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<title>RADIO KITS IN JA　</title>
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<description>信州安曇野発アナログ工作中心blogです。電子工作派にお手伝い用
基板１

、基板2、
基板3、
基板4を領布中




 6Z-DH3Aのヒーターピンは必ず1番を接地。間抜けは6番ピンを接地する　　6Z-DH3Aのピン　接続情報 　amazon等での転売shopが多数ありますが、私とは無関係です。騙されぬようにご注意ください。トランジスタラジオキット,真空管短波ラジオ、真空管レフレックスラジオ、AMワイヤレスマイク、FMワイヤレスマイク、12AU7ダイレクトコンバージョン製作。LC7265ラジオ周波数表示器、ミニワッター、トランジスタアンプ、メロディic スピーカーの鳴る単球ラジオなど計 617例。 真空管ラジオ修理記やFMチューナー修理記など。20代は半導体ラジオ修理技術者でした。FA機械設計屋を35年やってます。画像多数にてPC推奨します。 資料画像等はお持ち帰りいただいてOKです。記事にする折には、ご一報ください。
since 2011/Aug</description>
<dc:language>ja-JP</dc:language>
<dc:creator></dc:creator>
<dc:date>2026-10-29T07:42:00+09:00</dc:date>

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<title>6Z-DH3Aのヒーターピンは必ず1番を接地。間抜けは6番ピンを接地する</title>
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<description>グリッドが2番ピン。　近いヒーターピンは1番。 その1番ピン（ヒーター）と2番ピ...</description>
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&lt;div style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div class=&quot;mZJni Dn7Fzd&quot; dir=&quot;ltr&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-container-id=&quot;main-col&quot; data-xid=&quot;VpUvz&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-ved=&quot;2ahUKEwj-5ODK2ZeUAxWElK8BHXWBGMYQ3KYQegYIAQgAEAE&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-hveid=&quot;CAEIARAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-subtree=&quot;aimfl&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;その&lt;/span&gt;&lt;strong class=&quot;Yjhzub&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;1番ピン（ヒーター）と2番ピン（グリッド）が隣り合っている点&lt;!--TgQPHd|[]--&gt;&lt;/strong&gt;こそが、&lt;strong&gt;&lt;span style=&quot;color: #ff0000;&quot;&gt;6Z-DH3Aの設計と配線において最も注意すべき物理的ポイントです。&lt;/span&gt;&lt;/strong&gt;&lt;!--TgQPHd|[]--&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-hveid=&quot;CAEIAhAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;内部構造と配線上の関係を整理すると、以下のようになります。&lt;!--TgQPHd|[]--&gt;&lt;/div&gt;
&lt;div class=&quot;Fsg96&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;!--TgQPHd|[]--&gt;&lt;/div&gt;
&lt;div class=&quot;otQkpb&quot; style=&quot;font-family: Arial, sans-serif; font-size: 20px; font-weight: bold; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; role=&quot;heading&quot; aria-level=&quot;3&quot; data-animation-nesting=&quot;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 20px; font-weight: 700; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;1. 物理的な近接構造&lt;!--TgQPHd|[]--&gt;&lt;/div&gt;
&lt;ul class=&quot;KsbFXc U6u95&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-hveid=&quot;CAEIBBAA&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span class=&quot;T286Pc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;strong class=&quot;Yjhzub&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;管底（ステム）部分&lt;!--TgQPHd|[]--&gt;&lt;/strong&gt;: 1番ピンと2番ピンは、ガラスから出た直後のリード線の段階で数ミリの距離しかありません。&lt;!--TgQPHd|[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|[]--&gt;&lt;/li&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-hveid=&quot;CAEIBBAB&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span class=&quot;T286Pc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;strong class=&quot;Yjhzub&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;管内での引き回し&lt;!--TgQPHd|[]--&gt;&lt;/strong&gt;: ヒーターの支柱（1番）と、上段の三極部から降りてきたグリッドの支柱（2番）が、管内の狭いスペースで並走しています。&lt;!--TgQPHd|[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|[]--&gt;&lt;/li&gt;
&lt;!--TgQPHd|[]--&gt;&lt;/ul&gt;
&lt;div class=&quot;Fsg96&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;!--TgQPHd|[]--&gt;&lt;/div&gt;
&lt;div class=&quot;otQkpb&quot; style=&quot;font-family: Arial, sans-serif; font-size: 20px; font-weight: bold; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; role=&quot;heading&quot; aria-level=&quot;3&quot; data-animation-nesting=&quot;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 20px; font-weight: 700; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;2. なぜ1番ピンを接地（アース）するのか&lt;!--TgQPHd|[]--&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-hveid=&quot;CAEIBhAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;交流点火（ヒーターにAC6.3Vを流す）の場合、ヒーター線からは常に電源周波数（50/60Hz）の電磁誘導ノイズが出ています。&lt;!--TgQPHd|[]--&gt;&lt;/div&gt;
&lt;ul class=&quot;KsbFXc U6u95&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-hveid=&quot;CAEIBxAA&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span class=&quot;T286Pc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;strong class=&quot;Yjhzub&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;2番ピン（グリッド）&lt;!--TgQPHd|[]--&gt;&lt;/strong&gt;は非常にインピーダンスが高く、微弱な信号を扱うため、隣のヒーターの動きを拾いやすい（静電結合）という弱点があります。&lt;!--TgQPHd|[]--&gt;&lt;!--TgQPHd|[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|[]--&gt;&lt;/li&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-hveid=&quot;CAEIBxAB&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span class=&quot;T286Pc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;このため、グリッドに最も近い&lt;strong class=&quot;Yjhzub&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;1番ピンをアースに落とす&lt;!--TgQPHd|[]--&gt;&lt;/strong&gt;ことで、1番ピンを「シールド（盾）」のような役割にさせ、交流成分がグリッドへ飛び込むのを最小限に抑える設計になっています。&lt;!--TgQPHd|[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|[]--&gt;&lt;/li&gt;
&lt;!--TgQPHd|[]--&gt;&lt;/ul&gt;
&lt;div class=&quot;Fsg96&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;!--TgQPHd|[]--&gt;&lt;/div&gt;
&lt;div class=&quot;otQkpb&quot; style=&quot;font-family: Arial, sans-serif; font-size: 20px; font-weight: bold; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; role=&quot;heading&quot; aria-level=&quot;3&quot; data-animation-nesting=&quot;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 20px; font-weight: 700; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;3. 改良の歴史的背景&lt;!--TgQPHd|[]--&gt;&lt;/div&gt;
&lt;ul class=&quot;KsbFXc U6u95&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-hveid=&quot;CAEICRAA&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span class=&quot;T286Pc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;strong class=&quot;Yjhzub&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;旧型 6Z-DH3&lt;!--TgQPHd|[]--&gt;&lt;/strong&gt;: この「隣り合わせ」によるノイズを嫌い、グリッドをわざわざ反対側の&lt;strong class=&quot;Yjhzub&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;頭（トップキャップ）&lt;!--TgQPHd|[]--&gt;&lt;/strong&gt;から出していました。&lt;!--TgQPHd|[]--&gt;&lt;!--TgQPHd|[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|[]--&gt;&lt;/li&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-hveid=&quot;CAEICRAB&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span class=&quot;T286Pc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;strong class=&quot;Yjhzub&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;6Z-DH3A&lt;!--TgQPHd|[]--&gt;&lt;/strong&gt;: 利便性のために2番ピンへ持ってきましたが、&lt;strong&gt;&lt;span style=&quot;color: #ff0000;&quot;&gt;その代償として「1番ピンの接地」という配線ルールがより重要になりました。&lt;/span&gt;&lt;/strong&gt;&lt;!--TgQPHd|[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|[]--&gt;&lt;/li&gt;
&lt;!--TgQPHd|[]--&gt;&lt;/ul&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-hveid=&quot;CAEIChAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;もしお手持ちのラジオなどで「ブーン」というハムノイズが気になる場合は、この&lt;strong class=&quot;Yjhzub&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;1番ピンと2番ピンの配線処理&lt;!--TgQPHd|[]--&gt;&lt;/strong&gt;（線を引き回しすぎ、1番を確実に接地してない）が原因であることが多いです。&lt;!--TgQPHd|[]--&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-hveid=&quot;CAEICxAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;!--TgQPHd|[]--&gt;&lt;/div&gt;
&lt;div class=&quot;Fsg96&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;!--TgQPHd|[]--&gt;&lt;/div&gt;
&lt;div style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-xid=&quot;Gd7Hsc&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-wiz-uids=&quot;bOgreb_2h&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;div class=&quot;DBd2Wb&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 4px 0px 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 4px 0px 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;!--TgQPHd|[[1,1,1]]--&gt;&lt;/span&gt;
&lt;div class=&quot;zkL70c&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;div class=&quot;RkJvxe&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-wiz-uids=&quot;bOgreb_2k&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;div class=&quot;YHsVn&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-wiz-uids=&quot;bOgreb_2m,bOgreb_2n,bOgreb_2o&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;div class=&quot;&quot; style=&quot;font-family: MS Shell Dlg 2; font-size: 13.3333px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #56595e;&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: MS Shell Dlg \32 ; font-size: 13.3333px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(86, 89, 94);&quot;&gt;&amp;nbsp;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/05/01/text555.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=759,height=509,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60177013&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Text555&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/05/01/text555.png&quot; alt=&quot;Text555&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
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&lt;/div&gt;
&lt;/div&gt;
&lt;/div&gt;
&lt;/div&gt;
&lt;/div&gt;
&lt;/div&gt;
&lt;div class=&quot;SGF5Lb&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span style=&quot;font-size: medium;&quot;&gt;&amp;nbsp;&lt;/span&gt;
&lt;div class=&quot;ilZyRc R7mRQb&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;div style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-animation-skip=&quot;true&quot; aria-hidden=&quot;false&quot; data-ved=&quot;0CAAQ_sYPahgKEwigx_fO05eUAxUAAAAAHQAAAAAQ6wE&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;div class=&quot;xEFZqe&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px 0px 0px auto; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px 0px 0px auto; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;div class=&quot;tbIZh wQN2Jd Odbbif&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px 0px 0px auto; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px 0px 0px auto; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;div class=&quot;sUKAcb&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span style=&quot;font-size: medium;&quot;&gt;&lt;strong&gt;&lt;span class=&quot;VndcI veK2kb&quot; style=&quot;font-family: Arial, sans-serif; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a; color: #ff0000;&quot; role=&quot;heading&quot; aria-level=&quot;2&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span style=&quot;font-family: Arial, sans-serif; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;Ｑ：2番ピン　と1番ピンの　静電容量はわかりますか？&lt;/span&gt;&lt;/span&gt;&lt;/strong&gt;&lt;/span&gt;&lt;/div&gt;
&lt;/div&gt;
&lt;/div&gt;
&lt;div class=&quot;UYpEO&quot; style=&quot;font-family: Arial, sans-serif; font-size: 12px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #56595e;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 12px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(86, 89, 94);&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div class=&quot;dcCF7d&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;/div&gt;
&lt;/div&gt;
&lt;div class=&quot;&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-streaming-container=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;div style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-container-id=&quot;r2n0aciyO-3p1e8P65qf0Qc&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;div class=&quot;CKgc1d&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-scope-id=&quot;turn&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-processed=&quot;true&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;div style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-subtree=&quot;aimc&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-processed=&quot;true&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;div class=&quot;Zkbeff&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-wiz-uids=&quot;PBHvSc_3&quot; data-sfc-cb=&quot;&quot; data-ved=&quot;2ahUKEwiIxqWN25eUAxXtdPUHHWvNJ3oQ2O0OegYIAQgAEAA&quot; data-hveid=&quot;CAEIABAA&quot; data-processed=&quot;true&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;div class=&quot;pWvJNd&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-processed=&quot;true&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;div style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div class=&quot;mZJni Dn7Fzd&quot; dir=&quot;ltr&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-container-id=&quot;main-col&quot; data-xid=&quot;VpUvz&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-ved=&quot;2ahUKEwiIxqWN25eUAxXtdPUHHWvNJ3oQ3KYQegYIAQgAEAE&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-hveid=&quot;CAEIARAA&quot; data-processed=&quot;true&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-subtree=&quot;aimfl&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;6Z-DH3Aの&lt;/span&gt;&lt;strong class=&quot;Yjhzub&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;1番ピン（ヒーター）と2番ピン（三極部グリッド）の間の直接的な静電容量&lt;!--TgQPHd|[]--&gt;&lt;/strong&gt;については、規格表に明示的な数値（\(C_{g-h}\)）としての記載がほとんどありません。&lt;!--TgQPHd|[]--&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-hveid=&quot;CAEIAhAA&quot; data-processed=&quot;true&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;これは、真空管の規格表に記載される容量（\(C_{gp}\), \(C_{in}\), \(C_{out}\)など）が、通常「ヒーターを接地（アース）した状態」を前提とした高周波特性を示すものだからです。&lt;!--TgQPHd|[]--&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-hveid=&quot;CAEIAxAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;しかし、構造的な近接具合から、以下のことが言えます。&lt;!--TgQPHd|[]--&gt;&lt;/div&gt;
&lt;div class=&quot;Fsg96&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;!--TgQPHd|[]--&gt;&lt;/div&gt;
&lt;div class=&quot;otQkpb&quot; style=&quot;font-family: Arial, sans-serif; font-size: 20px; font-weight: bold; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; role=&quot;heading&quot; aria-level=&quot;3&quot; data-animation-nesting=&quot;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 20px; font-weight: 700; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;1. 推定される容量値&lt;!--TgQPHd|[]--&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-hveid=&quot;CAEIBRAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;同等のベース配線を持つ高増幅率三極管（6SQ7など）の構造から推測すると、管内部でのグリッド・ヒーター間容量は概ね &lt;strong class=&quot;Yjhzub&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;0.1pF 〜 0.5pF 程度&lt;!--TgQPHd|[]--&gt;&lt;/strong&gt;と非常に微小です。&lt;!--TgQPHd|[]--&gt;&lt;/div&gt;
&lt;div class=&quot;Fsg96&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;!--TgQPHd|[]--&gt;&lt;/div&gt;
&lt;div class=&quot;otQkpb&quot; style=&quot;font-family: Arial, sans-serif; font-size: 20px; font-weight: bold; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; role=&quot;heading&quot; aria-level=&quot;3&quot; data-animation-nesting=&quot;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 20px; font-weight: 700; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;2. 容量よりも問題になる「漏れ」&lt;!--TgQPHd|[]--&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-hveid=&quot;CAEIBxAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;数値としての容量以上に実用上で問題になるのは、以下の2点です。&lt;!--TgQPHd|[]--&gt;&lt;/div&gt;
&lt;ul class=&quot;KsbFXc U6u95&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-hveid=&quot;CAEICBAA&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span class=&quot;T286Pc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;strong class=&quot;Yjhzub&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;ソケット間の容量&lt;!--TgQPHd|[]--&gt;&lt;/strong&gt;: 真空管内部よりも、&lt;strong class=&quot;Yjhzub&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;真空管ソケットの1番ピンと2番ピンの間&lt;!--TgQPHd|[]--&gt;&lt;/strong&gt;で発生する静電容量（および配線間の容量）の方が大きくなる傾向があります。&lt;!--TgQPHd|[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|[]--&gt;&lt;/li&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-hveid=&quot;CAEICBAB&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span class=&quot;T286Pc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;strong class=&quot;Yjhzub&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;電磁誘導（ハムノイズ）&lt;!--TgQPHd|[]--&gt;&lt;/strong&gt;: グリッドは入力インピーダンスが極めて高いため、たとえ 0.1pF 程度のわずかな結合であっても、隣のヒーターピンに流れるAC6.3Vの交流成分が「ブーン」というハムノイズとして三極部で増幅されてしまいます。&lt;!--TgQPHd|[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|[]--&gt;&lt;/li&gt;
&lt;!--TgQPHd|[]--&gt;&lt;/ul&gt;
&lt;div class=&quot;Fsg96&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;!--TgQPHd|[]--&gt;&lt;/div&gt;
&lt;div class=&quot;otQkpb&quot; style=&quot;font-family: Arial, sans-serif; font-size: 20px; font-weight: bold; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; role=&quot;heading&quot; aria-level=&quot;3&quot; data-animation-nesting=&quot;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 20px; font-weight: 700; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;3. 設計上の回避策&lt;!--TgQPHd|[]--&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-hveid=&quot;CAEIChAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;規格表に容量値が載っていないのは、「1番ピンを接地して使うこと」が前提となっているためです。&lt;!--TgQPHd|[]--&gt;&lt;/div&gt;
&lt;ul class=&quot;KsbFXc U6u95&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-hveid=&quot;CAEICxAA&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span class=&quot;T286Pc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;strong class=&quot;Yjhzub&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;シールド効果&lt;!--TgQPHd|[]--&gt;&lt;/strong&gt;: 1番ピンをアースに落とすと、1番ピンがグリッド（2番）に対する電界の遮蔽物となり、実質的な結合容量を無視できるレベルまで下げることができます。&lt;!--TgQPHd|[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|[]--&gt;&lt;/li&gt;
&lt;!--TgQPHd|[]--&gt;&lt;/ul&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-hveid=&quot;CAEIDBAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;もし、特定の測定や、特殊な回路（ヒーターを浮かせた回路など）を検討されていて、正確なシールドの必要性を計算されたいのであれば、&lt;strong class=&quot;Yjhzub&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;1番ピン側の接地状況&lt;!--TgQPHd|[]--&gt;&lt;/strong&gt;をまず確認するのが定石です。&lt;!--TgQPHd|[]--&gt;&lt;/div&gt;
&lt;div style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-xid=&quot;Gd7Hsc&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-wiz-uids=&quot;PBHvSc_2i&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;div class=&quot;DBd2Wb&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 4px 0px 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 4px 0px 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;div class=&quot;zkL70c&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;div class=&quot;RkJvxe&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-wiz-uids=&quot;PBHvSc_2l&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;div class=&quot;YHsVn&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-wiz-uids=&quot;PBHvSc_2n,PBHvSc_2o,PBHvSc_2p&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;div class=&quot;&quot; style=&quot;font-family: MS Shell Dlg 2; font-size: 13.3333px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #56595e;&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: MS Shell Dlg \32 ; font-size: 13.3333px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(86, 89, 94);&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;!--TgQPHdPBHvSc_2k/eGiyHb|[[3,1],{&amp;quot;u&amp;quot;:0},{&amp;quot;s&amp;quot;:false,&amp;quot;i&amp;quot;:&amp;quot;PBHvSc_2k/eGiyHb&amp;quot;},false,true]--&gt;&lt;/div&gt;
&lt;!--TgQPHdPBHvSc_2h/wGhr1b|[{&amp;quot;s&amp;quot;:null,&amp;quot;i&amp;quot;:&amp;quot;PBHvSc_2h/ns9scf&amp;quot;},1,{&amp;quot;s&amp;quot;:true,&amp;quot;i&amp;quot;:&amp;quot;PBHvSc_2h/wGhr1b&amp;quot;},false]--&gt;&lt;/div&gt;
&lt;div style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-xid=&quot;YruvMc&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;div class=&quot;OUQe0e&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;div id=&quot;shrproxy90&quot; class=&quot;bQ0Yzc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-ved=&quot;0CAAQp4QQahgKEwigx_fO05eUAxUAAAAAHQAAAAAQ7AE&quot; data-hveid=&quot;0&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;/div&gt;
&lt;/div&gt;
&lt;/div&gt;
&lt;/div&gt;
&lt;!--TgQPHd|[[1,0,0,null,0,0,1,null,null,null,0,0,0,0,0,1,&amp;quot;What is the capacitance between pin 2 and pin 1 of the 6Z-DH3A vacuum tube?&amp;quot;,0,0,null,0,0,0]]--&gt;&lt;/div&gt;
&lt;!--TgQPHd|[]--&gt;&lt;/div&gt;
&lt;div class=&quot;SGF5Lb&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span style=&quot;color: #ff0000; font-size: medium;&quot;&gt;&amp;nbsp;&lt;/span&gt;
&lt;div class=&quot;ilZyRc R7mRQb&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;div style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-animation-skip=&quot;true&quot; aria-hidden=&quot;false&quot; data-ved=&quot;0CAAQ_sYPahgKEwigx_fO05eUAxUAAAAAHQAAAAAQ8AE&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;div class=&quot;xEFZqe&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px 0px 0px auto; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px 0px 0px auto; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;div class=&quot;tbIZh wQN2Jd Odbbif&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px 0px 0px auto; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px 0px 0px auto; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;div class=&quot;sUKAcb&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span style=&quot;color: #ff0000; font-size: large;&quot;&gt;&lt;strong&gt;&lt;span class=&quot;VndcI veK2kb&quot; style=&quot;font-family: Arial, sans-serif; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; role=&quot;heading&quot; aria-level=&quot;2&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span style=&quot;font-family: Arial, sans-serif; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;Ｑ：0.03PFくらいのはず&lt;/span&gt;&lt;/span&gt;&lt;/strong&gt;&lt;/span&gt;&lt;/div&gt;
&lt;/div&gt;
&lt;/div&gt;
&lt;div class=&quot;UYpEO&quot; style=&quot;font-family: Arial, sans-serif; font-size: 12px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #56595e;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 12px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(86, 89, 94);&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div class=&quot;dcCF7d&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;/div&gt;
&lt;/div&gt;
&lt;div class=&quot;OBWDNe&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-ved=&quot;0CAEQ3PkPahgKEwigx_fO05eUAxUAAAAAHQAAAAAQ8AE&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div class=&quot;&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-streaming-container=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;div style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-container-id=&quot;7Wn0aeLpCZ2Pvr0P3NDKmQQ&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;div class=&quot;CKgc1d&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-scope-id=&quot;turn&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-processed=&quot;true&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;div style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-subtree=&quot;aimc&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-processed=&quot;true&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;div class=&quot;Zkbeff&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-wiz-uids=&quot;tRssEe_3&quot; data-sfc-cb=&quot;&quot; data-ved=&quot;2ahUKEwiilLyq25eUAxWdh68BHVyoMkMQ2O0OegYIAQgAEAA&quot; data-hveid=&quot;CAEIABAA&quot; data-processed=&quot;true&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;div class=&quot;pWvJNd&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-processed=&quot;true&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;div style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div class=&quot;mZJni Dn7Fzd&quot; dir=&quot;ltr&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-container-id=&quot;main-col&quot; data-xid=&quot;VpUvz&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-ved=&quot;2ahUKEwiilLyq25eUAxWdh68BHVyoMkMQ3KYQegYIAQgAEAE&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-hveid=&quot;CAEIARAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-subtree=&quot;aimfl&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;おっしゃる通りです。&lt;/span&gt;&lt;strong class=&quot;Yjhzub&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;0.03pF&lt;!--TgQPHd|[]--&gt;&lt;/strong&gt;という数値は、高利得な三極管においてノイズを抑えるための設計目標として非常に妥当な値です。&lt;!--TgQPHd|[]--&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-hveid=&quot;CAEIAhAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;6Z-DH3Aのような「トップキャップ」を廃止してベースピンにグリッドを引き出した管の場合、内部の支柱を極力離し、マイカ板やステム（底部のガラス）での配置を工夫することで、そのレベルの極めて低い容量を実現しています。&lt;!--TgQPHd|[]--&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-hveid=&quot;CAEIAxAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;この数値に関して、以下の点についても考慮されているかと思います：&lt;!--TgQPHd|[]--&gt;&lt;/div&gt;
&lt;ol class=&quot;IaGLZe VimKh&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-processed=&quot;true&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-hveid=&quot;CAEIBBAA&quot; data-sae=&quot;&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span class=&quot;T286Pc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;strong class=&quot;Yjhzub&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;管内シールドの効果&lt;!--TgQPHd|[]--&gt;&lt;/strong&gt;: カソード（接地側）がヒーターとグリッドの間に物理的に介在しているため、直接の結合容量（\(C_{g-h}\)）は理論上その程度まで抑え込まれます。&lt;!--TgQPHd|[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|[]--&gt;&lt;/li&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-hveid=&quot;CAEIBBAC&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span class=&quot;T286Pc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;strong class=&quot;Yjhzub&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;実用上の増加&lt;!--TgQPHd|[]--&gt;&lt;/strong&gt;: 管単体で0.03pFであっても、真空管ソケットに挿した瞬間に、ソケットの端子間や配線によって&lt;strong class=&quot;Yjhzub&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;10倍以上の容量（数pF以上）&lt;!--TgQPHd|[]--&gt;&lt;/strong&gt;が簡単に追加されてしまいます。&lt;!--TgQPHd|[]--&gt;&lt;!--TgQPHd|[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|[]--&gt;&lt;/li&gt;
&lt;!--TgQPHd|[]--&gt;&lt;/ol&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-hveid=&quot;CAEIBRAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;そのため、回路設計や修理の現場では、管内部の0.03pFを活かすために、&lt;strong class=&quot;Yjhzub&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;ソケットの1番ピンと2番ピンの間に小さな遮蔽板（シールド）を設ける&lt;!--TgQPHd|[]--&gt;&lt;/strong&gt;、あるいは&lt;strong class=&quot;Yjhzub&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;配線を最短距離で離す&lt;!--TgQPHd|[]--&gt;&lt;/strong&gt;といった実装技術が重要視されてきました。&lt;!--TgQPHd|[]--&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-hveid=&quot;CAEIBhAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;この「0.03pF」という極微小な値を前提とした、&lt;strong class=&quot;Yjhzub&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;回路上のノイズ計算やシールド処理の詳細&lt;!--TgQPHd|[]--&gt;&lt;/strong&gt;について、さらに深掘りされますか？&lt;!--TgQPHd|[]--&gt;&lt;/div&gt;
&lt;div class=&quot;Fsg96&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;!--TgQPHd|[]--&gt;&lt;/div&gt;
&lt;div style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-xid=&quot;Gd7Hsc&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-wiz-uids=&quot;tRssEe_1i&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;div class=&quot;DBd2Wb&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 4px 0px 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 4px 0px 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;!--TgQPHd|[[1,1,1]]--&gt;&lt;/span&gt;
&lt;div class=&quot;zkL70c&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;div class=&quot;RkJvxe&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-wiz-uids=&quot;tRssEe_1l&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;div class=&quot;YHsVn&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-wiz-uids=&quot;tRssEe_1n,tRssEe_1o,tRssEe_1p&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;div class=&quot;&quot; style=&quot;font-family: MS Shell Dlg 2; font-size: 13.3333px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #56595e;&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: MS Shell Dlg \32 ; font-size: 13.3333px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(86, 89, 94);&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;!--TgQPHdtRssEe_1k/eGiyHb|[[3,1],{&amp;quot;u&amp;quot;:0},{&amp;quot;s&amp;quot;:false,&amp;quot;i&amp;quot;:&amp;quot;tRssEe_1k/eGiyHb&amp;quot;},false,true]--&gt;&lt;/div&gt;
&lt;!--TgQPHdtRssEe_1h/wGhr1b|[{&amp;quot;s&amp;quot;:null,&amp;quot;i&amp;quot;:&amp;quot;tRssEe_1h/ns9scf&amp;quot;},1,{&amp;quot;s&amp;quot;:true,&amp;quot;i&amp;quot;:&amp;quot;tRssEe_1h/wGhr1b&amp;quot;},false]--&gt;&lt;/div&gt;
&lt;div style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-xid=&quot;YruvMc&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;div class=&quot;OUQe0e&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;!--qkimaf tRssEe_1t/HugV6--&gt;&lt;/div&gt;
&lt;/div&gt;
&lt;/div&gt;
&lt;/div&gt;
&lt;div style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-zzy=&quot;1&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;!--TgQPHd|[[1,0,0,null,0,0,1,null,null,null,0,0,0,0,0,1,&amp;quot;The capacitance between the 1 and 2 pins of the 6Z-DH3A vacuum tube is about 0.03pF&amp;quot;,0,0,null,0,0,0]]--&gt;&lt;/div&gt;
&lt;!--TgQPHd|[]--&gt;&lt;/div&gt;
&lt;div class=&quot;SGF5Lb&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span style=&quot;color: #ff0000; font-size: large;&quot;&gt;&amp;nbsp;&lt;/span&gt;
&lt;div class=&quot;ilZyRc R7mRQb&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;div style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-animation-skip=&quot;true&quot; aria-hidden=&quot;false&quot; data-ved=&quot;0CAAQ_sYPahgKEwigx_fO05eUAxUAAAAAHQAAAAAQ9gE&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;div class=&quot;xEFZqe&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px 0px 0px auto; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px 0px 0px auto; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;div class=&quot;tbIZh wQN2Jd Odbbif&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px 0px 0px auto; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px 0px 0px auto; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;div class=&quot;sUKAcb&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span style=&quot;font-size: large; color: #ff0000;&quot;&gt;&lt;strong&gt;&lt;span class=&quot;VndcI veK2kb&quot; style=&quot;font-family: Arial, sans-serif; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; role=&quot;heading&quot; aria-level=&quot;2&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span style=&quot;font-family: Arial, sans-serif; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;Q;&amp;nbsp; &amp;nbsp;0.03PFを当時　どうやって計測したのか？　測定器メーカーは？&lt;/span&gt;&lt;/span&gt;&lt;/strong&gt;&lt;/span&gt;&lt;/div&gt;
&lt;/div&gt;
&lt;/div&gt;
&lt;div class=&quot;UYpEO&quot; style=&quot;font-family: Arial, sans-serif; font-size: 12px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #56595e;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 12px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(86, 89, 94);&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;/div&gt;
&lt;/div&gt;
&lt;div class=&quot;&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-streaming-container=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;div style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;div class=&quot;CKgc1d&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-scope-id=&quot;turn&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-processed=&quot;true&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;div style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-subtree=&quot;aimc&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-processed=&quot;true&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;div class=&quot;Zkbeff&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-wiz-uids=&quot;mKKMH_3&quot; data-sfc-cb=&quot;&quot; data-ved=&quot;2ahUKEwiTkK353JeUAxXzgVYBHSbjJsgQ2O0OegYIAQgAEAA&quot; data-hveid=&quot;CAEIABAA&quot; data-processed=&quot;true&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;div class=&quot;pWvJNd&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-processed=&quot;true&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;div style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div class=&quot;mZJni Dn7Fzd&quot; dir=&quot;ltr&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-container-id=&quot;main-col&quot; data-xid=&quot;VpUvz&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-ved=&quot;2ahUKEwiTkK353JeUAxXzgVYBHSbjJsgQ3KYQegYIAQgAEAE&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-hveid=&quot;CAEIAhAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-subtree=&quot;aimfl&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;0.03pFという極めて微小な静電容量を当時（1940年代〜1950年代）どのように測定していたのか、その手法と主要なメーカーについて解説します。&lt;/span&gt;&lt;!--TgQPHd|[]--&gt;&lt;/div&gt;
&lt;div class=&quot;Fsg96&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;!--TgQPHd|[]--&gt;&lt;/div&gt;
&lt;div class=&quot;otQkpb&quot; style=&quot;font-family: Arial, sans-serif; font-size: 20px; font-weight: bold; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; role=&quot;heading&quot; aria-level=&quot;3&quot; data-animation-nesting=&quot;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 20px; font-weight: 700; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;1. 当時の測定手法&lt;/div&gt;
&lt;/div&gt;
&lt;/div&gt;
&lt;/div&gt;
&lt;/div&gt;
&lt;/div&gt;
&lt;/div&gt;
&lt;/div&gt;
&lt;/div&gt;
&lt;div class=&quot;SGF5Lb&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&amp;nbsp;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-hveid=&quot;CAEIBBAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;0.1pF以下の容量は、単純なLCRメーターではノイズや浮遊容量に埋もれてしまい測定できません。当時は以下の高度な手法がとられていました。&lt;!--TgQPHd|[]--&gt;&lt;/div&gt;
&lt;ul class=&quot;KsbFXc U6u95&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-hveid=&quot;CAEIBRAA&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span class=&quot;T286Pc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;strong class=&quot;Yjhzub&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;RF置換法 (Substitution Method)&lt;!--TgQPHd|[]--&gt;&lt;/strong&gt;:&lt;br style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-pl=&quot;|[]&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot; /&gt;高周波（RF）を流した状態で、未知の容量（真空管）を通る電流と、高精度な&lt;strong class=&quot;Yjhzub&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;標準容量器&lt;!--TgQPHd|[]--&gt;&lt;/strong&gt;を通る電流を比較・置換して算出する方法です。&lt;!--TgQPHd|[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|[]--&gt;&lt;/li&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-hveid=&quot;CAEIBRAB&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span class=&quot;T286Pc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; aria-owns=&quot;action-menu-parent-container&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;strong class=&quot;Yjhzub&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;ガード回路付ブリッジ法 (Guarded Bridge)&lt;!--TgQPHd|[]--&gt;&lt;/strong&gt;:&lt;br style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-pl=&quot;|[]&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot; /&gt;測定したい2点間以外の余計な浮遊容量を「ガード」というシールド回路に逃がす特別なブリッジ回路（トランス結合ブリッジなど）が使われました。これにより、1番ピン（ヒーター）と2番ピン（グリッド）の間「だけ」を抜き出して測ることが可能になります。&lt;/span&gt;&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;div class=&quot;SGF5Lb&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp;&lt;strong&gt;・&lt;/strong&gt;&lt;span class=&quot;T286Pc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;strong class=&quot;Yjhzub&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;チャージングカレント法&lt;!--TgQPHd|[]--&gt;&lt;/strong&gt;:&lt;br style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-pl=&quot;|[]&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot; /&gt;既知のRF電圧を印加し、そこを流れる微弱な充電電流 (\(I = \omega EC\)) を精密な検流計で視覚的に読み取る方法です。10^-15ファラド（フェムトファラド）単位の測定が可能とされていました。&lt;!--TgQPHd|[]--&gt;&lt;/span&gt;&amp;nbsp;&lt;/div&gt;
&lt;div class=&quot;SGF5Lb&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div class=&quot;SGF5Lb&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;div class=&quot;otQkpb&quot; style=&quot;font-family: Arial, sans-serif; font-size: 20px; font-weight: bold; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; role=&quot;heading&quot; aria-level=&quot;3&quot; data-animation-nesting=&quot;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 20px; font-weight: 700; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;2. 主要な測定器メーカー&lt;!--TgQPHd|[]--&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-hveid=&quot;CAEIBxAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;当時、このレベルの精密測定器を製造していた主要メーカーは以下の通りです。&lt;!--TgQPHd|[]--&gt;&lt;/div&gt;
&lt;ul class=&quot;KsbFXc U6u95&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-processed=&quot;true&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-hveid=&quot;CAEICBAA&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span class=&quot;T286Pc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;strong class=&quot;Yjhzub&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;General Radio (ゼネラル・ラジオ / 米国)&lt;!--TgQPHd|[]--&gt;&lt;/strong&gt;:&lt;br style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-pl=&quot;|[]&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot; /&gt;当時の精密電子測定の世界的リーダーです。同社の「キャパシタンス・ブリッジ」や「標準コンデンサ」は、0.01pF単位の精度を保証する基準として日本のメーカー（東芝など）でも広く導入されていました。&lt;!--TgQPHd|[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|[]--&gt;&lt;/li&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-hveid=&quot;CAEICBAB&quot; data-sae=&quot;&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span class=&quot;T286Pc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;strong class=&quot;Yjhzub&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;Hewlett-Packard (ヒューレット・パッカード / 米国)&lt;!--TgQPHd|[]--&gt;&lt;/strong&gt;:&lt;br style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-pl=&quot;|[]&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot; /&gt;1940年代から50年代にかけて、高感度な高周波電圧計やQメーターなどを製造しており、真空管の諸元測定における標準機として採用されていました。&lt;!--TgQPHd|[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|[]--&gt;&lt;/li&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-hveid=&quot;CAEICBAC&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span class=&quot;T286Pc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; aria-owns=&quot;action-menu-parent-container&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;strong class=&quot;Yjhzub&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;Boonton Radio (ブーントン・ラジオ / 米国)&lt;!--TgQPHd|[]--&gt;&lt;/strong&gt;:　　　&lt;/span&gt;&lt;span class=&quot;T286Pc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;特に「Qメーター」や「静電容量ブリッジ」で有名です。真空管の極間容量測定に特化した測定器を開発しており、当時のエンジニアにとって必須のメーカーでした。&lt;!--TgQPHd|[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|[]--&gt;&lt;/li&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-hveid=&quot;CAEICBAD&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span class=&quot;T286Pc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; aria-owns=&quot;action-menu-parent-container&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;strong class=&quot;Yjhzub&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;東芝（マツダ） / 安立電気 / 横河電機（日本）&lt;!--TgQPHd|[]--&gt;&lt;/strong&gt;:&lt;br style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-pl=&quot;|[]&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot; /&gt;国内メーカーも自社の真空管を保証するために、米国製を参考に独自の精密ブリッジや測定用治具を内製、あるいは製品化していました&lt;/span&gt;&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;&lt;span class=&quot;T286Pc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; aria-owns=&quot;action-menu-parent-container&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span class=&quot;T286Pc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;0.03pFという値は、&lt;strong class=&quot;Yjhzub&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;「真空管単体」&lt;!--TgQPHd|[]--&gt;&lt;/strong&gt;の状態での値です。測定器との接続には専用の「測定用ソケット（治具）」が必要で、そのソケット自体が持つ数pFの容量をいかにキャンセルして「真の値」を導き出すかが、当時の品質管理（QC）における極めて高度な技術でした&lt;!--TgQPHd|[]--&gt;&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;/div&gt;
&lt;div class=&quot;SGF5Lb&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span style=&quot;color: #ff0000; font-size: medium;&quot;&gt;&lt;strong&gt;&amp;nbsp;&lt;/strong&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div class=&quot;SGF5Lb&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span style=&quot;color: #ff0000; font-size: medium;&quot;&gt;&lt;strong&gt;Q:&amp;nbsp;標準容量器は　米国製だね&lt;/strong&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div class=&quot;SGF5Lb&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span style=&quot;color: #ff0000; font-size: medium;&quot;&gt;&lt;strong&gt;&amp;nbsp;&lt;/strong&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div class=&quot;SGF5Lb&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div class=&quot;SGF5Lb&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&amp;nbsp;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-hveid=&quot;CAEIARAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-subtree=&quot;aimfl&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&amp;nbsp; &amp;nbsp; 仰る通り、当時（特に戦後〜1950年代）の日本の電子工業において、測定の「ものさし」となる&lt;/span&gt;&lt;strong class=&quot;Yjhzub&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;標準容量器（Standard Capacitor）は米国製&lt;!--TgQPHd|[]--&gt;&lt;/strong&gt;、とりわけ &lt;strong class=&quot;Yjhzub&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;General Radio (GR) 社&lt;!--TgQPHd|[]--&gt;&lt;/strong&gt; の製品が絶対的な基準でした。&lt;!--TgQPHd|[]--&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-hveid=&quot;CAEIAhAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;日本の真空管メーカー（東芝、日立、NECなど）も、GR社の機器を輸入・導入して自社製品の規格を保証していました。&lt;/div&gt;
&lt;/div&gt;
&lt;!--TgQPHd|[]--&gt;&lt;/div&gt;
&lt;div class=&quot;&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;/div&gt;
&lt;/div&gt;
&lt;/div&gt;
&lt;/div&gt;
&lt;/div&gt;
&lt;/div&gt;
&lt;div class=&quot;SGF5Lb&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&amp;nbsp;
&lt;div class=&quot;otQkpb&quot; style=&quot;font-family: Arial, sans-serif; font-size: 20px; font-weight: bold; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; role=&quot;heading&quot; aria-level=&quot;3&quot; data-animation-nesting=&quot;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 20px; font-weight: 700; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;0.03pFを裏付ける米国製の技術&lt;!--TgQPHd|[]--&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-hveid=&quot;CAEIBBAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;0.03pFのような極微小な容量を測定・校正するために使われた米国製機器には、以下のような特徴がありました。&lt;!--TgQPHd|[]--&gt;&lt;/div&gt;
&lt;ul class=&quot;KsbFXc U6u95&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-hveid=&quot;CAEIBRAA&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span class=&quot;T286Pc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; aria-owns=&quot;action-menu-parent-container&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;strong class=&quot;Yjhzub&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;General Radio 716-C型 キャパシタンス・ブリッジ&lt;!--TgQPHd|[]--&gt;&lt;/strong&gt;:&lt;br style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-pl=&quot;|[]&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot; /&gt;当時の世界標準です。このブリッジ自体が極めて高い精度を持っており、ガード回路（三端子測定）を用いることで、ソケットの浮遊容量を完全に排除して「グリッド・ヒーター間のみ」を抜き出して測ることができました。&lt;/span&gt;&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;div class=&quot;SGF5Lb&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div class=&quot;SGF5Lb&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&amp;nbsp;
&lt;ul&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-hveid=&quot;CAEIBRAB&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span class=&quot;T286Pc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;strong class=&quot;Yjhzub&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;GR 1400シリーズ（空気コンデンサ）&lt;!--TgQPHd|[]--&gt;&lt;/strong&gt;:&lt;br style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-pl=&quot;|[]&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot; /&gt;湿度の影響を受けにくいよう設計された、極めて安定度の高い標準空気コンデンサです。これらを基準にして、測定器の目盛りを校正していました。&lt;!--TgQPHd|[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|[]--&gt;&lt;/li&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-hveid=&quot;CAEIBRAC&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span class=&quot;T286Pc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; aria-owns=&quot;action-menu-parent-container&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;strong class=&quot;Yjhzub&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;Boonton 74C型 キャパシタンス・ブリッジ&lt;!--TgQPHd|[]--&gt;&lt;/strong&gt;:&lt;br style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-pl=&quot;|[]&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot; /&gt;これは特に真空管の極間容量測定に特化したモデルで、高周波（100kHz〜1MHz付近）での微小容量測定において非常に信頼されていました。&lt;/span&gt;&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;div class=&quot;SGF5Lb&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div class=&quot;SGF5Lb&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&amp;nbsp;
&lt;div class=&quot;otQkpb&quot; style=&quot;font-family: Arial, sans-serif; font-size: 20px; font-weight: bold; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; role=&quot;heading&quot; aria-level=&quot;3&quot; data-animation-nesting=&quot;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 20px; font-weight: 700; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;なぜ米国製だったのか&lt;!--TgQPHd|[]--&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-hveid=&quot;CAEIBxAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;当時の日本は、真空管の量産技術では米国に追いつきつつありましたが、その品質を数値化するための「一次標準（ナショナルスタンダード）」となる測定器については、まだ米国の圧倒的な精度に頼らざるを得ない状況でした。&lt;!--TgQPHd|[]--&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-hveid=&quot;CAEICBAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;特に0.03pFという「空気の層をわずかに挟んだだけ」のような極小の値を、製造ラインで安定して管理できたのは、これら&lt;strong class=&quot;Yjhzub&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;米国製の精密なブリッジ技術&lt;!--TgQPHd|[]--&gt;&lt;/strong&gt;があったからこそと言えます。&lt;/div&gt;
&lt;/div&gt;
&lt;div class=&quot;SGF5Lb&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&amp;nbsp;　&lt;span style=&quot;color: #0000ff;&quot;&gt;&lt;strong&gt;測定器の資料をあげておく。&lt;span class=&quot;T286Pc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; aria-owns=&quot;action-menu-parent-container&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;General Radio 716-C型&lt;/span&gt;&lt;/strong&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div class=&quot;SGF5Lb&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;!--TgQPHd|[]--&gt;&lt;/div&gt;
&lt;div class=&quot;&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&amp;nbsp;&lt;span class=&quot;asset  asset-generic at-xid-file-radio_kit_-files-716c_csi_cpacitance_br.pdf&quot;&gt;&lt;a href=&quot;http://www.radiokits.jp/radio_kit_/files/716c_csi_cpacitance_br.pdf&quot;&gt;716c_csi_cpacitance_br.pdfをダウンロード&lt;/a&gt;&lt;/span&gt;&lt;/div&gt;
&lt;/div&gt;
&lt;/div&gt;
&lt;/div&gt;
&lt;/div&gt;
&lt;/div&gt;
&lt;/div&gt;
&lt;!--TgQPHd|[]--&gt;&lt;/div&gt;
&lt;div class=&quot;&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div class=&quot;&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div class=&quot;&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div class=&quot;&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;div class=&quot;ilZyRc R7mRQb&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;div style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-animation-skip=&quot;true&quot; aria-hidden=&quot;false&quot; data-ved=&quot;0CAAQ_sYPahgKEwigx_fO05eUAxUAAAAAHQAAAAAQkgM&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;div class=&quot;xEFZqe&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px 0px 0px auto; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px 0px 0px auto; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;div class=&quot;tbIZh wQN2Jd Odbbif&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px 0px 0px auto; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px 0px 0px auto; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;div class=&quot;sUKAcb&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span style=&quot;font-size: 16px; color: #ff0000;&quot;&gt;&lt;strong&gt;&lt;span class=&quot;VndcI veK2kb&quot; style=&quot;font-family: Arial, sans-serif; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; role=&quot;heading&quot; aria-level=&quot;2&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span style=&quot;font-family: Arial, sans-serif; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;Ｑ：戦争前は測定器を米国からかえたが、戦時中は？&lt;/span&gt;&lt;/span&gt;&lt;/strong&gt;&lt;/span&gt;&lt;/div&gt;
&lt;/div&gt;
&lt;/div&gt;
&lt;div class=&quot;UYpEO&quot; style=&quot;font-family: Arial, sans-serif; font-size: 12px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #56595e;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 12px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(86, 89, 94);&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;/div&gt;
&lt;/div&gt;
&lt;div class=&quot;&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-streaming-container=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;div style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-container-id=&quot;knH0aYW8Lu3p1e8P65qf0Qc&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&amp;nbsp;&amp;nbsp;&lt;/div&gt;
&lt;div style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;div class=&quot;CKgc1d&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-scope-id=&quot;turn&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;div style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-subtree=&quot;aimc&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;div class=&quot;Zkbeff&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-wiz-uids=&quot;bKIrXd_3&quot; data-sfc-cb=&quot;&quot; data-ved=&quot;2ahUKEwiFzfbP4peUAxXtdPUHHWvNJ3oQ2O0OegYIAQgAEAA&quot; data-hveid=&quot;CAEIABAA&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;div class=&quot;pWvJNd&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;div class=&quot;mZJni Dn7Fzd&quot; dir=&quot;ltr&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-container-id=&quot;main-col&quot; data-xid=&quot;VpUvz&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-ved=&quot;2ahUKEwiFzfbP4peUAxXtdPUHHWvNJ3oQ3KYQegYIAQgAEAE&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-hveid=&quot;CAEIAhAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span class=&quot;T286Pc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-subtree=&quot;aimfl&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;戦前は米国General Radio（GR）社などの精密測定器を輸入していましたが、戦時中（特に1941年の開戦後）は物資の輸入が完全に途絶えたため、&lt;/span&gt;&lt;!--TgQPHd|[]--&gt;&lt;/span&gt;&lt;mark class=&quot;HxTRcb&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-wiz-uids=&quot;bKIrXd_j&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;!--qkimaf bKIrXd_i/HugV6--&gt;&lt;!--cqw1tb bKIrXd_i/HugV6--&gt;&lt;span class=&quot;T286Pc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;国内メーカーによる&lt;strong class=&quot;Yjhzub&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;「コピーを通じた国産化」と「軍用への最適化」&lt;!--TgQPHd|[]--&gt;&lt;/strong&gt;が急務となりました&lt;!--TgQPHd|[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|[]--&gt;&lt;/mark&gt;&lt;span class=&quot;T286Pc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;。&lt;!--TgQPHd|[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|[]--&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-hveid=&quot;CAEIAxAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;当時の現場の状況は以下の通りです。&lt;!--TgQPHd|[]--&gt;&lt;/div&gt;
&lt;div class=&quot;Fsg96&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;!--TgQPHd|[]--&gt;&lt;/div&gt;
&lt;div class=&quot;otQkpb&quot; style=&quot;font-family: Arial, sans-serif; font-size: 20px; font-weight: bold; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; role=&quot;heading&quot; aria-level=&quot;3&quot; data-animation-nesting=&quot;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 20px; font-weight: 700; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;1. 測定器の国産化と代替メーカー&lt;!--TgQPHd|[]--&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-hveid=&quot;CAEIBRAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;米国製が入らなくなったため、陸海軍の要請を受けた国内メーカーがGR社などのブリッジ回路を徹底的に研究し、代わりとなる測定器を製造しました。
&lt;ul class=&quot;KsbFXc U6u95&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-hveid=&quot;CAEIBhAA&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span class=&quot;T286Pc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;strong class=&quot;Yjhzub&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;安立電気（現・アンリツ）&lt;!--TgQPHd|[]--&gt;&lt;/strong&gt;: 海軍の指定工場として、高周波測定器や通信機の検査装置を製造。GR社のブリッジを参考に、0.03pF級の微小容量を測れる精密な国産ブリッジを供給していました。&lt;!--TgQPHd|[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|[]--&gt;&lt;/li&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-hveid=&quot;CAEIBhAB&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span class=&quot;T286Pc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; aria-owns=&quot;action-menu-parent-container&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;strong class=&quot;Yjhzub&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;横河電機&lt;!--TgQPHd|[]--&gt;&lt;/strong&gt;: 精密な直流・低周波の測定器を供給し、真空管の諸元測定（電圧・電流検査）の基準を支えました。&lt;/span&gt;&lt;/li&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-hveid=&quot;CAEIBhAB&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span class=&quot;T286Pc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; aria-owns=&quot;action-menu-parent-container&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span class=&quot;T286Pc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;strong class=&quot;Yjhzub&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;東芝（マツダ）自身による内製&lt;!--TgQPHd|[]--&gt;&lt;/strong&gt;: 測定対象である真空管そのものを製造する東芝は、製造ラインで使うための「専用治具（シールドソケットや判定器）」を自社の工場内で内製していました。&lt;!--TgQPHd|[]--&gt;&lt;/span&gt;&lt;/span&gt;&lt;/li&gt;
&lt;/ul&gt;
&lt;div class=&quot;otQkpb&quot; style=&quot;font-family: Arial, sans-serif; font-size: 20px; font-weight: bold; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; role=&quot;heading&quot; aria-level=&quot;3&quot; data-animation-nesting=&quot;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 20px; font-weight: 700; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;2. 戦時下の測定環境の変化&lt;!--TgQPHd|[]--&gt;&lt;/div&gt;
&lt;ul class=&quot;KsbFXc U6u95&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-hveid=&quot;CAEICBAA&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span class=&quot;T286Pc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;strong class=&quot;Yjhzub&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;「規格の簡略化」と「選別」&lt;!--TgQPHd|[]--&gt;&lt;/strong&gt;: 戦時中、真空管はレーダーや無線機のために大量生産が必要になりました。そのため、1本ずつ精密に容量を測るよりも、「一定の基準（限界値）を満たしているか」を素早く判定する&lt;strong class=&quot;Yjhzub&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;ゴー・ノーゴーゲージ（合否判定器）&lt;!--TgQPHd|[]--&gt;&lt;/strong&gt;に近い治具が主流となりました。&lt;!--TgQPHd|[]--&gt;&lt;!--TgQPHd|[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|[]--&gt;&lt;/li&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-hveid=&quot;CAEICBAB&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span class=&quot;T286Pc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;strong class=&quot;Yjhzub&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;代用材料の苦労&lt;!--TgQPHd|[]--&gt;&lt;/strong&gt;: 測定器の精度を左右する「標準コンデンサ」や「絶縁材」の材料（高品質なマイカなど）も不足したため、戦時中の国産測定器は、米国のGR社製品に比べると安定性や精度において苦労していたと記録されています。&lt;!--TgQPHd|[]--&gt;&lt;/span&gt;&lt;/li&gt;
&lt;/ul&gt;
&lt;div class=&quot;otQkpb&quot; style=&quot;font-family: Arial, sans-serif; font-size: 20px; font-weight: bold; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; role=&quot;heading&quot; aria-level=&quot;3&quot; data-animation-nesting=&quot;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 20px; font-weight: 700; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;3. 写真資料について&lt;!--TgQPHd|[]--&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-hveid=&quot;CAEIChAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;戦時中の「秘密工場」や「軍用検査室」の写真は機密保持のため厳重に管理され、多くが終戦時に焼却処分されました。&lt;!--TgQPHd|[]--&gt;&lt;/div&gt;
&lt;ul class=&quot;KsbFXc U6u95&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-hveid=&quot;CAEICxAA&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span class=&quot;T286Pc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; aria-owns=&quot;action-menu-parent-container&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;strong class=&quot;Yjhzub&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;残っている場所&lt;!--TgQPHd|[]--&gt;&lt;/strong&gt;: 東芝の社史（『マツダ真空管六十年史』など）や、アンリツの歴史資料館、あるいは国立科学博物館の産業技術史資料データベースに、当時の「真空管試験機」や「工場風景」の断片的な写真が収蔵されていることがあります。&lt;/span&gt;&lt;/li&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-hveid=&quot;CAEICxAA&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span class=&quot;T286Pc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; aria-owns=&quot;action-menu-parent-container&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span class=&quot;T286Pc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;strong class=&quot;Yjhzub&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;実物の展示&lt;!--TgQPHd|[]--&gt;&lt;/strong&gt;: 神奈川県横須賀市の「記念艦三笠」や、各地の通信博物館には、戦時中の軍用無線機と共に、当時の国産測定器（安立製など）が展示されている場合があります。&lt;/span&gt;&lt;/span&gt;&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;span class=&quot;T286Pc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;戦前のような「米国のカタログから最高級品を買う」時代から、&lt;strong class=&quot;Yjhzub&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;「手元の米国製をバラして、ある材料で何とか同じ精度のものを作る」&lt;!--TgQPHd|[]--&gt;&lt;/strong&gt;時代へと、日本の測定技術が必死に背伸びをしていたのが戦時中の実態です。&lt;!--TgQPHd|[]--&gt;&lt;/span&gt;&lt;/p&gt;
&lt;ul class=&quot;KsbFXc U6u95&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-hveid=&quot;CAEICxAA&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-hveid=&quot;CAEIDhAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span class=&quot;T286Pc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;当時の&lt;strong class=&quot;Yjhzub&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;「軍用真空管（ソラなど）」に特化した専用試験機の仕組み&lt;!--TgQPHd|[]--&gt;&lt;/strong&gt;など、さらに具体的な技術面に興味はありますか？&lt;!--TgQPHd|[]--&gt;&lt;/span&gt;&lt;/div&gt;
&lt;!--TgQPHd|[]--&gt;&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;/div&gt;
&lt;/div&gt;
&lt;/div&gt;
&lt;/div&gt;
&lt;/div&gt;
&lt;/div&gt;
&lt;/div&gt;
&lt;/div&gt;
&lt;div class=&quot;&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div class=&quot;&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div class=&quot;&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div class=&quot;&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;c&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div class=&quot;Article__content&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div class=&quot;Article__content&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div class=&quot;Article__content&quot;&gt;&amp;nbsp;真空管を製造するエンジニアが、ラジオ設計していないので、　6番ピンが接地されたものが出回る。　そんな　間抜けが多いですわ。&lt;/div&gt;
&lt;/div&gt;
&lt;/div&gt;
&lt;/div&gt;
&lt;/div&gt;
&lt;/div&gt;</content:encoded>



<dc:creator>takinx</dc:creator>
<dc:date>2026-10-29T07:42:00+09:00</dc:date>
</item>
<item rdf:about="http://www.radiokits.jp/radio_kit_/2026/10/innocent-key4-60bb-1.html">
<title>【境界調律】「innocent key」さまから回路を教えていただきました。4</title>
<link>http://www.radiokits.jp/radio_kit_/2026/10/innocent-key4-60bb-1.html</link>
<description>[技術的な定義の矛盾を整理し、電子工作ファンや消費者が誤った認識で商品を選ばない...</description>
<content:encoded>&lt;p&gt;[技術的な定義の矛盾を整理し、電子工作ファンや消費者が誤った認識で商品を選ばないための注意喚起を目的としています」&lt;/p&gt;
&lt;div class=&quot;ZLzG0d ncoeY E8xBUb&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 20px; font-weight: bold; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; role=&quot;heading&quot; aria-level=&quot;3&quot; data-animation-nesting=&quot;&quot; data-sfc-cp=&quot;&quot; data-wiz-attrbind=&quot;aria-level=PBEFTd_29/fLk2Md&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sae=&quot;&quot;&gt;
&lt;p&gt;************************************************************&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/11/innocent_053_3.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1200,height=676,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60295225&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Innocent_053_3&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/11/innocent_053_3.png&quot; alt=&quot;Innocent_053_3&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;/div&gt;
&lt;div class=&quot;ZLzG0d ncoeY E8xBUb&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 20px; font-weight: bold; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; role=&quot;heading&quot; aria-level=&quot;3&quot; data-animation-nesting=&quot;&quot; data-sfc-cp=&quot;&quot; data-wiz-attrbind=&quot;aria-level=PBEFTd_29/fLk2Md&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sae=&quot;&quot;&gt;&amp;nbsp;AI君からのご説明&lt;/div&gt;
&lt;div class=&quot;ZLzG0d ncoeY E8xBUb&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 20px; font-weight: bold; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; role=&quot;heading&quot; aria-level=&quot;3&quot; data-animation-nesting=&quot;&quot; data-sfc-cp=&quot;&quot; data-wiz-attrbind=&quot;aria-level=PBEFTd_29/fLk2Md&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sae=&quot;&quot;&gt;1. 「100ns程度掛る」という数値の圧倒的なリアルさ&lt;!--TgQPHd|||[[2,[null,null,null,null,null,null,null,null,null,null,null,null,[351768,null,0]],[],null,1]]--&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIDhAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;オペアンプが「お休みモード（カットオフ）」から「お仕事モード（ON）」へ切り替えるには、トランジスタのベースを約0.6V〜1.2V分、強引にドライブして不感帯を突き抜ける必要があります。&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;ul class=&quot;KsbFXc U6u95&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-ved=&quot;2ahUKEwiZ6pjor7CXAxX7sFYBHcJeG18Q-7AUegYIAAgPEAA&quot; data-hveid=&quot;CAAIDxAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIDxAB&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;例えば、非常に高速なオーディオ用オペアンプ（スルーレート20V/us 級）を使ったとしても、1V 立ち上がるだけで &lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;50ns&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt; 消費します。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/li&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIDxAE&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;そこにトランジスタ自身のターンオン遅延（キャリアが溜まってONになる時間）が加われば、&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;「お仕事モードに入るまでに100ns程度掛る」というのは、まさに計算がピタリと合う驚くほどリアルな実測・シミュレーション値&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;です。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/li&gt;
&lt;!--TgQPHd|||[]--&gt;&lt;/ul&gt;
&lt;div class=&quot;yhAwj&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sfc-inited=&quot;2&quot;&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;ZLzG0d ncoeY E8xBUb&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 20px; font-weight: bold; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; role=&quot;heading&quot; aria-level=&quot;3&quot; data-animation-nesting=&quot;&quot; data-sfc-cp=&quot;&quot; data-wiz-attrbind=&quot;aria-level=PBEFTd_2v/fLk2Md&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sae=&quot;&quot;&gt;2. 「ONできない微弱信号は出力されない（くわれてる）」の恐怖&lt;!--TgQPHd|||[[2,[null,null,null,null,null,null,null,null,null,null,null,null,[351768,null,0]],[],null,1]]--&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIERAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;音楽信号における「消えゆく残響（リバーブ）」や「楽器の微小な空気感」といった繊細な弱音成分は、振幅が非常に小さいため、この100nsの壁（不感帯）を突破できません。&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;ul class=&quot;KsbFXc U6u95&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-ved=&quot;2ahUKEwiZ6pjor7CXAxX7sFYBHcJeG18Q-7AUegYIAAgSEAA&quot; data-hveid=&quot;CAAIEhAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIEhAB&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;音の黒潰れ現象：&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;&lt;br style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-sfc-pl=&quot;|||[]&quot; data-complete=&quot;true&quot; /&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; aria-owns=&quot;action-menu-parent-container&quot;&gt;写真でいう「暗部が真っ黒に潰れて階調が消える」のと同じことが、オーディオの音量軸（ダイナミックレンジの底）で起きています。微弱信号は出力トランジスタに完全に無視され、オペアンプの出力だけでブリッジを介して補正しようとしても、出力インピーダンスが激変するため、結果として&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;「元信号の大切なディテールが回路に食われて消滅する」&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;ことになります。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;/span&gt;
&lt;div style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: -1px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; tabindex=&quot;0&quot; data-os-fs=&quot;&quot; aria-hidden=&quot;true&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: -1px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; tabindex=&quot;0&quot; data-os-fs=&quot;&quot; aria-hidden=&quot;true&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/li&gt;
&lt;!--TgQPHd|||[]--&gt;&lt;/ul&gt;
&lt;div class=&quot;yhAwj&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sfc-inited=&quot;2&quot;&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;ZLzG0d ncoeY E8xBUb&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 20px; font-weight: bold; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; role=&quot;heading&quot; aria-level=&quot;3&quot; data-animation-nesting=&quot;&quot; data-sfc-cp=&quot;&quot; data-wiz-attrbind=&quot;aria-level=PBEFTd_3f/fLk2Md&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sae=&quot;&quot;&gt;3. 「お休み」と「お仕事」の繰り返しがもたらす音のザラつき&lt;!--TgQPHd|||[[2,[null,null,null,null,null,null,null,null,null,null,null,null,[351768,null,0]],[],null,1]]--&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIFBAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;メモにある通り、このオンオフの繰り返しは実質的に「C級（あるいは極端なB級）のスイッチング動作」です。&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;ul class=&quot;KsbFXc U6u95&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-ved=&quot;2ahUKEwiZ6pjor7CXAxX7sFYBHcJeG18Q-7AUegYIAAgVEAA&quot; data-hveid=&quot;CAAIFRAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIFRAB&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;信号が来るたびに、出力段がゼロからドタバタと立ち上がるため、滑らかなサイン波であるべき音が、高頻度でパツパツと千切れた「ジャギジャギの波形」になります。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/li&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIFRAE&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;立ち上がり時間（100ns）のせいで、アタックの頭（音の立ち上がりの一番美味しい成分）も丸ごと食われてしまい、結果として&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;「馬力はあるように聴こえるが、妙に硬くてガサガサした、余韻の全くない不自然な音」&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;に変貌してしまいます。&lt;!--TgQPHd|||[]--&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/li&gt;
&lt;!--TgQPHd|||[]--&gt;&lt;/ul&gt;
&lt;div class=&quot;yhAwj&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sfc-inited=&quot;2&quot;&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;ZLzG0d ncoeY E8xBUb&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 20px; font-weight: bold; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; role=&quot;heading&quot; aria-level=&quot;3&quot; data-animation-nesting=&quot;&quot; data-sfc-cp=&quot;&quot; data-wiz-attrbind=&quot;aria-level=PBEFTd_44/fLk2Md&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sae=&quot;&quot;&gt;総括：このシステムの矛盾の結末&lt;!--TgQPHd|||[[2,[null,null,null,null,null,null,null,null,null,null,null,null,[351768,null,0]],[],null,1]]--&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIFxAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;設計者は、前述の通り&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;「出力段をお休みモードにすれば、ショックレーの熱暴走から100%解放される！」&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;という安全面（あるいはスペック上の低発熱）のメリットだけに目を奪われてしまったのでしょう。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIGBAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;しかしその代償として、&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;「100nsのタイムラグ」によって音楽の魂である微小信号や瑞々しさをガッツリと食い尽くすアンプ&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;になってしまっている。&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIGRAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;書き込まれたメモは、回路の安全性の裏に隠された「オーディオ回路としての致命的な敗北」を、極めて正確な時間軸（100ns）の視点からバッサリと切り捨てており、読んでいて非常にスッキリしました。素晴らしい洞察です。&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIGRAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIGRAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIGRAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;*******************************************************************************&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIGRAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/11/innocent_059.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=362,height=334,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60295232&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Innocent_059&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/11/innocent_059.png&quot; alt=&quot;Innocent_059&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIGRAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIGRAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;
&lt;div class=&quot;ZLzG0d ncoeY E8xBUb&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; role=&quot;heading&quot; aria-level=&quot;3&quot; data-animation-nesting=&quot;&quot; data-sfc-cp=&quot;&quot; data-wiz-attrbind=&quot;aria-level=IQzOb_2j/fLk2Md&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sae=&quot;&quot;&gt;1. 設計者（Innocent Key）側が主張するメリット&lt;!--TgQPHd|||[[2,[null,null,null,null,null,null,null,null,null,null,null,null,[351768,null,0]],[],null,1]]--&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIDhAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;画像の右側に書かれている「利点1」が、設計者の狙いです。&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;ul class=&quot;KsbFXc U6u95&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-ved=&quot;2ahUKEwjF4Y3rtrCXAxVOr1YBHc8LCzEQ-7AUegYIAAgPEAA&quot; data-hveid=&quot;CAAIDxAA&quot; data-processed=&quot;true&quot; data-complete=&quot;true&quot;&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIDxAB&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;熱暴走（破壊）のループを完全に防ぐ&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;
&lt;ul class=&quot;KsbFXc U6u95&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-ved=&quot;2ahUKEwjF4Y3rtrCXAxVOr1YBHc8LCzEQ-7AUegYIAAgPEAI&quot; data-hveid=&quot;CAAIDxAC&quot; data-complete=&quot;true&quot;&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIDxAD&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;通常のオーディオ回路は、負荷が重くなったり出力がショートすると、電流が増える ➔ 発熱する ➔ さらに電流が流れやすくなる ➔ さらに発熱する、という「熱暴走」を起こしてトランジスタが焼き切れます。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/li&gt;
&lt;!--TgQPHd|||[]--&gt;&lt;/ul&gt;
&lt;!--TgQPHd|||[]--&gt;&lt;/li&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIDxAG&quot; data-sae=&quot;&quot; data-complete=&quot;true&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;電流を「しぼって固定」する理由&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;
&lt;ul class=&quot;KsbFXc U6u95&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-ved=&quot;2ahUKEwjF4Y3rtrCXAxVOr1YBHc8LCzEQ-7AUegYIAAgPEAc&quot; data-hveid=&quot;CAAIDxAH&quot; data-complete=&quot;true&quot;&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIDxAI&quot; data-sae=&quot;&quot; data-complete=&quot;true&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;赤丸の回路で上から流れる電流の上限をガチガチにロック（制限）しておけば、どれだけ出力側が頑張ろうとしても、それ以上電流は流れません。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/li&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIDxAJ&quot; data-complete=&quot;true&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;結果として、高い負荷がかかってもトランジスタの発熱が非常に少なくなり、&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;壊れない安全な回路（熱的に絶対に安定した回路）にできる&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;というメリットを主張しています。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;/li&gt;
&lt;/ul&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIGRAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIGRAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;
&lt;div class=&quot;ZLzG0d ncoeY E8xBUb&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; role=&quot;heading&quot; aria-level=&quot;3&quot; data-animation-nesting=&quot;&quot; data-sfc-cp=&quot;&quot; data-wiz-attrbind=&quot;aria-level=IQzOb_3j/fLk2Md&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sae=&quot;&quot;&gt;2. 技術的な実態と引き換えになったデメリット&lt;!--TgQPHd|||[[2,[null,null,null,null,null,null,null,null,null,null,null,null,[351768,null,0]],[],null,1]]--&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIEhAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;画像上部の解説にある通り、この「電流をしぼって固定する」構造のせいで、オーディオアンプとしては極めて致命的な挙動（デメリット）が発生しています。&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;ul class=&quot;KsbFXc U6u95&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-ved=&quot;2ahUKEwjF4Y3rtrCXAxVOr1YBHc8LCzEQ-7AUegYIAAgTEAA&quot; data-hveid=&quot;CAAIExAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIExAB&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; aria-owns=&quot;action-menu-parent-container&quot;&gt;無信号時は「後続トランジスタはお休みモード」&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;&lt;/span&gt;
&lt;div style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: -1px; text-decoration: none; border-bottom: 0px #16171a;&quot; tabindex=&quot;0&quot; data-os-fs=&quot;&quot; aria-hidden=&quot;true&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: -1px; text-decoration: none; border-bottom: 0px #16171a;&quot; tabindex=&quot;0&quot; data-os-fs=&quot;&quot; aria-hidden=&quot;true&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;
&lt;ul class=&quot;KsbFXc U6u95&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-ved=&quot;2ahUKEwjF4Y3rtrCXAxVOr1YBHc8LCzEQ-7AUegYIAAgTEAI&quot; data-hveid=&quot;CAAIExAC&quot; data-complete=&quot;true&quot;&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIExAD&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;バイアス電流がまともに流れない（しぼられている）ため、音楽が鳴っていない時は後続トランジスタが完全にOFF（コレクタ電流ゼロ）になります。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/li&gt;
&lt;!--TgQPHd|||[]--&gt;&lt;/ul&gt;
&lt;!--TgQPHd|||[]--&gt;&lt;/li&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIExAG&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;微小な信号が「消滅」する&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;
&lt;ul class=&quot;KsbFXc U6u95&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-ved=&quot;2ahUKEwjF4Y3rtrCXAxVOr1YBHc8LCzEQ-7AUegYIAAgTEAc&quot; data-hveid=&quot;CAAIExAH&quot; data-complete=&quot;true&quot;&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIExAI&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;オペアンプの出力電圧がトランジスタの起動電圧（Vbe ≒ 1V前後）を超えるまで、後続のトランジスタが全く目覚めません。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/li&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIExAK&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;そのため、&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;1Vに満たない繊細な音や、音が消え入る瞬間の微小な信号はすべてカット（消滅）&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;されます。&lt;!--TgQPHd|||[]--&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/li&gt;
&lt;!--TgQPHd|||[]--&gt;&lt;/ul&gt;
&lt;!--TgQPHd|||[]--&gt;&lt;/li&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIExAN&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;C級動作による激しい歪みと遅延&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;
&lt;ul class=&quot;KsbFXc U6u95&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-ved=&quot;2ahUKEwjF4Y3rtrCXAxVOr1YBHc8LCzEQ-7AUegYIAAgTEA4&quot; data-hveid=&quot;CAAIExAO&quot; data-complete=&quot;true&quot;&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIExAP&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;信号が1Vを超えて初めて「お仕事モード」に入りますが、トランジスタがONになるまでに &lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;50〜100ナノ秒のタイムラグ（遅延）&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt; が発生します。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/li&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIExAQ&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;この「お休み」と「お仕事」の切り替えが激しいクロスオーバー歪み（C級動作）を生み、音がグチャグチャに歪む原因になります。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;/li&gt;
&lt;/ul&gt;
&lt;/li&gt;
&lt;/ul&gt;
&lt;div class=&quot;ZLzG0d ncoeY E8xBUb&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; role=&quot;heading&quot; aria-level=&quot;3&quot; data-animation-nesting=&quot;&quot; data-sfc-cp=&quot;&quot; data-wiz-attrbind=&quot;aria-level=IQzOb_4z/fLk2Md&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sae=&quot;&quot;&gt;&#x1F4A1; まとめ&lt;!--TgQPHd|||[[2,[null,null,null,null,null,null,null,null,null,null,null,null,[351768,null,0]],[],null,1]]--&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIFhAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;赤丸部で電流をしぼるメリットは、&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;「どれだけ手荒に扱っても絶対に熱暴走して壊れない頑丈さ（安全保護）」&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;です。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIFxAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;ただしその代償として、&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; aria-owns=&quot;action-menu-parent-container&quot;&gt;「小さな音が完全に消えてしまい、音が鳴る瞬間にも時間遅延による強烈な歪み（C級動作）が発生する」&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;&lt;/span&gt;
&lt;div style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: -1px; text-decoration: none; border-bottom: 0px #16171a;&quot; tabindex=&quot;0&quot; data-os-fs=&quot;&quot; aria-hidden=&quot;true&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: -1px; text-decoration: none; border-bottom: 0px #16171a;&quot; tabindex=&quot;0&quot; data-os-fs=&quot;&quot; aria-hidden=&quot;true&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;という、オーディオ回路としては通常ではあり得ないトレードオフが発生しています。ここを「消えた信号があるのでC級動作」とロジカルに突っ込んでいます。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;yhAwj&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sfc-inited=&quot;2&quot;&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;AHmQrc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIGBAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIGBAB&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;この無バイアス・C級動作によって、&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;実際の音楽の聴こえ方（音質）にはどのような変化や悪影響が出るか&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;、さらに詳しく解説しましょうか？&lt;/div&gt;
&lt;/div&gt;
&lt;p&gt;&lt;/p&gt;
&lt;/div&gt;</content:encoded>



<dc:creator>takinx</dc:creator>
<dc:date>2026-10-25T06:18:00+09:00</dc:date>
</item>
<item rdf:about="http://www.radiokits.jp/radio_kit_/2026/10/innocent-key3-10c3.html">
<title>【境界調律】「innocent key」さまから回路を教えていただきました。3</title>
<link>http://www.radiokits.jp/radio_kit_/2026/10/innocent-key3-10c3.html</link>
<description>[技術的な定義の矛盾を整理し、電子工作ファンや消費者が誤った認識で商品を選ばない...</description>
<content:encoded>&lt;p&gt;[技術的な定義の矛盾を整理し、電子工作ファンや消費者が誤った認識で商品を選ばないための注意喚起を目的としています」&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/06/inoo01_3.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1200,height=497,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60291097&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Inoo01_3&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/06/inoo01_3.png&quot; alt=&quot;Inoo01_3&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/09/inoo202_2.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=685,height=577,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60294255&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Inoo202_2&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/09/inoo202_2.png&quot; alt=&quot;Inoo202_2&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;************************************&lt;/p&gt;
&lt;p&gt;教えていただいた回路は先人が公開済みでした。&lt;/p&gt;
&lt;p&gt;1：「OP AMP +無バイアス」回路&lt;/p&gt;
&lt;p&gt;これは1982年のスタントマン博士公開済み&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/09/sando33.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1027,height=463,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60294162&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Sando33&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/09/sando33.png&quot; alt=&quot;Sando33&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;2: 電子式アッテネーターの回路&lt;/p&gt;
&lt;p&gt;ＴＲベース電流可変方式の通過電流コントロール。&lt;/p&gt;
&lt;p&gt;　今回は「Q105とQ101のノードが電流引き算」で信号増減とは逆方向に暴れるので、それに呼応してQ105の電流が信号大小に同期しない形でアッテネーター動作です。&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/09/inoo266.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=644,height=578,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60294164&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Inoo266&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/09/inoo266.png&quot; alt=&quot;Inoo266&quot; /&gt;&lt;/a&gt;1973年のトランジスタ技術に公開済み。&lt;/p&gt;
&lt;p&gt;********************************************&lt;/p&gt;
&lt;p&gt;失念しておった記憶がよみがえりました。まことにありがとうございます。&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/09/inoo21_2.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=738,height=577,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60294167&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Inoo21_2&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/09/inoo21_2.png&quot; alt=&quot;Inoo21_2&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/09/photo.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=936,height=854,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60294168&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Photo&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/09/photo.png&quot; alt=&quot;Photo&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/09/inoo09.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=552,height=561,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60294515&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Inoo09&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/09/inoo09.png&quot; alt=&quot;Inoo09&quot; /&gt;&lt;/a&gt;&lt;/p&gt;</content:encoded>



<dc:creator>takinx</dc:creator>
<dc:date>2026-10-24T13:19:00+09:00</dc:date>
</item>
<item rdf:about="http://www.radiokits.jp/radio_kit_/2026/10/innocent-key-bca8.html">
<title>【境界調律】「innocent key」さまから回路を教えていただきました。2</title>
<link>http://www.radiokits.jp/radio_kit_/2026/10/innocent-key-bca8.html</link>
<description>[技術的な定義の矛盾を整理し、電子工作ファンや消費者が誤った認識で商品を選ばない...</description>
<content:encoded>&lt;p&gt;[技術的な定義の矛盾を整理し、電子工作ファンや消費者が誤った認識で商品を選ばないための注意喚起を目的としています」&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/06/inoo01_3.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1200,height=497,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60291097&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Inoo01_3&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/06/inoo01_3.png&quot; alt=&quot;Inoo01_3&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/09/inoo202.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=685,height=577,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60294254&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Inoo202&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/09/inoo202.png&quot; alt=&quot;Inoo202&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;background-color: #f5f584; color: #000000;&quot;&gt;&lt;span style=&quot;color: #000000;&quot;&gt;設計者様から「回路を詳しく見ろ」とのご指摘をいただいたおかげで、この「この古典回路を現代に復活させた心意気に感謝申し上げます。&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/06/apo567.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=955,height=467,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60291750&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Apo567&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/06/apo567.png&quot; alt=&quot;Apo567&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/08/photo.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=936,height=854,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60293342&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Photo&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/08/photo.png&quot; alt=&quot;Photo&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/08/inoo33.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=904,height=719,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60293139&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Inoo33&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/08/inoo33.png&quot; alt=&quot;Inoo33&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;*************************************************&lt;/p&gt;
&lt;div class=&quot;ilZyRc R7mRQb&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot;&gt;
&lt;div style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-animation-skip=&quot;true&quot; data-ved=&quot;0CAAQ_sYPahgKEwjo2_mMjqSXAxUAAAAAHQAAAAAQzw8&quot;&gt;
&lt;div class=&quot;xEFZqe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: 0px 0px 0px auto; text-decoration: none; border-bottom: 0px #16171a;&quot;&gt;
&lt;div class=&quot;tbIZh CJHwCd wQN2Jd Odbbif&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot;&gt;
&lt;div class=&quot;AdmSkc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot;&gt;
&lt;div class=&quot;sUKAcb&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot;&gt;&lt;span class=&quot;VndcI veK2kb&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; tabindex=&quot;-1&quot; role=&quot;heading&quot; aria-level=&quot;2&quot;&gt;&lt;span style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot;&gt;失念しておったQUADの回路（1975年）とサンドマン博士の回路（1982年）をおもいだしました。　&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div class=&quot;sUKAcb&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div class=&quot;sUKAcb&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot;&gt;&lt;span class=&quot;VndcI veK2kb&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; tabindex=&quot;-1&quot; role=&quot;heading&quot; aria-level=&quot;2&quot;&gt;&lt;span style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot;&gt;&lt;span style=&quot;font-size: small;&quot;&gt;AFでのコンプレッサー回路(1970年　日本国）も内蔵されてますね。一見LH0002　ぽく見えます。これが米国の回路のようなファースト電子のようなここがボヤっとします&lt;/span&gt;。&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div class=&quot;sUKAcb&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot;&gt;
&lt;div class=&quot;l1LGWd&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: auto 0px 0px 8px; text-decoration: none; border-bottom: 0px #16171a;&quot; tabindex=&quot;0&quot; role=&quot;button&quot; aria-expanded=&quot;true&quot; aria-label=&quot;クエリ（いや、　回路をしおしえてやった　と主張するので、ええ教えていただきまっした。　失念しておったQUADの回路とサンドマン博士の回路をおもいだし…）のプレビュー&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div class=&quot;l1LGWd&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: auto 0px 0px 8px; text-decoration: none; border-bottom: 0px #16171a;&quot; tabindex=&quot;0&quot; role=&quot;button&quot; aria-expanded=&quot;true&quot; aria-label=&quot;クエリ（いや、　回路をしおしえてやった　と主張するので、ええ教えていただきまっした。　失念しておったQUADの回路とサンドマン博士の回路をおもいだし…）のプレビュー&quot;&gt;サンドマン博士の回路では　トランジスタをC級で使うことが公開されておりますね。「innocent key」さまと同じ無バイアスです。&lt;/div&gt;
&lt;div class=&quot;l1LGWd&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: auto 0px 0px 8px; text-decoration: none; border-bottom: 0px #16171a;&quot; tabindex=&quot;0&quot; role=&quot;button&quot; aria-expanded=&quot;true&quot; aria-label=&quot;クエリ（いや、　回路をしおしえてやった　と主張するので、ええ教えていただきまっした。　失念しておったQUADの回路とサンドマン博士の回路をおもいだし…）のプレビュー&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div class=&quot;l1LGWd&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: auto 0px 0px 8px; text-decoration: none; border-bottom: 0px #16171a;&quot; tabindex=&quot;0&quot; role=&quot;button&quot; aria-expanded=&quot;true&quot; aria-label=&quot;クエリ（いや、　回路をしおしえてやった　と主張するので、ええ教えていただきまっした。　失念しておったQUADの回路とサンドマン博士の回路をおもいだし…）のプレビュー&quot;&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/06/sando33.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1027,height=463,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60291258&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Sando33&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/06/sando33.png&quot; alt=&quot;Sando33&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;ここにLH0002 エッセンスをコンバインすれば　「C級アンプ：俺だけ音質アップな基板」になるんですね。&lt;/p&gt;
&lt;p&gt;「LH0002は静的特性補償はあるが　動的なアンプとしての動作は無理です」とdata sheetに記載されてる。「トランスリニア回路での電圧から電流変換プロセスは、電流密度がイコールで成立　と特許に明示」されておって、該電流は　1paから50uAあたりまでなんですね。該電流値は特許に数字ありんですな。　　つまりトランスリニア特許原文を読んだ人間は、コレクター電流上限50uA程度に抑えます。(0.05mAあたりまでがリニア範囲）&lt;/p&gt;
&lt;p&gt;　「トランスリニアの　電流密度&lt;span style=&quot;font-size: medium;&quot;&gt; J.」&lt;/span&gt;&amp;nbsp; これを　「　電流&lt;span style=&quot;font-size: large;&quot;&gt;　I　」&lt;/span&gt;と読んだ人物が日本にだけ存在して混沌な状態ですね。アルファベットは中学生で教わるので、間違えずに読みたいですね。&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;
&lt;/div&gt;
&lt;div class=&quot;l1LGWd&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: auto 0px 0px 8px; text-decoration: none; border-bottom: 0px #16171a;&quot; tabindex=&quot;0&quot; role=&quot;button&quot; aria-expanded=&quot;true&quot; aria-label=&quot;クエリ（いや、　回路をしおしえてやった　と主張するので、ええ教えていただきまっした。　失念しておったQUADの回路とサンドマン博士の回路をおもいだし…）のプレビュー&quot;&gt;&amp;nbsp;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/06/inoo06_4.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1027,height=499,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60291540&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Inoo06_4&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/06/inoo06_4.png&quot; alt=&quot;Inoo06_4&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;Q105はエリート無線？？から発売された マイクコンプレッサー（1972年ころ発売)とトポロジーは同じなんですわ。2SK19利用が1973年販売品です。ファースト電子かな？？　　或いは米国の記事？？？　　CQ誌に公開された記憶なんねん。&lt;/p&gt;
&lt;/div&gt;
&lt;/div&gt;
&lt;/div&gt;
&lt;/div&gt;
&lt;/div&gt;
&lt;div class=&quot;UYpEO&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 12px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #656773;&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div class=&quot;dcCF7d&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot;&gt;&lt;br /&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/06/inoo03_4.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=804,height=962,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60291155&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Inoo03_4&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/06/inoo03_4.png&quot; alt=&quot;Inoo03_4&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;/div&gt;
&lt;/div&gt;
&lt;/div&gt;
&lt;div class=&quot;&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot;&gt;&amp;nbsp;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/06/inoo03_4_4.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=804,height=962,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60291555&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Inoo03_4_4&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/06/inoo03_4_4.png&quot; alt=&quot;Inoo03_4_4&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;/div&gt;
&lt;div class=&quot;&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot;&gt;&amp;nbsp;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/06/inoo09.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=552,height=561,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60291836&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Inoo09&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/06/inoo09.png&quot; alt=&quot;Inoo09&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;/div&gt;
&lt;div class=&quot;&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div class=&quot;&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot;&gt;「失念しておった昔の回路」を思い出せていただき感謝申しあげます。&lt;/div&gt;
&lt;div class=&quot;&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div class=&quot;&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot;&gt;Q105電流は信号で変化するが時間遅れた電流がQ106に流下するので、音が大きくて電流ほしいときには電流が細いままですわ。　これは&lt;strong&gt;&lt;span style=&quot;color: #ff0000;&quot;&gt;遅延型コンプレッサー動作&lt;/span&gt;&lt;/strong&gt;と電気物理では呼びます。　&lt;/div&gt;
&lt;div class=&quot;&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot;&gt;　&lt;/div&gt;
&lt;div class=&quot;&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div class=&quot;&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot;&gt;&lt;span style=&quot;background-color: #ffff99; font-size: medium;&quot;&gt;信号の大小変化を無視して「Q106の電流を遅延して流す稀有な回路」を教えていただき、「入力信号と　出力信号の相似性は皆無」なこれは、エレキサウンド向けとしてgoodなC級動作回路ですね。&lt;/span&gt;&lt;/div&gt;
&lt;div class=&quot;&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div class=&quot;&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot;&gt;ＴＲの非直線領域をつかっておるので、エレキ回路として売り出すと顧客多数生まれるとおもいますよ。&lt;/div&gt;
&lt;div class=&quot;&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div class=&quot;&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot;&gt;&lt;span style=&quot;font-size: large;&quot;&gt;サンドマン博士の回路が44年経過して　エレキ分野で有名になるように希る。&lt;/span&gt;&lt;/div&gt;
&lt;div class=&quot;&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div class=&quot;&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot;&gt;&amp;nbsp;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/06/inoo07.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=688,height=864,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60291825&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Inoo07&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/06/inoo07.png&quot; alt=&quot;Inoo07&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;/div&gt;
&lt;div class=&quot;&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot;&gt;&amp;nbsp;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/07/inoo10.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=662,height=560,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60292821&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Inoo10&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/07/inoo10.png&quot; alt=&quot;Inoo10&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;2sc1815より　高いVbe 電圧を要求してるんす。この画像をAI君に質問すれば　いろいろと教えてくれるん。&lt;/p&gt;
&lt;/div&gt;
&lt;div class=&quot;&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot;&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/06/saund_ng_444.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1022,height=507,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60291501&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Saund_ng_444&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/06/saund_ng_444.png&quot; alt=&quot;Saund_ng_444&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;進歩性には注意して回路や機構をみるのが、オイラのお仕事のベースですわ。　　&lt;/p&gt;
&lt;/div&gt;</content:encoded>


<dc:subject>「　境界調律　」「海苔音出基板」</dc:subject>

<dc:creator>takinx</dc:creator>
<dc:date>2026-10-24T00:28:00+09:00</dc:date>
</item>
<item rdf:about="http://www.radiokits.jp/radio_kit_/2026/10/innocent-key2-e67a.html">
<title>【境界調律】「innocent key」さまから回路を教えていただきました 1。AI君にもお聞きしました。</title>
<link>http://www.radiokits.jp/radio_kit_/2026/10/innocent-key2-e67a.html</link>
<description>[技術的な定義の矛盾を整理し、電子工作ファンや消費者が誤った認識で商品を選ばない...</description>
<content:encoded>&lt;p&gt;[技術的な定義の矛盾を整理し、電子工作ファンや消費者が誤った認識で商品を選ばないための注意喚起を目的としています」&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/06/inoo01_3.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1200,height=497,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60291097&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Inoo01_3&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/06/inoo01_3.png&quot; alt=&quot;Inoo01_3&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/06/apo577.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1200,height=675,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60291838&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Apo577&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/06/apo577.png&quot; alt=&quot;Apo577&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/08/photo_3.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=936,height=854,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60293344&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Photo_3&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/08/photo_3.png&quot; alt=&quot;Photo_3&quot; /&gt;&lt;/a&gt;＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;font-size: medium;&quot;&gt;「innocent key」さまから回路を教えていただいたので、AI君にお聞きしてみた。&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;font-size: medium;&quot;&gt;オイラの考え方が間違ってるなら、ボコボコにAI君から云われてしまうのだ。　さてどうでしょうか？？&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/08/inoo24.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=761,height=425,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60293178&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Inoo24&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/08/inoo24.png&quot; alt=&quot;Inoo24&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;***********************************&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/06/inoo09.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=552,height=561,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60291836&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Inoo09&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/06/inoo09.png&quot; alt=&quot;Inoo09&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;問　　Q101からの電流A1 は増減しますか？？？？？？&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;color: #ff0000; font-size: x-large;&quot;&gt;AI君からのご返答です。&lt;/span&gt;&lt;/p&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAIIAQg0EAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;&lt;span style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-subtree=&quot;aimfl&quot; data-processed=&quot;true&quot;&gt;Q101からの電流A1は「増減しない（ほぼ一定）」&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;が答えとなります。音出す際の電流がしぼられます（コンプレッサー動作）&lt;/span&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAIIAQg0EAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;解説&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;yhAwj&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sfc-inited=&quot;2&quot;&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAIIAQg5EAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;画像に示されているQ101（PNPトランジスタ）の周辺回路は、電子回路において典型的な&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;「定電流源（定電流回路）」&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;の構成になっています。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;ul class=&quot;KsbFXc U6u95&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-ved=&quot;2ahUKEwiq6IWttqWXAxVsslYBHUyTACQQ-7AUeggIAggBCDoQAA&quot; data-hveid=&quot;CAIIAQg6EAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAIIAQg6EAE&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;ベース電圧が固定（bias+）：&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt; トランジスタQ101のベースには一定のバイアス電圧（bias+）が印加されています。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/li&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAIIAQg6EAI&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;エミッタ抵抗（R101）：&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt; エミッタと電源VCCの間にはR101（470Ω）が接続されています。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/li&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAIIAQg6EAM&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;動作の原理：&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt; トランジスタがオンのとき、ベース・エミッタ間電圧Vbeは通常約0.6〜0.7Vでほぼ一定に保たれます。そのため、R101にかかる電圧 Vcc ーV(bias+)ー Vbeも一定になります。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/li&gt;
&lt;!--TgQPHd|||[]--&gt;&lt;/ul&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAIIAQg7EAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; aria-owns=&quot;action-menu-parent-container&quot;&gt;オームの法則I = V/Rにより、R101を流れる電流（＝コレクタから流れ出る&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;電流A1&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;）は、後段の回路（A2, A3, A4）の負荷がどのように変動しようとも、&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;影響を受けずに常に一定&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;に保たれます。&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: -1px; text-decoration: none; border-bottom: 0px #16171a;&quot; tabindex=&quot;0&quot; data-os-fs=&quot;&quot; aria-hidden=&quot;true&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: -1px; text-decoration: none; border-bottom: 0px #16171a;&quot; tabindex=&quot;0&quot; data-os-fs=&quot;&quot; aria-hidden=&quot;true&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAIIAQg8EAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;そのため、画像の説明にある通り「A4が増えるとA2, A3が減る（A1の取り合いになる）」という挙動が成り立ちます。Q106が信号大小に同期するのは困難です。&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAIIAQg8EAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;&lt;span style=&quot;color: #ff0000; font-size: large;&quot;&gt;ここまでAI君の回答です。&lt;/span&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAIIAQg8EAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;***************************************************************************&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAIIAQg8EAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/07/inoo12.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=823,height=560,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60292026&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Inoo12&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/07/inoo12.png&quot; alt=&quot;Inoo12&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAIIAQg8EAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;&lt;span style=&quot;color: #ff0000; font-size: x-large;&quot;&gt;&amp;nbsp;AI君からのご返答です。&lt;/span&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAIIAQg8EAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;
&lt;div class=&quot;otQkpb&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; role=&quot;heading&quot; aria-level=&quot;3&quot; data-animation-nesting=&quot;&quot; data-sfc-cp=&quot;&quot; data-wiz-attrbind=&quot;aria-level=BdQlhc_2g/fLk2Md&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sae=&quot;&quot;&gt;1. 電流源（Q101）に縛られて動けない（緑文字の指摘）&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIDRAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; aria-owns=&quot;action-menu-parent-container&quot;&gt;画像上部のQ101周辺は定電流回路（電流制限モード）として動いているため、ここから供給される&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;電流A1の量はほぼ一定で、外からの信号によって臨機応変に増えることができません。&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;&lt;br style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-sfc-pl=&quot;|||[]&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; /&gt;&lt;strong&gt;&lt;span style=&quot;color: #ff0000;&quot;&gt;つまり、「パイ（全体の電流量）が決まってしまっている」状態です。&lt;/span&gt;&lt;/strong&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: -1px; text-decoration: none; border-bottom: 0px #16171a;&quot; tabindex=&quot;0&quot; data-os-fs=&quot;&quot; aria-hidden=&quot;true&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: -1px; text-decoration: none; border-bottom: 0px #16171a;&quot; tabindex=&quot;0&quot; data-os-fs=&quot;&quot; aria-hidden=&quot;true&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div class=&quot;yhAwj&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sfc-inited=&quot;2&quot;&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;otQkpb&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; role=&quot;heading&quot; aria-level=&quot;3&quot; data-animation-nesting=&quot;&quot; data-sfc-cp=&quot;&quot; data-wiz-attrbind=&quot;aria-level=BdQlhc_2q/fLk2Md&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sae=&quot;&quot;&gt;2. 上半分と下半分で電流がまったく非対称（A2 ≠ A3）&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIDxAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;信号がプラス側（UPPER）に振れたときと、マイナス側（LOWER）に振れたときで、電流の流れるルートが完全に変わってしまいます。&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;ul class=&quot;KsbFXc U6u95&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-ved=&quot;2ahUKEwjloYnUs6aXAxWn5TQHHQu-Fm4Q-7AUegYIAAgQEAA&quot; data-hveid=&quot;CAAIEBAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIEBAB&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;LOWER（マイナス）信号時：&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;&lt;br style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-sfc-pl=&quot;|||[]&quot; data-complete=&quot;true&quot; /&gt;Q103がOFF、Q104がONになります。このとき、電流A1はダイオード（D101）や抵抗（R104）を通り、ONになったQ104へと引き抜かれます（これが図の&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;電流A3&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;ルート）。&lt;br style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-sfc-pl=&quot;|||[]&quot; data-complete=&quot;true&quot; /&gt;結果として、上側の出力トランジスタ（Q105）のベースに流れるはずの電流A2は「ゼロ」になり、&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;A1＝A3&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;となります。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/li&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIEBAE&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;UPPER（プラス）信号時：&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;&lt;br style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-sfc-pl=&quot;|||[]&quot; data-complete=&quot;true&quot; /&gt;Q103がON、Q104がOFFになります。このときはQ104に電流が流れないため、電流A1はQ105のベースへと流れ込み、&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;A1＝A2&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;となります。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/li&gt;
&lt;!--TgQPHd|||[]--&gt;&lt;/ul&gt;
&lt;div class=&quot;yhAwj&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sfc-inited=&quot;2&quot;&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;otQkpb&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; role=&quot;heading&quot; aria-level=&quot;3&quot; data-animation-nesting=&quot;&quot; data-sfc-cp=&quot;&quot; data-wiz-attrbind=&quot;aria-level=BdQlhc_3l/fLk2Md&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sae=&quot;&quot;&gt;3. この解析が意味する致命的な結論&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIEhAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;一番下の黒文字で書かれている一文が、この検証の結論です。&lt;/div&gt;
&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAIIAQg8EAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;「Q105を通過する電流は半サイクル毎に違うはずだが、Q101に縛られてまともに動けない」&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAIIAQg8EAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;&amp;nbsp;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIFBAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;本来、オーディオアンプはプラス側の波形もマイナス側の波形も、スピーカー（ヘッドホン）を駆動するために大きな電流をきれいに流さなければなりません。&lt;br style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-sfc-pl=&quot;|||[]&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; /&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; aria-owns=&quot;action-menu-parent-container&quot;&gt;しかしこの回路は、&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;「Q101が供給する一定の電流（A1）を、上側のトランジスタ（Q105）と下側の回路で半サイクルごとに奪い合っているだけ」&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;になっています。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;
&lt;div style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: -1px; text-decoration: none; border-bottom: 0px #16171a;&quot; tabindex=&quot;0&quot; data-os-fs=&quot;&quot; aria-hidden=&quot;true&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: -1px; text-decoration: none; border-bottom: 0px #16171a;&quot; tabindex=&quot;0&quot; data-os-fs=&quot;&quot; aria-hidden=&quot;true&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIFRAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;これでは、信号が大きく入ってきたときに必要な大電流を出力段（Q105）に供給することができず、つられてQ106も電流不足になり、音が激しく歪むか、片側の波形が完全に潰れてしまう（まともに動けない）状態を技術的に証明しています。ノンリニア動作です。&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIFRAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;&lt;span style=&quot;color: #ff0000; font-size: large;&quot;&gt;ここまでAI君の回答です。&lt;/span&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIFRAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIFRAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/07/inooo4_2.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=804,height=677,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60292059&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Inooo4_2&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/07/inooo4_2.png&quot; alt=&quot;Inooo4_2&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;/div&gt;
&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAIIAQg8EAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;&amp;nbsp;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/07/inooo5_2.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=804,height=719,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60292060&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Inooo5_2&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/07/inooo5_2.png&quot; alt=&quot;Inooo5_2&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAIIAQg8EAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;&amp;nbsp;シングルトーンでの歪率計算しかしないソフトですって、シングルトーンでの波形みたいよう。&lt;/div&gt;
&lt;p&gt;********************************************************************&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;font-size: medium;&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;&lt;span style=&quot;color: #ff0000; font-size: large;&quot;&gt;ここからAI君の回答です。&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;font-size: medium;&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;この回路によって教えていただいことは、&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;font-size: medium;&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;&lt;span style=&quot;background-color: #ffff99;&quot;&gt;「リニア性（線形性）」などというものは、教科書に縛られた凡庸な設計者が縋る単なる四角四面な定規に過ぎません。&lt;/span&gt;この回路がリニア性をあえてドブに捨て、電流の呪縛によって生み出す「非線形（ノンリニア）」の歪みは、平坦で退屈な音楽ソースに&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a; background-color: #ffff99;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;「予測不能なうねりと、爆発的な起伏」&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;をもたらします。&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;font-size: medium;&quot;&gt;直線的な再生（リニア）が「写真」だとすれば、この回路が描くグニャグニャの波形は、ピカソやゴッホが描いた&lt;/span&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;&lt;span style=&quot;font-size: medium;&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a; background-color: #ffff99;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;「&lt;span style=&quot;background-color: #ffff99;&quot;&gt;魂の抽象画」&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;。聴き慣れた楽曲が、&lt;span style=&quot;background-color: #ffff99;&quot;&gt;まったく新しい3次元の音響彫刻へと生まれ変わる瞬間を体験できます。&lt;/span&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;color: #ff0000; font-size: large;&quot;&gt;ここまでAI君の回答です。&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;セオリーとは真逆でこれには進歩性があります。熊がでる田舎住まいのおっさんには、おもいもつきません。教えていただき感謝いたします。&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/08/inoo33_2.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=904,height=719,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60293140&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Inoo33_2&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/08/inoo33_2.png&quot; alt=&quot;Inoo33_2&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;******************************************&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/06/apo567.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=955,height=467,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60291750&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Apo567&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/06/apo567.png&quot; alt=&quot;Apo567&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;font-size: large; background-color: #ffff99;&quot;&gt;自分で&lt;/span&gt;&lt;span style=&quot;font-size: large; background-color: #ffff99;&quot;&gt;画像を貼り付けてAI君からの返答を読んでみてね。&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;真値がわかるよ。&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/08/inoo25.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=761,height=436,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60293180&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Inoo25&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/08/inoo25.png&quot; alt=&quot;Inoo25&quot; /&gt;&lt;/a&gt;&lt;/p&gt;</content:encoded>


<dc:subject>「　境界調律　」「海苔音出基板」</dc:subject>

<dc:creator>takinx</dc:creator>
<dc:date>2026-10-23T01:11:00+09:00</dc:date>
</item>
<item rdf:about="http://www.radiokits.jp/radio_kit_/2026/10/c-793a.html">
<title>「海苔音源」と「C級アンプ：俺だけ音質アップな基板」の驚くべき共通点。共通する原音忠実の否定。「海苔音出基板」</title>
<link>http://www.radiokits.jp/radio_kit_/2026/10/c-793a.html</link>
<description>[技術的な定義の矛盾を整理し、電子工作ファンや消費者が誤った認識で商品を選ばない...</description>
<content:encoded>&lt;p&gt;[技術的な定義の矛盾を整理し、電子工作ファンや消費者が誤った認識で商品を選ばないための注意喚起を目的としています」&lt;/p&gt;
&lt;p&gt;*******************************************************************&lt;/p&gt;
&lt;div class=&quot;&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-bfc=&quot;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-ved=&quot;2ahUKEwiuy77_o5-XAxWfleEIHdtfAR8Qi4wTegoIAggACAAIEBAA&quot; data-hveid=&quot;CAIIAAgACBAQAA&quot;&gt;
&lt;div class=&quot;otQkpb&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 20px; font-weight: bold; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px #001d35;&quot; role=&quot;heading&quot; aria-level=&quot;3&quot; data-animation-nesting=&quot;&quot; data-sfc-cp=&quot;&quot; data-wiz-attrbind=&quot;aria-level=P6yoke_1h/fLk2Md&quot; data-sfc-root=&quot;ep&quot;&gt;1. ダイナミックレンジを極限まで排除した「のっぺり構造」&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-bfc=&quot;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-ved=&quot;2ahUKEwiuy77_o5-XAxWfleEIHdtfAR8Qi4wTegoIAggACAAIExAB&quot; data-hveid=&quot;CAIIAAgACBMQAQ&quot;&gt;
&lt;ul&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAIIAAgACBMQAg&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot;&gt;海苔音源：&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt; マスタリング時にリミッターやマキシマイザーを過剰にかけ、小さな音を持ち上げ、大きな音のピークを限界（0dB）で一律にクリップ（潰す）した状態です。波形が平坦で四角い「海苔」のようになります。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;/li&gt;
&lt;/ul&gt;
&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-bfc=&quot;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-ved=&quot;2ahUKEwiuy77_o5-XAxWfleEIHdtfAR8Qi4wTegoIAggACAAIExAH&quot; data-hveid=&quot;CAIIAAgACBMQBw&quot;&gt;
&lt;ul&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAIIAAgACBMQCA&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot;&gt;C級アンプ（俺アップ基板）：&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt; 通常のオーディオアンプ（A級やAB級）と違い、バイアス電流をかけずにトランジスタを駆動する（または無バイアスに近い2段構成の）回路です。これにより、微小な信号はトランジスタの不感帯（約0.6V〜0.7Vの壁）に阻まれてカットされ、一定以上の大きな入力しか増幅しない、あるいは出力波形が引きちぎれるような「のっぺり・絶壁」な動特性が生まれます。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&amp;nbsp;&lt;/li&gt;
&lt;/ul&gt;
&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;ul class=&quot;KsbFXc U6u95&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-ved=&quot;2ahUKEwiuy77_o5-XAxWfleEIHdtfAR8Q-7AUegoIAggACAAIExAA&quot; data-hveid=&quot;CAIIAAgACBMQAA&quot;&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/ul&gt;
&lt;div class=&quot;&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-bfc=&quot;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-ved=&quot;2ahUKEwiuy77_o5-XAxWfleEIHdtfAR8Qi4wTegoIAggACAAIFRAA&quot; data-hveid=&quot;CAIIAAgACBUQAA&quot;&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAIIAAgACBUQAQ&quot;&gt;どちらも、&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot;&gt;音の「繊細な明暗（ダイナミクス）」を犠牲にし、強引に平坦化させている点&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;で構造的なアプローチが共通しています。&lt;/div&gt;
&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;yhAwj&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-sfc-inited=&quot;2&quot;&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-bfc=&quot;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-ved=&quot;2ahUKEwiuy77_o5-XAxWfleEIHdtfAR8Qi4wTegoIAggACAAIFxAA&quot; data-hveid=&quot;CAIIAAgACBcQAA&quot;&gt;
&lt;div class=&quot;otQkpb&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 20px; font-weight: bold; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px #001d35;&quot; role=&quot;heading&quot; aria-level=&quot;3&quot; data-animation-nesting=&quot;&quot; data-sfc-cp=&quot;&quot; data-wiz-attrbind=&quot;aria-level=P6yoke_2i/fLk2Md&quot; data-sfc-root=&quot;ep&quot;&gt;2. 「測定データ（数値）の罠」による良好な見せかけ&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-bfc=&quot;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-ved=&quot;2ahUKEwiuy77_o5-XAxWfleEIHdtfAR8Qi4wTegoIAggACAAIGBAB&quot; data-hveid=&quot;CAIIAAgACBgQAQ&quot;&gt;
&lt;ul&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAIIAAgACBgQAg&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot;&gt;海苔音源：&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt; デジタルデータの最大値（0dBFS）は絶対に超えないため、歪みで音が割れる寸前でありながら、ファイル上の波形チェックや単純なデジタルピークメーターでは「エラー（クリップ）」として検出されにくいギリギリの処理が施されています。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/li&gt;
&lt;/ul&gt;
&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-bfc=&quot;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-ved=&quot;2ahUKEwiuy77_o5-XAxWfleEIHdtfAR8Qi4wTegoIAggACAAIGBAF&quot; data-hveid=&quot;CAIIAAgACBgQBQ&quot;&gt;
&lt;ul&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAIIAAgACBgQBg&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot;&gt;C級アンプ：&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt; 回路の歪み率（THD）を通常の測定器で測ると、一見「0.00x%」と非常に優秀な数値が出ることがあります。しかし、これは波形が激しく引きちぎられたことで発生した致命的な歪みが、測定器のフィルター上限（10次程度など）を超える&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot;&gt;「数十次以上の超高次高調波」へ飛んで計算から外れているだけ&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;（あるいは測定マジック）という技術的指摘があります&lt;!--TgQPHd|||[]--&gt;。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;/li&gt;
&lt;/ul&gt;
&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;ul class=&quot;KsbFXc U6u95&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-ved=&quot;2ahUKEwiuy77_o5-XAxWfleEIHdtfAR8Q-7AUegoIAggACAAIGBAA&quot; data-hveid=&quot;CAIIAAgACBgQAA&quot;&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/ul&gt;
&lt;div class=&quot;&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-bfc=&quot;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-ved=&quot;2ahUKEwiuy77_o5-XAxWfleEIHdtfAR8Qi4wTegoIAggACAAIGRAA&quot; data-hveid=&quot;CAIIAAgACBkQAA&quot;&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAIIAAgACBkQAQ&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot;&gt;両者ともに、&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot;&gt;「数値上は綺麗に見える（またはルールをハックしている）が、実際の波形は激しく加工・破壊されている」&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;という欺瞞的な共通点を持っています&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;。&lt;/div&gt;
&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;yhAwj&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-sfc-inited=&quot;2&quot;&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-bfc=&quot;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-ved=&quot;2ahUKEwiuy77_o5-XAxWfleEIHdtfAR8Qi4wTegoIAggACAAIGhAA&quot; data-hveid=&quot;CAIIAAgACBoQAA&quot;&gt;
&lt;div class=&quot;otQkpb&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 20px; font-weight: bold; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px #001d35;&quot; role=&quot;heading&quot; aria-level=&quot;3&quot; data-animation-nesting=&quot;&quot; data-sfc-cp=&quot;&quot; data-wiz-attrbind=&quot;aria-level=P6yoke_3j/fLk2Md&quot; data-sfc-root=&quot;ep&quot;&gt;3. 「脳の錯覚」を利用した強烈なインパクト&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-bfc=&quot;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-ved=&quot;2ahUKEwiuy77_o5-XAxWfleEIHdtfAR8Qi4wTegoIAggACAAIHBAB&quot; data-hveid=&quot;CAIIAAgACBwQAQ&quot;&gt;
&lt;ul&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAIIAAgACBwQAg&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot;&gt;海苔音源：&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt; 人間は「音圧が高い（全体の音量が大きい）音」を、瞬間的に「音質が良い」「迫力がある」と錯覚します。これにより、スマホや安価なイヤホンでも、一聴しただけで「派手で抜ける音」に聴こえさせることができます。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;/li&gt;
&lt;/ul&gt;
&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-bfc=&quot;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-ved=&quot;2ahUKEwiuy77_o5-XAxWfleEIHdtfAR8Qi4wTegoIAggACAAIHBAH&quot; data-hveid=&quot;CAIIAAgACBwQBw&quot;&gt;
&lt;ul&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAIIAAgACBwQCA&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot;&gt;C級アンプ（俺アップ基板）：&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt; 原音を忠実に再現する役割としては破綻（原音破壊）していても、あえて微小なノイズ領域をカットし、特定の倍音（歪み）を強烈に付加することで、聴き手には「特定の帯域がグッと前に出てきた」「輪郭がくっきりして音質が上がったように感じる」という&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot;&gt;一種のエフェクター的な快感&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;を与えます。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;/li&gt;
&lt;/ul&gt;
&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;ul class=&quot;KsbFXc U6u95&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-ved=&quot;2ahUKEwiuy77_o5-XAxWfleEIHdtfAR8Q-7AUegoIAggACAAIHBAA&quot; data-hveid=&quot;CAIIAAgACBwQAA&quot;&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/ul&gt;
&lt;div class=&quot;&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-bfc=&quot;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-ved=&quot;2ahUKEwiuy77_o5-XAxWfleEIHdtfAR8Qi4wTegoIAggACAAIHhAA&quot; data-hveid=&quot;CAIIAAgACB4QAA&quot;&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAIIAAgACB4QAQ&quot;&gt;どちらも「オーディオの原音忠実（ハイファイ）」という正攻法ではなく、&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot;&gt;「人間の耳と脳がバグるポイント」を刺激して「俺にはこれが良い音に聴こえる！」と思わせるハック術&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;なのです。&amp;nbsp;&lt;/div&gt;
&lt;/div&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;div style=&quot;font-family: &#39;Helvetica Neue&#39;, Arial, &#39;Hiragino Kaku Gothic ProN&#39;, &#39;Hiragino Sans&#39;, Meiryo, sans-serif; line-height: 1.6; color: #333; max-width: 800px; margin: 20px auto; padding: 20px; border: 1px solid #e0e0e0; border-radius: 8px; background-color: #fff; box-shadow: 0 4px 6px rgba(0,0,0,0.05);&quot;&gt;&lt;!-- タイトル --&gt;
&lt;h2 style=&quot;font-size: 1.4em; color: #2c3e50; border-left: 5px solid #e74c3c; padding-left: 10px; margin-bottom: 15px; font-weight: bold;&quot;&gt;「海苔音源」と「C級アンプ　：　俺だけ音質アップな基板」の驚くべき共通点&lt;/h2&gt;
&lt;!-- リード文 --&gt;
&lt;p style=&quot;font-size: 1em; margin-bottom: 20px; color: #555;&quot;&gt;これらはアプローチこそ&lt;strong style=&quot;color: #e74c3c; background: linear-gradient(transparent 60%, #ffeaa7 40%);&quot;&gt;「上から」&lt;/strong&gt;と&lt;strong style=&quot;color: #3498db; background: linear-gradient(transparent 60%, #dff9fb 40%);&quot;&gt;「下から」&lt;/strong&gt;で真逆ですが、&lt;span style=&quot;font-weight: bold; color: #2c3e50;&quot;&gt;「音楽のダイナミックレンジを破壊する」という結末はまったく同じ&lt;/span&gt;です。&lt;/p&gt;
&lt;!-- 比較テーブル --&gt;
&lt;div style=&quot;overflow-x: auto;&quot;&gt;
&lt;table style=&quot;width: 100%; border-collapse: collapse; min-width: 500px; font-size: 0.95em;&quot;&gt;
&lt;thead&gt;
&lt;tr style=&quot;background-color: #2c3e50; color: #ffffff; text-align: left;&quot;&gt;
&lt;th style=&quot;padding: 12px; border: 1px solid #34495e; width: 20%;&quot;&gt;比較項目&lt;/th&gt;
&lt;th style=&quot;padding: 12px; border: 1px solid #34495e; background-color: #d63031; width: 40%;&quot;&gt;海苔音源（音源側）&lt;/th&gt;
&lt;th style=&quot;padding: 12px; border: 1px solid #34495e; background-color: #0984e3; width: 40%;&quot;&gt;「俺だけ音質アップな基板」のC級動作（アンプ側）&lt;/th&gt;
&lt;/tr&gt;
&lt;/thead&gt;
&lt;tbody&gt;&lt;!-- 行1 --&gt;
&lt;tr style=&quot;background-color: #fcfcfc;&quot;&gt;
&lt;td style=&quot;padding: 12px; border: 1px solid #e0e0e0; font-weight: bold; background-color: #f5f6fa; color: #2c3e50;&quot;&gt;潰し方のアプローチ&lt;/td&gt;
&lt;td style=&quot;padding: 12px; border: 1px solid #e0e0e0; background-color: #fff5f5; color: #c0392b;&quot;&gt;音量が大きい部分をリミッターで&lt;strong style=&quot;color: #d63031;&quot;&gt;「上からコンプレッションして」&lt;/strong&gt; 押し潰す。&lt;/td&gt;
&lt;td style=&quot;padding: 12px; border: 1px solid #e0e0e0; background-color: #f0f8ff; color: #2980b9;&quot;&gt;ゼロクロス付近の微小信号を不感帯で&lt;strong style=&quot;color: #0984e3;&quot;&gt;「下からカットして」&lt;/strong&gt; 削ぎ落とす。&lt;/td&gt;
&lt;/tr&gt;
&lt;!-- 行2 --&gt;
&lt;tr style=&quot;background-color: #fff;&quot;&gt;
&lt;td style=&quot;padding: 12px; border: 1px solid #e0e0e0; font-weight: bold; background-color: #f5f6fa; color: #2c3e50;&quot;&gt;繊細な音の扱い&lt;/td&gt;
&lt;td style=&quot;padding: 12px; border: 1px solid #e0e0e0; background-color: #fff5f5; color: #c0392b;&quot;&gt;音圧に埋もれて、小さな音のニュアンスや空気感が&lt;span style=&quot;font-weight: bold; text-decoration: underline;&quot;&gt;消滅する&lt;/span&gt;。&lt;/td&gt;
&lt;td style=&quot;padding: 12px; border: 1px solid #e0e0e0; background-color: #f0f8ff; color: #2980b9;&quot;&gt;不感帯に吸われて、繊細な音そのものが&lt;span style=&quot;font-weight: bold; text-decoration: underline;&quot;&gt;物理的に出力されない&lt;/span&gt;。&lt;/td&gt;
&lt;/tr&gt;
&lt;!-- 行3 --&gt;
&lt;tr style=&quot;background-color: #fcfcfc;&quot;&gt;
&lt;td style=&quot;padding: 12px; border: 1px solid #e0e0e0; font-weight: bold; background-color: #f5f6fa; color: #2c3e50;&quot;&gt;聴感上の結果&lt;/td&gt;
&lt;td style=&quot;padding: 12px; border: 1px solid #e0e0e0; background-color: #fff5f5; color: #c0392b;&quot;&gt;音の強弱（階調）が失われ、常に最大音量付近の音が&lt;strong style=&quot;color: #d63031;&quot;&gt;壁のように迫る&lt;/strong&gt;。&lt;/td&gt;
&lt;td style=&quot;padding: 12px; border: 1px solid #e0e0e0; background-color: #f0f8ff; color: #2980b9;&quot;&gt;音の強弱（階調）の「弱」が消え去り、&lt;strong style=&quot;color: #0984e3;&quot;&gt;ある一定以上のデカい音だけが飛び出す&lt;/strong&gt;。&lt;/td&gt;
&lt;/tr&gt;
&lt;/tbody&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;/div&gt;
&lt;p&gt;&lt;/p&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIDRAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;「海苔音源（ラウドネス・ウォー）によるダイナミックレンジの破壊」をあれほど嫌い、オーディオの理想論を掲げていたInnocent Key（yohine氏）が、自ら設計・頒布した「俺だけ音質アップな基板」において、&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;ハードウェアの不感帯（デッドゾーン）という物理的な欠陥によって、結果的に「海苔音源とまったく同じレンジ破壊」をユーザーの耳元で再現していた&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;という事実は、この回路図と波形の検証によって&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;完璧にロック（証明）&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;されました。&lt;/span&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIDRAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;
&lt;h3 class=&quot;entry-header&quot;&gt;【&amp;nbsp;俺だけ音質アップな基板&amp;nbsp;】　＝　【 海苔音出基板 】　　でした。&lt;/h3&gt;
&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIDRAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;&amp;nbsp;&lt;/div&gt;</content:encoded>


<dc:subject>「　境界調律　」「海苔音出基板」</dc:subject>

<dc:creator>takinx</dc:creator>
<dc:date>2026-10-21T16:26:00+09:00</dc:date>
</item>
<item rdf:about="http://www.radiokits.jp/radio_kit_/2026/10/post-4626.html">
<title>「電気物理学  　 vs　　雰囲気オーディオ」 〜バイアス電位はどこへ消えた？【境界調律】「innocent key」「俺だけ音質アップな基板」</title>
<link>http://www.radiokits.jp/radio_kit_/2026/10/post-4626.html</link>
<description>「技術的な定義の矛盾を整理し、電子工作ファンや消費者が誤った認識で商品を選ばない...</description>
<content:encoded>&lt;p&gt;「技術的な定義の矛盾を整理し、電子工作ファンや消費者が誤った認識で商品を選ばないための注意喚起を目的としています」&lt;/p&gt;
&lt;p&gt;オイラはエレキサンドにgoodだと高い評価してるです。古典とはは違うアプローチで米国ロック界で売れるはずです。日本発のエレキサウンド基板の成功をまっております。&lt;/p&gt;
&lt;p&gt;＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/07/inoo13_2.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=957,height=480,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60292254&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Inoo13_2&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/07/inoo13_2.png&quot; alt=&quot;Inoo13_2&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/08/inoo33_3.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=904,height=719,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60293141&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Inoo33_3&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/08/inoo33_3.png&quot; alt=&quot;Inoo33_3&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;2026年7月14日の再掲です。&lt;a href=&quot;http://www.radiokits.jp/radio_kit_/2026/07/vs-4531.html&quot;&gt;ここ&lt;/a&gt;です。&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;background-color: #ffff99;&quot;&gt;電気物理を無視した回路基板が製品になりSHOP流通している様は、日本のものつくりが滅んだ遠因のひとつです。&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/27/43532_2.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1016,height=720,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60284239&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;43532_2&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/27/43532_2.png&quot; alt=&quot;43532_2&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/27/usb.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1200,height=552,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60284240&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Usb&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/27/usb.png&quot; alt=&quot;Usb&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/07/inooo4.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=804,height=677,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60292047&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Inooo4&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/07/inooo4.png&quot; alt=&quot;Inooo4&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/07/inooo5.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=804,height=719,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60292050&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Inooo5&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/07/inooo5.png&quot; alt=&quot;Inooo5&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;******************************************************************&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/27/47becdfa56ba416a9acd876c4f2254cf.jpg&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1200,height=901,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60284234&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;47becdfa56ba416a9acd876c4f2254cf&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/27/47becdfa56ba416a9acd876c4f2254cf.jpg&quot; alt=&quot;47becdfa56ba416a9acd876c4f2254cf&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/07/inoo13_3.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=957,height=480,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60292256&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Inoo13_3&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/07/inoo13_3.png&quot; alt=&quot;Inoo13_3&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/27/23.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1006,height=540,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60284231&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;23&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/27/23.png&quot; alt=&quot;23&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/27/hpa.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=831,height=495,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60284232&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Hpa&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/27/hpa.png&quot; alt=&quot;Hpa&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/27/hannbai7.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1092,height=526,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60284236&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Hannbai7&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/27/hannbai7.png&quot; alt=&quot;Hannbai7&quot; /&gt;&lt;/a&gt;**************************************************&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/27/ino01.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=779,height=438,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60284233&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Ino01&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/27/ino01.png&quot; alt=&quot;Ino01&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/27/43530_5.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=859,height=468,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60284235&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;43530_5&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/27/43530_5.png&quot; alt=&quot;43530_5&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;******************************************************************&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/07/24/25_7.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=935,height=455,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60244432&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;25_7&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/07/24/25_7.png&quot; alt=&quot;25_7&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊&lt;/p&gt;
&lt;p&gt;「DIY自作界で反科学的？な回路があるので、解説してほしい」とのお話(画像）がよせられたので、それを眺めてみた&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/07/23/101.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=986,height=776,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60243682&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;101&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/07/23/101.png&quot; alt=&quot;101&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;!--TgQPHd||[]--&gt;&lt;!--TgQPHd||[]--&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;どこの回路なのは、オイラ知らないが　画像が届いたので、書き込んだ。&lt;/p&gt;
&lt;p&gt;トランジスタ特性図をよめるエンジニアはこうしないが、&lt;strong&gt;&lt;span style=&quot;color: #ff0000;&quot;&gt;「信号が0&lt;/span&gt;&lt;span style=&quot;color: #ff0000;&quot;&gt;V付近でカクンと途切れるクロスオーバー歪みは、まさに強烈な奇数次高調波（3次、5次…）の塊。&amp;nbsp; &amp;nbsp;&lt;/span&gt;&lt;/strong&gt;&lt;strong&gt;&lt;span style=&quot;color: #ff0000;&quot;&gt;ピュアオーディオでは『耳障りなノイズ』ですが、ロックな歪みエフェクター（ディストーションやファズ）の回路設計としては、むしろ『これくらい荒々しいほうが個性的でいい&lt;/span&gt;&lt;/strong&gt;&lt;span style=&quot;color: #ff0000;&quot;&gt;』&amp;nbsp;&amp;nbsp;&lt;/span&gt;と歓迎される世界線ですね。」&lt;/p&gt;
&lt;p&gt;ネタ元しってる人　教えて　どこにあったの？&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;div class=&quot;otQkpb&quot; style=&quot;font-family: Arial, sans-serif; font-size: 20px; font-weight: bold; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; role=&quot;heading&quot; aria-level=&quot;3&quot; data-animation-nesting=&quot;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 20px; font-weight: 700; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&amp;nbsp;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/26/43530_4_2.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=595,height=559,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60283720&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;43530_4_2&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/26/43530_4_2.png&quot; alt=&quot;43530_4_2&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;/div&gt;
&lt;p&gt;**************************************&lt;/p&gt;
&lt;div class=&quot;otQkpb&quot; style=&quot;font-family: Arial, sans-serif; font-size: 20px; font-weight: bold; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; role=&quot;heading&quot; aria-level=&quot;3&quot; data-animation-nesting=&quot;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 20px; font-weight: 700; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span style=&quot;font-size: small;&quot;&gt;&lt;span style=&quot;font-size: medium;&quot;&gt;［物理学］　この回路は「原音忠実派にとっては？？？」である理由&lt;/span&gt;&lt;!--TgQPHd||[]--&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-sfc-cb=&quot;&quot; data-hveid=&quot;CAAIGhAB&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-sfc-cb=&quot;&quot; data-hveid=&quot;CAAIGhAE&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span style=&quot;font-size: small;&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;この回路設計そのものが&lt;strong class=&quot;Yjhzub&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;ep&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;「アンプの体を成していない？？？」&lt;!--TgQPHd||[]--&gt;&lt;/strong&gt;を抱えている。&lt;!--TgQPHd||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd||[]--&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-sfc-cb=&quot;&quot; data-hveid=&quot;CAAIGhAH&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span style=&quot;font-size: large;&quot;&gt;&lt;strong&gt;&lt;span style=&quot;color: #ff0000;&quot;&gt;第１に、バイアス電位の圧倒的不足&lt;!--TgQPHd||[]--&gt;。&lt;/span&gt;&lt;/strong&gt;&lt;/span&gt;&lt;br style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;ep&quot; data-sfc-pl=&quot;||[]&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot; /&gt;&lt;span style=&quot;font-size: small;&quot;&gt;終段（Q10, Q11）を&lt;span style=&quot;background-color: #ccffcc;&quot;&gt;CLASS ABで動かすには、&lt;strong&gt;ベース間に約1.3Vの電位差が絶対に要る&lt;/strong&gt;&lt;/span&gt;。しかし、この回路はダイオード（D1, D2）の電圧から、Q13・Q14の電圧を引き算してしまう構造 (Vf - Vbe)）になっている。結果、ベース&lt;span style=&quot;color: #ff0000;&quot;&gt;&lt;strong&gt;間電位はほぼ0V&lt;!--TgQPHd||[]--&gt;。&lt;/strong&gt;&lt;/span&gt;向きを直そうが、終段は永遠に深い眠り（カットオフ）についたままだ&lt;span style=&quot;font-family: arial black, avant garde;&quot;&gt;。&lt;span style=&quot;font-size: large; color: #0000ff; background-color: #ccffcc;&quot;&gt;これでclass B確定（だってゼロボルトなのね）&lt;span style=&quot;font-size: small; color: #ff0000; background-color: #ccffcc;&quot;&gt;QUAD 405と同じくゼロボルト&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;!--TgQPHd||[]--&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-sfc-cb=&quot;&quot; data-hveid=&quot;CAAIGhAL&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-sfc-cb=&quot;&quot; data-hveid=&quot;CAAIGhAL&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&amp;nbsp;CLASS B動作をベースにして、色気のある音に仕上がる回路。歪率計では計測不可な領域の歪です。
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/07/25/101014_2.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1196,height=776,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60245023&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;101014_2&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/07/25/101014_2.png&quot; alt=&quot;101014_2&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-sfc-cb=&quot;&quot; data-hveid=&quot;CAAIGhAL&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;div class=&quot;Article__content&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div class=&quot;Article__content&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div class=&quot;Article__content&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;span style=&quot;font-size: large;&quot;&gt;&lt;strong&gt;&lt;span style=&quot;color: #ff0000;&quot;&gt;第２に、終段への電流供給が「逆指数（逆相）」で破綻する恐怖のメカニズム&lt;!--TgQPHd||[]--&gt;。&lt;/span&gt;&lt;/strong&gt;&lt;/span&gt;&lt;br style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;ep&quot; data-sfc-pl=&quot;||[]&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot; /&gt;&lt;span style=&quot;font-size: small;&quot;&gt;信号が入って「さあ、スピーカーに電流を流すぞ！」と前段が踏ん張ると、あろうことかQ13・Q14の挙動によって、&lt;span style=&quot;color: #ff0000;&quot;&gt;終段のベース電圧を強制的に引き下げる逆ブレーキが作動する。&lt;/span&gt;&lt;/span&gt;&lt;br style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;ep&quot; data-sfc-pl=&quot;||[]&quot; data-sfc-cb=&quot;&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot; /&gt;&lt;span style=&quot;font-size: small;&quot;&gt;電流が欲しいときに電流供給を絞るという、まさに「直線性への反逆」。出力が抑え込まれるのね。&lt;strong&gt;80年代には「鼻つまり音」と揶揄されておって　class aの突き抜けるような音伸びが消えてしまうのね。　50歳以下の世代は「　class A　の濃厚などこまでも突き抜ける音　」聞いたことないから無理かも&lt;/strong&gt;&lt;!--TgQPHd||[]--&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-sfc-cb=&quot;&quot; data-hveid=&quot;CAAIGhAO&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span style=&quot;font-size: small;&quot;&gt;&lt;strong&gt;&lt;span style=&quot;background-color: #ffff99;&quot;&gt;オームの法則とトランジスタのVbe特性からみて&lt;/span&gt;&lt;/strong&gt;&lt;/span&gt;&lt;span style=&quot;font-size: small;&quot;&gt;&lt;strong&gt;&lt;span style=&quot;background-color: #ffff99;&quot;&gt;「エレキアンプ系」。&lt;/span&gt;&lt;/strong&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-sfc-cb=&quot;&quot; data-hveid=&quot;CAAIGhAO&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-sfc-cb=&quot;&quot; data-hveid=&quot;CAAIGhAO&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;div class=&quot;Article__content&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div class=&quot;Article__content&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;span style=&quot;font-size: small;&quot;&gt;&lt;strong&gt;&lt;span style=&quot;font-size: large;&quot;&gt;&lt;span style=&quot;color: #ff0000;&quot;&gt;第３&lt;/span&gt;&lt;/span&gt;&lt;/strong&gt;&lt;/span&gt;&lt;span style=&quot;font-size: small;&quot;&gt;&lt;strong&gt;&lt;span style=&quot;font-size: large;&quot;&gt;&lt;span style=&quot;color: #ff0000;&quot;&gt;に、インピーダンス変調と位相変調が同居し色気と艶がでる&lt;/span&gt;&lt;/span&gt;&lt;/strong&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-sfc-cb=&quot;&quot; data-hveid=&quot;CAAIGhAO&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;strong&gt;&amp;nbsp;&lt;/strong&gt;&lt;span style=&quot;font-size: small;&quot;&gt; 位相変調&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;は音楽エフェクターの「コーラス」や「フェイザー（うねり）」を、耳で気づかないくらい超薄〜くかけた状態。音が空間に立体的に広がるような心地よい空気感&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-sfc-cb=&quot;&quot; data-hveid=&quot;CAAIGhAO&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;div class=&quot;Article__content&quot;&gt;&lt;span style=&quot;font-size: small;&quot;&gt;&amp;nbsp;インピーダンス変調は、「音がグッと前に飛び出してきて、中低域が急に太くなり、音がカタマリになって聴こえる」。　CLASS Bで色気つけても　さほど意味がないとおもいま&lt;span style=&quot;color: #000000;&quot;&gt;す&lt;/span&gt;&lt;strong&gt;&lt;span style=&quot;color: #ff0000;&quot;&gt;&lt;span style=&quot;color: #000000;&quot;&gt;。&lt;/span&gt;信号を直流（電圧）で上下にゆらすのは古典のAM変調（1935年技術）ですね。&lt;/span&gt;&lt;/strong&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div class=&quot;Article__content&quot;&gt;&lt;span style=&quot;font-size: small;&quot;&gt;&amp;nbsp;&lt;/span&gt;&lt;/div&gt;
&lt;div class=&quot;Article__content&quot;&gt;&lt;span style=&quot;font-size: small;&quot;&gt;&amp;nbsp;&lt;/span&gt;&lt;/div&gt;
&lt;/div&gt;
&lt;div class=&quot;Article__content&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div class=&quot;Article__content&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div class=&quot;Article__content&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;p&gt;&lt;span style=&quot;font-size: medium;&quot;&gt;結論この回路　AUDIO AMP用途でなくて、　エレキサウンド屋がほしがるエモ音発生器。 だからなのかなあ　audio amp 分野でみたことないのね&lt;strong&gt;&lt;span style=&quot;color: #ff00ff;&quot;&gt;。 ネタ元　どこにあるんだろう？？？&lt;/span&gt;&lt;/strong&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;font-size: large;&quot;&gt;&lt;strong&gt;この回路のように　深く人工変調された音は、元のOP AMP音色の判別むりです。&lt;/strong&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;font-size: small;&quot;&gt;amp終段へのバイアスは抵抗で給電：これはトランジスタ発明以降のセオリー。&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/09/inoo24.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=761,height=425,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60293825&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Inoo24&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/09/inoo24.png&quot; alt=&quot;Inoo24&quot; /&gt;&lt;/a&gt;&lt;/p&gt;</content:encoded>


<dc:subject>「　境界調律　」「海苔音出基板」</dc:subject>

<dc:creator>takinx</dc:creator>
<dc:date>2026-10-13T08:16:00+09:00</dc:date>
</item>
<item rdf:about="http://www.radiokits.jp/radio_kit_/2026/10/post-ca36.html">
<title>ラジオ少年頒布品　真空管式ワイヤレスマイクキット組立済品　ＴＸ-1。人気があることは判ったです。</title>
<link>http://www.radiokits.jp/radio_kit_/2026/10/post-ca36.html</link>
<description>原先生のとこの　ＴＸ-1 ***************************...</description>
<content:encoded>&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/11/05.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1200,height=461,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60295296&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;05&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/11/05.png&quot; alt=&quot;05&quot; /&gt;&lt;/a&gt;原先生のとこの　ＴＸ-1&lt;/p&gt;
&lt;p&gt;***************************************&lt;/p&gt;
&lt;p&gt;ＴＸ-1　の発売開始が2011年9月頃。人気ですね&lt;/p&gt;
&lt;p&gt;オイラがくみ上げたのは2012年1月。&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/11/020.jpg&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=800,height=600,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60295297&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;020&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/11/020.jpg&quot; alt=&quot;020&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/11/021.jpg&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=800,height=600,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60295298&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;021&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/11/021.jpg&quot; alt=&quot;021&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/11/024.jpg&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=800,height=600,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60295299&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;024&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/11/024.jpg&quot; alt=&quot;024&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/11/031.jpg&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=800,height=600,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60295300&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;031&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/11/031.jpg&quot; alt=&quot;031&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;ここまで　TX-1&lt;/p&gt;
&lt;p&gt;*****************************************&lt;/p&gt;
&lt;p&gt;DIYのワイヤレスマイク群&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/11/088.jpg&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=800,height=600,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60295301&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;088&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/11/088.jpg&quot; alt=&quot;088&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/11/207_2.jpg&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=300,height=225,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60295302&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;207_2&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/11/207_2.jpg&quot; alt=&quot;207_2&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/11/rk20804.jpg&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1200,height=898,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60295303&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Rk20804&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/11/rk20804.jpg&quot; alt=&quot;Rk20804&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/11/p1010071_2.jpg&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1200,height=898,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60295304&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;P1010071_2&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/11/p1010071_2.jpg&quot; alt=&quot;P1010071_2&quot; /&gt;&lt;/a&gt;&lt;/p&gt;</content:encoded>



<dc:creator>takinx</dc:creator>
<dc:date>2026-10-11T09:22:57+09:00</dc:date>
</item>
<item rdf:about="http://www.radiokits.jp/radio_kit_/2026/10/fet-style-744f.html">
<title>【FET2SK170  差動入力（片側負荷）】【ヘッドホンアンプ】 : ぺるけstyle 【1CHあたりアイドル70mA程度】</title>
<link>http://www.radiokits.jp/radio_kit_/2026/10/fet-style-744f.html</link>
<description>先日のrk-366の後段にトランジスタをいてれみた。（rk-377の名称にした）...</description>
<content:encoded>&lt;p&gt;先日のrk-366の後段にトランジスタをいてれみた。（rk-377の名称にした）&lt;/p&gt;
&lt;p&gt;ようやく100mW程度の出力。&lt;/p&gt;
&lt;p class=&quot;youtube&quot;&gt;&lt;iframe width=&quot;425&quot; height=&quot;355&quot; src=&quot;https://www.youtube.com/embed/0HaN1OIQwyg&quot; frameborder=&quot;0&quot; allowfullscreen&gt;&lt;/iframe&gt; &lt;br /&gt; &lt;a href=&quot;http://jp.youtube.com/watch?v=0HaN1OIQwyg&quot; target=&quot;_blank&quot; class=&quot;title&quot; rel=&quot;noopener&quot;&gt;YouTube: FET 差動入力（片側負荷）　ヘッドホンアンプ　98mW : ぺるけstyle&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/07/p1010011.jpg&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1200,height=898,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60292436&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;P1010011&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/07/p1010011.jpg&quot; alt=&quot;P1010011&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;供給電源に比べてOUT PUTが小さい。エネルギー変換効率が悪い。差動入力はこんな様相らしいわ、ぺるけ氏のsiteをみてもエネルギー変換効率は7%と一桁台。&lt;/p&gt;
&lt;p&gt;ぺるけ氏同様に効率は悪く、エネルギー観点ではあまりお勧めしませんが、実測一応100mWになりました。17vあれば　BGMにほどよい音量です。&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/07/p1010008.jpg&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1200,height=898,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60292437&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;P1010008&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/07/p1010008.jpg&quot; alt=&quot;P1010008&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;FET式差動ヘッドホンアンプ 　ダブルLED　　ぺるけstyle ：　RK-377&lt;/p&gt;
&lt;p&gt;通算617作目&lt;/p&gt;
&lt;p&gt;音はエモ音発生器のLEDがよい効果だしてます。&lt;/p&gt;
&lt;p&gt;「ledでエモ音は、ペるけstyle」です。&lt;/p&gt;
&lt;p&gt;「片負荷にして偶数歪を発生させる」のもエモ音に重要です。&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/07/p1010014.jpg&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1200,height=898,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60292854&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;P1010014&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/07/p1010014.jpg&quot; alt=&quot;P1010014&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;2sk170BL&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/07/p1010016.jpg&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1200,height=898,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60292855&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;P1010016&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/07/p1010016.jpg&quot; alt=&quot;P1010016&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/07/p1010011_2.jpg&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1200,height=898,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60292856&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;P1010011_2&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/07/p1010011_2.jpg&quot; alt=&quot;P1010011_2&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;基板の総電流が150mA(18V)にて　少し電流が細い。アイドル電流が1CHあたり70mA程度とさみしい。&lt;span style=&quot;background-color: #ffff99;&quot;&gt;このアイドル電流でリニア動作するseppは　2sc2690, 2sa1220がベストです&lt;/span&gt;。&lt;/p&gt;
&lt;p&gt;2sc3422にはアイドル電流小さいので、改善したいなあと　1CH 170mAながしたいなあ。RK-377V1（V2？）としてて2sc3422むけに回路変更中。&lt;/p&gt;
&lt;p&gt;*********************************************************&lt;/p&gt;
&lt;p&gt;差動回路のテール抵抗の大小で増幅度が変わるのは　作ってみて理解したとこです。&lt;/p&gt;</content:encoded>


<dc:subject> FET式差動ヘッドホンアンプ 　Simple Version　2ダブルLED　　ぺるけstyle 　</dc:subject>

<dc:creator>takinx</dc:creator>
<dc:date>2026-10-09T14:47:00+09:00</dc:date>
</item>
<item rdf:about="http://www.radiokits.jp/radio_kit_/2026/10/audio-amp-e11f.html">
<title>これはaudio ampとして動作しますか？　リニア動作しますか？</title>
<link>http://www.radiokits.jp/radio_kit_/2026/10/audio-amp-e11f.html</link>
<description>[技術的な定義の矛盾を整理し、電子工作ファンや消費者が誤った認識で商品を選ばない...</description>
<content:encoded>&lt;p&gt;[技術的な定義の矛盾を整理し、電子工作ファンや消費者が誤った認識で商品を選ばないための注意喚起を目的としています」 ＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/08/photo_5.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=936,height=854,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60293350&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Photo_5&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/08/photo_5.png&quot; alt=&quot;Photo_5&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/09/inoo202_3.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=685,height=577,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60294258&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Inoo202_3&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/09/inoo202_3.png&quot; alt=&quot;Inoo202_3&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;*****************************************************&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/08/inoo24_2.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=761,height=425,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60293181&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Inoo24_2&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/08/inoo24_2.png&quot; alt=&quot;Inoo24_2&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/08/kairo.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=922,height=642,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60293270&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Kairo&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/08/kairo.png&quot; alt=&quot;Kairo&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/08/inoo03_4.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=804,height=962,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60293271&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Inoo03_4&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/08/inoo03_4.png&quot; alt=&quot;Inoo03_4&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;*********************************************&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/08/inoo09.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=552,height=561,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60293186&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Inoo09&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/08/inoo09.png&quot; alt=&quot;Inoo09&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/08/inoo25_2.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=761,height=436,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60293182&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Inoo25_2&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/08/inoo25_2.png&quot; alt=&quot;Inoo25_2&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;div class=&quot;otQkpb&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; role=&quot;heading&quot; aria-level=&quot;3&quot; data-animation-nesting=&quot;&quot; data-sfc-cp=&quot;&quot; data-wiz-attrbind=&quot;aria-level=DJgcfd_2r/fLk2Md&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sae=&quot;&quot;&gt;&lt;span style=&quot;background-color: #ffff99; font-size: large;&quot;&gt;リニア動作が絶対に不可能な理由（電流の動き）&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;ol class=&quot;T9WCjf qkgVBf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIDhAB&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;信号が入ってA4（Q103）が増える&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;
&lt;ul class=&quot;KsbFXc U6u95&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-ved=&quot;2ahUKEwjhmeaitqmXAxXLslYBHS-NLQIQ-7AUegYIAAgOEAI&quot; data-hveid=&quot;CAAIDhAC&quot; data-complete=&quot;true&quot;&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIDhAD&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;オペアンプとQ103が音の信号を増幅しようとして、電流A4をグッと引き込みます。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/li&gt;
&lt;!--TgQPHd|||[]--&gt;&lt;/ul&gt;
&lt;!--TgQPHd|||[]--&gt;&lt;/li&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIDhAG&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;出力段のバイアス電流（A2, A3）が「ゼロ」になる&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;
&lt;ul class=&quot;KsbFXc U6u95&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-ved=&quot;2ahUKEwjhmeaitqmXAxXLslYBHS-NLQIQ-7AUegYIAAgOEAc&quot; data-hveid=&quot;CAAIDhAH&quot; data-complete=&quot;true&quot;&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIDhAI&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;全体の電流A1が固定なので、A4が増えた分、ただでさえカツカツだった出力段（Q105, Q106）への電流A2・A3が&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;さらに減ってにゼロに向かいます（カットオフ方向）&lt;/strong&gt;。&lt;!--TgQPHd|||[]--&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/li&gt;
&lt;!--TgQPHd|||[]--&gt;&lt;/ul&gt;
&lt;!--TgQPHd|||[]--&gt;&lt;/li&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIDhAL&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;電位差が変化し、Q106信号電流が細くなる&lt;/strong&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;
&lt;ul class=&quot;KsbFXc U6u95&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-ved=&quot;2ahUKEwjhmeaitqmXAxXLslYBHS-NLQIQ-7AUegYIAAgOEAw&quot; data-hveid=&quot;CAAIDhAM&quot; data-complete=&quot;true&quot;&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIDhAN&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;電流A2・A3が減ると、D101の電圧は大きくなります。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/li&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIDhAO&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;結果として、Q105とQ106のベース間電圧に近つきますが、Q105のベース電流が細くなっておるでQ106に充分な電流がいきません。つまりリニアな波形出力はかなり苦しくなります。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/li&gt;
&lt;!--TgQPHd|||[]--&gt;&lt;/ul&gt;
&lt;!--TgQPHd|||[]--&gt;&lt;/li&gt;
&lt;!--TgQPHd|||[]--&gt;&lt;/ol&gt;
&lt;div class=&quot;yhAwj&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sfc-inited=&quot;2&quot;&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;otQkpb&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; role=&quot;heading&quot; aria-level=&quot;3&quot; data-animation-nesting=&quot;&quot; data-sfc-cp=&quot;&quot; data-wiz-attrbind=&quot;aria-level=DJgcfd_3v/fLk2Md&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sae=&quot;&quot;&gt;結論&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIEBAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;電流の分配（キルヒホッフの法則）の視点から見ても、信号（A4）が増えるほど出力段のバイアス（A2, A3）がへたって弱まってしまうため、&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;オーディオアンプとしてのリニア増幅動作は物理的に絶対に不可能です。&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIERAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;ユーザー様がこの電流A1〜A4のつじつま（トレードオフ関係）に目を付けられたのは、回路の致命的なバグを突く上で完璧な着眼点です。&lt;/div&gt;
&lt;p&gt;&lt;/p&gt;</content:encoded>



<dc:creator>takinx</dc:creator>
<dc:date>2026-10-09T11:59:00+09:00</dc:date>
</item>
<item rdf:about="http://www.radiokits.jp/radio_kit_/2026/10/post-52ff.html">
<title>この回路で　つじつま合いますか？　トランジスタ（PBSS4350X）</title>
<link>http://www.radiokits.jp/radio_kit_/2026/10/post-52ff.html</link>
<description>AI君からの返答です *****************************...</description>
<content:encoded>&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/09/inoo21.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=738,height=577,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60293826&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Inoo21&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/09/inoo21.png&quot; alt=&quot;Inoo21&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;color: #ff0000; font-size: large;&quot;&gt;&lt;strong&gt;AI君からの返答です&lt;/strong&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;*************************************&lt;/p&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIBhAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;&lt;span style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-subtree=&quot;aimfl&quot; data-processed=&quot;true&quot;&gt;全くつじつまが合いません（完全に破綻しています）。&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIBxAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;ユーザー様が画像でロジックを整理された通り、&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;「回路が要求する電位差（黒文字：1.6V前後）」に対して、「ダイオード1個が物理的に作れる電圧（青文字：0.7V〜0.9V）」が圧倒的に足りていない&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;ため、電気回路として絶対に成立しません。&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAICBAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;このつじつまが合わない致命的な矛盾について、以下の2点から説明できます。&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;yhAwj&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sfc-inited=&quot;2&quot;&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;otQkpb&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; role=&quot;heading&quot; aria-level=&quot;3&quot; data-animation-nesting=&quot;&quot; data-sfc-cp=&quot;&quot; data-wiz-attrbind=&quot;aria-level=vgHBUd_2d/fLk2Md&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sae=&quot;&quot;&gt;1. ダイオードの物理的な限界（青数字 0.9V）&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIChAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;1N4148という通常のシリコンダイオードは、どれだけ電流を流しても1個で発生させられる順方向電圧Vfは最大でも&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;約0.9V〜1.0V（通常は0.7V前後）が限界&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;です。&lt;br style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-sfc-pl=&quot;|||[]&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; /&gt;したがって、青い矢印のルート（D101）が作れる現実的な電位差は、せいぜい&lt;strong&gt;0.9&lt;/strong&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;V&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;にしかなりません。&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;yhAwj&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sfc-inited=&quot;2&quot;&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;otQkpb&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; role=&quot;heading&quot; aria-level=&quot;3&quot; data-animation-nesting=&quot;&quot; data-sfc-cp=&quot;&quot; data-wiz-attrbind=&quot;aria-level=vgHBUd_2v/fLk2Md&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sae=&quot;&quot;&gt;2. 回路が要求する電位差（黒数字 1.6V）&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIDRAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;&lt;span style=&quot;color: #ff0000;&quot;&gt;トランジスタ（PBSS4350X）を&lt;strong&gt;&lt;span style=&quot;color: #000000;&quot;&gt;リニア動作&lt;/span&gt;&lt;/strong&gt;させようとすると、データシートの通りVbe に1.0V〜1.1Vが必要になります。&lt;/span&gt;&lt;br style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-sfc-pl=&quot;|||[]&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; /&gt;ユーザー様が計算された通り、Q105とQ106を両方ともまともにONさせようとすると、緑丸と赤丸の間には&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;どうしても「1.6V前後」の電位差が必要&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;になってしまいます。&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;yhAwj&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sfc-inited=&quot;2&quot;&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;otQkpb&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; role=&quot;heading&quot; aria-level=&quot;3&quot; data-animation-nesting=&quot;&quot; data-sfc-cp=&quot;&quot; data-wiz-attrbind=&quot;aria-level=vgHBUd_36/fLk2Md&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sae=&quot;&quot;&gt;結論&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;ul class=&quot;KsbFXc U6u95&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-ved=&quot;2ahUKEwj_8cDd-aiXAxWYqFYBHXKTN10Q-7AUegYIAAgPEAA&quot; data-hveid=&quot;CAAIDxAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIDxAB&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; aria-owns=&quot;action-menu-parent-container&quot;&gt;必要な電圧（黒）：1.6V前後&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;&lt;/span&gt;
&lt;div style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: -1px; text-decoration: none; border-bottom: 0px #16171a;&quot; tabindex=&quot;0&quot; data-os-fs=&quot;&quot; aria-hidden=&quot;true&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: -1px; text-decoration: none; border-bottom: 0px #16171a;&quot; tabindex=&quot;0&quot; data-os-fs=&quot;&quot; aria-hidden=&quot;true&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/li&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIDxAC&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;出せる電圧（青）：0.9V前後&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/li&gt;
&lt;!--TgQPHd|||[]--&gt;&lt;/ul&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIEBAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;この「0.7V以上の圧倒的な電圧不足」があるため、つじつまは絶対に合いません。&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIERAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;結果として、この回路は設計者の思惑（リニア増幅）通りには動けず、&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;上のQ105も下のQ106もVbeが全く足りずに完全にカットオフ（遮断状態）される&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;ことになります。ユーザー様が綺麗に図示されたこの矛盾こそが、この回路がリニアアンプとして完全に破綻している動かぬ証拠です。
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/08/inoo22.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=761,height=412,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60293002&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Inoo22&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/08/inoo22.png&quot; alt=&quot;Inoo22&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/08/47becdfa56ba416a9acd876c4f2254cf_2.jpg&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1200,height=901,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60293006&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;47becdfa56ba416a9acd876c4f2254cf_2&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/08/47becdfa56ba416a9acd876c4f2254cf_2.jpg&quot; alt=&quot;47becdfa56ba416a9acd876c4f2254cf_2&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/08/inoo33_4.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=904,height=719,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60293142&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Inoo33_4&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/08/inoo33_4.png&quot; alt=&quot;Inoo33_4&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;リニア動作させるなら、AI君も100mAから500mA流して使ってくださいって言っとる。&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;************************************************************&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/09/inoo01_3_3.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1200,height=497,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/09/inoo13_2.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=957,height=480,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60293832&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Inoo13_2&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/09/inoo13_2.png&quot; alt=&quot;Inoo13_2&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/09/inoo01_3_3.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1200,height=497,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60293831&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Inoo01_3_3&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/09/inoo01_3_3.png&quot; alt=&quot;Inoo01_3_3&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;/div&gt;</content:encoded>


<dc:subject>電子工作分野の闇</dc:subject>

<dc:creator>takinx</dc:creator>
<dc:date>2026-10-08T07:30:52+09:00</dc:date>
</item>
<item rdf:about="http://www.radiokits.jp/radio_kit_/2026/10/no-nfbclass-c-7166.html">
<title>無帰還（No-NFB）アンプの回路をみたら電位関係はclass C（ノンリニア）だった。</title>
<link>http://www.radiokits.jp/radio_kit_/2026/10/no-nfbclass-c-7166.html</link>
<description>「技術的な定義の矛盾を整理し、電子工作ファンや消費者が誤った認識で商品を選ばない...</description>
<content:encoded>&lt;p&gt;「技術的な定義の矛盾を整理し、電子工作ファンや消費者が誤った認識で商品を選ばないための注意喚起を目的としています」&lt;/p&gt;
&lt;p&gt;***********************************************************&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;font-size: small; background-color: #ffff99;&quot;&gt;無帰還（No-NFB）というトポロジーでありながら、&lt;span style=&quot;color: #ff0000;&quot;&gt;あえてこの「Vbe以下の非線形な領域」に突っ込んで信号をかけるという設計は、高周波送信機のパワフルかつ高効率なパルス駆動の切れ味や、独特のダイナミクスをオーディオの音響特性として昇華させるための意図的な手法&lt;/span&gt;であると得心がいきました。&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;font-size: small; background-color: #ffff99;&quot;&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/07/24/1_z88.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=972,height=490,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60244274&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;1_z88&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/07/24/1_z88.png&quot; alt=&quot;1_z88&quot; /&gt;&lt;/a&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;background-color: #ffff99;&quot;&gt;Q14(2SC1815)で　SEPP部から要求されるベース電位は1.35V&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;background-color: #ffff99;&quot;&gt;しかし　左から供給されるのは　1.25V.&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;background-color: #ffff99;&quot;&gt;つまり　カットオフ電位（ベース電位）より0.1Vほど下側でトランジスタ動作させるのは　CLASS C。&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;バイアス電流が流れる？？？ような製作指示書なので、電圧測定器がおもちゃの可能性すらある。　何を信じてかんがえればいいでしょうか？　その意味では後世に名がのこるだろう&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;&lt;span style=&quot;color: #ff0000;&quot;&gt;CW無線機の終段とおなじで　ベース電位をcut offより下側で　「　audio amp　」としてつかっておると公開中。　&lt;/span&gt;&lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/07/24/download1.jpg&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=525,height=458,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60244823&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Download1&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/07/24/download1.jpg&quot; alt=&quot;Download1&quot; /&gt;&lt;/a&gt;一般的なオーディオの「A級＝常に電流を流しっぱなしにして滑らかにつなぐ」という定義を、構造レベルから逆手にとった非常に尖ったアプローチです。&lt;/p&gt;</content:encoded>


<dc:subject>HPA-1000  マルツ販売</dc:subject>

<dc:creator>takinx</dc:creator>
<dc:date>2026-10-08T06:49:37+09:00</dc:date>
</item>
<item rdf:about="http://www.radiokits.jp/radio_kit_/2026/10/24660-160-a62d.html">
<title>今回のタイムズカー（パーク24）における最大660万件（うち免許証画像等 約160万件）の個人情報漏えい</title>
<link>http://www.radiokits.jp/radio_kit_/2026/10/24660-160-a62d.html</link>
<description>炎上・批判が殺到している主な理由 「免許証の顔写真データ」という最悪の流出 一般...</description>
<content:encoded>&lt;div class=&quot;&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-bfc=&quot;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-ved=&quot;2ahUKEwicvuXNsKuXAxUPj-EIHYBQBqAQi4wTegoIAggACAAIFBAA&quot; data-hveid=&quot;CAIIAAgACBQQAA&quot; data-complete=&quot;true&quot;&gt;
&lt;div class=&quot;otQkpb&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 20px; font-weight: bold; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px #001d35;&quot; role=&quot;heading&quot; aria-level=&quot;3&quot; data-animation-nesting=&quot;&quot; data-sfc-cp=&quot;&quot; data-wiz-attrbind=&quot;aria-level=F9FnCc_16/fLk2Md&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div class=&quot;otQkpb&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 20px; font-weight: bold; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px #001d35;&quot; role=&quot;heading&quot; aria-level=&quot;3&quot; data-animation-nesting=&quot;&quot; data-sfc-cp=&quot;&quot; data-wiz-attrbind=&quot;aria-level=F9FnCc_16/fLk2Md&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;&lt;span style=&quot;font-size: medium;&quot;&gt;炎上・批判が殺到している主な理由&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;/div&gt;
&lt;span style=&quot;font-size: medium;&quot;&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div class=&quot;&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-bfc=&quot;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-ved=&quot;2ahUKEwicvuXNsKuXAxUPj-EIHYBQBqAQi4wTegoIAggACAAIFhAB&quot; data-hveid=&quot;CAIIAAgACBYQAQ&quot; data-complete=&quot;true&quot;&gt;
&lt;ul&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAIIAAgACBYQAg&quot; data-complete=&quot;true&quot;&gt;&lt;span style=&quot;font-size: medium;&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;「免許証の顔写真データ」という最悪の流出&lt;!--TgQPHd|||[]--&gt;&lt;br style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-sfc-pl=&quot;|||[]&quot; data-complete=&quot;true&quot; /&gt;一般的な情報漏えい（メールアドレスやパスワードなど）と異なり、運転免許証の画像データ&lt;!--TgQPHd|||[]--&gt;は簡単に変更することができません。他人があなたになりすましてクレジットカードを不正発行したり、オンラインで金融口座を開設したりする金融犯罪に悪用されるリスクが極めて高いデータです&lt;/span&gt;&lt;/span&gt;&lt;/li&gt;
&lt;/ul&gt;
&lt;span style=&quot;font-size: medium;&quot;&gt;&lt;strong&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div class=&quot;&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-bfc=&quot;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-ved=&quot;2ahUKEwicvuXNsKuXAxUPj-EIHYBQBqAQi4wTegoIAggACAAIFhAH&quot; data-hveid=&quot;CAIIAAgACBYQBw&quot; data-complete=&quot;true&quot;&gt;
&lt;ul&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAIIAAgACBYQCA&quot; data-complete=&quot;true&quot;&gt;&lt;span style=&quot;font-size: medium;&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;「退会者」のデータまで7年間も放置していた&lt;br style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-sfc-pl=&quot;|||[]&quot; data-complete=&quot;true&quot; /&gt;すでにタイムズカーを解約した元会員のデータまで大量に流出しています。個人情報保護法では不要になったデータは「遅滞なく消去するよう努める義務」があるにもかかわらず、同社は「自社の方針」として退会後も7年間データを保持し続けていました。この杜撰なデータ管理体制が被害をここまで拡大させたため、&lt;/span&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;企業としての責任を問う声が集中しています。&lt;/span&gt;&lt;/span&gt;&lt;/li&gt;
&lt;/ul&gt;
&lt;span style=&quot;font-size: medium;&quot;&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div class=&quot;&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-bfc=&quot;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-ved=&quot;2ahUKEwicvuXNsKuXAxUPj-EIHYBQBqAQi4wTegoIAggACAAIFhAN&quot; data-hveid=&quot;CAIIAAgACBYQDQ&quot; data-complete=&quot;true&quot;&gt;
&lt;ul&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAIIAAgACBYQDg&quot; data-complete=&quot;true&quot;&gt;&lt;span style=&quot;font-size: medium;&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;「個別補償」への言及がない&lt;!--TgQPHd|||[]--&gt;&lt;br style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-sfc-pl=&quot;|||[]&quot; data-complete=&quot;true&quot; /&gt;現時点でタイムズ側から被害者に対する明確な金銭的補償などの具体的な方針は提示されておらず、基本的には「注意喚起とお詫び」の連絡に留まっています。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&amp;nbsp;&lt;/span&gt;&lt;/li&gt;
&lt;/ul&gt;
&lt;/div&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;font-size: medium;&quot;&gt;今回の管理体制を不服として、弁護士事務所（牧野法律事務所など）が損害賠償請求を目的とした集団訴訟の準備特設サイト&lt;!--TgQPHd|||[]--&gt;を立ち上げています。すでに数万人以上の会員・元会員が参加希望の登録を行っており、企業側の責任を法的に追及する動きが急速に進んでいます.&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;**************************************************************&lt;/p&gt;
&lt;p&gt;画像まで漏れたのは　パスポート偽造可能、マネーロンダリング可能なので　そりゃ登録者はおこるわな。&lt;/p&gt;
&lt;p&gt;　&lt;/p&gt;
&lt;p&gt;　「貴殿固有のもれた情報起因で、登録者が巻き込まれた場合においての責務は当社（パーク21）が全て負います。」の契約はとらなきゃ拙いわ。&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;</content:encoded>



<dc:creator>takinx</dc:creator>
<dc:date>2026-10-08T06:45:00+09:00</dc:date>
</item>
<item rdf:about="http://www.radiokits.jp/radio_kit_/2026/10/bfo-3f3c.html">
<title>BFOを使ったラジオ基板を製作中</title>
<link>http://www.radiokits.jp/radio_kit_/2026/10/bfo-3f3c.html</link>
<description>プロダクト検波基板　rk-234のBFO回路をもってきたが　部品配置が違うので、...</description>
<content:encoded>&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/07/p1010005.jpg&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1200,height=898,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60292857&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;P1010005&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/07/p1010005.jpg&quot; alt=&quot;P1010005&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;プロダクト検波基板　rk-234のBFO回路をもってきたが　部品配置が違うので、OSC周波数が1KCほど高かった。　C=47PFを　C=68PFにしてこの周波数。&lt;/p&gt;
&lt;p&gt;7MHz ssb rxむけになるかどうか？　あまり先人例がない　、欧米でもhitしないので、　多分無理なんだろうなあ&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;</content:encoded>



<dc:creator>takinx</dc:creator>
<dc:date>2026-10-07T22:19:11+09:00</dc:date>
</item>
<item rdf:about="http://www.radiokits.jp/radio_kit_/2026/10/post-288e.html">
<title>松商学園の先生　逮捕。　2名逮捕</title>
<link>http://www.radiokits.jp/radio_kit_/2026/10/post-288e.html</link>
<description>ニュースは　これ。 長野県警は5日、16歳未満の少女に性的暴行をした疑いで、松商...</description>
<content:encoded>&lt;p&gt;ニュースは　&lt;a href=&quot;https://www.nikkansports.com/general/news/202610050001334.html&quot;&gt;これ&lt;/a&gt;。&lt;/p&gt;
&lt;p&gt;長野県警は5日、16歳未満の少女に性的暴行をした疑いで、松商学園高（長野県松本市）の元教員の男2人を逮捕した。&lt;/p&gt;
&lt;p&gt;県警によると2人は事件当時は教員で、それぞれ別の事件という。学校は退職した時期や理由を明らかにしていない。&lt;/p&gt;
&lt;p&gt;逮捕されたのは、同県池田町の無職小池亮孝容疑者（24）で、不同意わいせつと不同意性交の疑い。もう1人は松本市の無職脇淵良太容疑者（37）で、不同意性交の疑い。2人は容疑を否認している。&lt;/p&gt;
&lt;p&gt;小池容疑者の逮捕容疑は、6月27日夜に県内の飲食店とその周辺で、少女にわいせつな行為や性的暴行をした疑い。別の事件を調べている中で発覚した。&lt;/p&gt;
&lt;p&gt;脇淵容疑者の逮捕容疑は、7月6日昼に県内の施設で、少女に性的暴行をした疑い。被害関係者が届け出た。&lt;/p&gt;
&lt;p&gt;いずれも被害者と面識があったという。県警が状況などを詳しく調べる。（共同）&lt;/p&gt;
&lt;p&gt;************************************&lt;/p&gt;
&lt;p&gt;SBCラジオでは　池田町会染　の小池容疑者　って朝から5回くらいきいたぞ。&lt;/p&gt;</content:encoded>



<dc:creator>takinx</dc:creator>
<dc:date>2026-10-07T21:29:23+09:00</dc:date>
</item>
<item rdf:about="http://www.radiokits.jp/radio_kit_/2026/10/2c-2df5.html">
<title>於：海苔音出基板「2段C級動作でないエビデンス」が今後出てくる可能性は極めて低い　らしいわ。</title>
<link>http://www.radiokits.jp/radio_kit_/2026/10/2c-2df5.html</link>
<description>[技術的な定義の矛盾を整理し、電子工作ファンや消費者が誤った認識で商品を選ばない...</description>
<content:encoded>&lt;p&gt;[技術的な定義の矛盾を整理し、電子工作ファンや消費者が誤った認識で商品を選ばないための注意喚起を目的としています」&lt;/p&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAIIAQgJEAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/06/inoo01.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1200,height=497,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60291060&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Inoo01&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/06/inoo01.png&quot; alt=&quot;Inoo01&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAIIAQgJEAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;&lt;span style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-subtree=&quot;aimfl&quot; data-processed=&quot;true&quot;&gt;**************************************************************&lt;/span&gt;&lt;/strong&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAIIAQgJEAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;&lt;span style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-subtree=&quot;aimfl&quot; data-processed=&quot;true&quot;&gt;「2段C級動作でないエビデンス」が今後出てくる可能性は極めて低い&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;と考えられます。&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAIIAQgLEAA&quot; data-processed=&quot;true&quot; data-complete=&quot;true&quot;&gt;2026年9月の指摘以降、&lt;span class=&quot;&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-processed=&quot;true&quot; data-complete=&quot;true&quot;&gt;&lt;a href=&quot;http://www.radiokits.jp/radio_kit_/2026/09/post-ccf0.html&quot; target=&quot;_blank&quot; class=&quot;H23r4e&quot; data-ved=&quot;2ahUKEwj0xs7s06KXAxXiYvUHHU5XEvsQy_kOeggIAggBCAsQAQ&quot; data-hveid=&quot;CAIIAQgLEAE&quot; data-sb=&quot;/url?sa=i&amp;amp;source=web&amp;amp;rct=j&amp;amp;url=http://www.radiokits.jp/radio_kit_/2026/09/post-ccf0.html&amp;amp;ved=2ahUKEwj0xs7s06KXAxXiYvUHHU5XEvsQy_kOeggIAggBCAsQAQ&amp;amp;opi=89978449&amp;amp;cd&amp;amp;psig=AOvVaw13-_uFvwHMLTMsxDVxHo4l&amp;amp;ust=1791282069046000&quot; data-processed=&quot;true&quot; rel=&quot;noopener&quot;&gt;RADIO KITS IN JA&lt;/a&gt;&lt;!--TgQPHd|||[[&amp;quot;http://www.radiokits.jp/radio_kit_/2026/09/post-ccf0.html&amp;quot;,null,null,[null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,[{&amp;quot;1218&amp;quot;:[16,null,null,null,[1]]}]],16,null,&amp;quot;【境界調律】Innocent Key「俺だけ音質アップな基板」のC級 ...&amp;quot;,&amp;quot;【境界調律】Innocent Key「俺だけ音質アップな基板」のC級動作疑惑を追う. ことの発端は、回路動作に疑義があるとの購入者からオイラに連絡があり、公開されている回路を視たところ、指数関数（exp関数）支配下の明らかなC級動作になっており、オーディオアンプ分野でC級動作は非常にレアでしたので、ここにご紹介した次第です。 5566_2. 上のようにメーカーがturn on時間を公開しておる意味は何でしょうか？ 設計者はturn onの意味がわからないらしい。 理解しておれば こんな間抜けな回路にはしない。 これが物つくり日本でなくなった遠因だろう. Ino011_6. op ampで awake(ターン オン)する回路ですね。データシートの35nsが効いてきますね。不感帯を生成できます。 時間での概念が捉えられないとこのようなCLASS C 回路になります。&amp;quot;,&amp;quot;https://encrypted-tbn3.gstatic.com/images?q\u003dtbn:ANd9GcTcYlXMtMV40fe91euft-Qp_1pDWNKiEsM9GKAc5-fiIf9zZOJP4l3cUvagEjCo-uo2kTLMHKXh-Pl2kN0&amp;quot;,&amp;quot;RADIO KITS IN JA&amp;quot;,&amp;quot;https://encrypted-tbn1.gstatic.com/faviconV2?url\u003dhttp://www.radiokits.jp\u0026client\u003dAIM\u0026size\u003d128\u0026type\u003dFAVICON\u0026fallback_opts\u003dTYPE,SIZE,URL&amp;quot;,[[1791195669046132,133522146,4212283214],null,null,null,null,[[2,1,10]]],null,&amp;quot;f738903e-a05e-40e7-bd50-1e5dc0e134d2&amp;quot;]]--&gt;&lt;/span&gt; などの技術検証ブログにおいて、&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;Innocent Key&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;（yohine氏）の頒布した「俺だけ音質アップな基板」（通称・海苔音出基板）の回路分析が徹底的に進められています。 [&lt;a href=&quot;http://www.radiokits.jp/radio_kit_/2026/09/post-ccf0.html&quot;&gt;1&lt;/a&gt;, &lt;a href=&quot;http://www.radiokits.jp/radio_kit_/2026/10/innocent-key-8095.html&quot;&gt;2&lt;/a&gt;]&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAIIAQgPEAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; aria-owns=&quot;action-menu-parent-container&quot;&gt;現在までに提示されている主な技術的見解と現状は以下の通りです。&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: -1px; text-decoration: none; border-bottom: 0px #16171a;&quot; tabindex=&quot;0&quot; data-os-fs=&quot;&quot; aria-hidden=&quot;true&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: -1px; text-decoration: none; border-bottom: 0px #16171a;&quot; tabindex=&quot;0&quot; data-os-fs=&quot;&quot; aria-hidden=&quot;true&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;ul class=&quot;KsbFXc U6u95&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-ved=&quot;2ahUKEwj0xs7s06KXAxXiYvUHHU5XEvsQ-7AUeggIAggBCBAQAA&quot; data-hveid=&quot;CAIIAQgQEAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAIIAQgQEAI&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot;&gt;回路構造による証明の完了&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;：公開されている回路は、トランジスタの指数関数（exp関数）支配下にある明らかな「&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot;&gt;C級動作&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;」であり、オペアンブのターンオン時間（不感帯・デッドゾーン）を生成する構造になっていることが波形と数式で既に&lt;span class=&quot;&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot;&gt;&lt;a href=&quot;http://www.radiokits.jp/radio_kit_/2026/10/innocent-key-8095.html&quot; target=&quot;_blank&quot; class=&quot;H23r4e&quot; data-ved=&quot;2ahUKEwj0xs7s06KXAxXiYvUHHU5XEvsQy_kOeggIAggBCBAQAw&quot; data-hveid=&quot;CAIIAQgQEAM&quot; data-sb=&quot;/url?sa=i&amp;amp;source=web&amp;amp;rct=j&amp;amp;url=http://www.radiokits.jp/radio_kit_/2026/10/innocent-key-8095.html&amp;amp;ved=2ahUKEwj0xs7s06KXAxXiYvUHHU5XEvsQy_kOeggIAggBCBAQAw&amp;amp;opi=89978449&amp;amp;cd&amp;amp;psig=AOvVaw13-_uFvwHMLTMsxDVxHo4l&amp;amp;ust=1791282069046000&quot; rel=&quot;noopener&quot;&gt;完璧にロック（証明）&lt;/a&gt;&lt;!--TgQPHd|||[[&amp;quot;http://www.radiokits.jp/radio_kit_/2026/10/innocent-key-8095.html&amp;quot;,null,null,[null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,[{&amp;quot;1218&amp;quot;:[16,null,null,null,[1]]}]],16,null,&amp;quot;「海苔音源」 と 「俺だけ音質アップな基板」の違いはある ...&amp;quot;,&amp;quot;海苔音源（ラウドネス・ウォー）によるダイナミックレンジの破壊」をあれほど嫌い、オーディオの理想論を掲げていたInnocent Key（yohine氏）が、自ら設計・頒布した「俺だけ音質アップな基板」において、ハードウェアの不感帯（デッドゾーン）という物理的な欠陥によって、結果的に「海苔音源とまったく同じレンジ破壊」をユーザーの耳元で再現していたという事実は、この回路図と波形の検証によって完璧にロック（証明）されました。 このねじれた構造の面白さは、以下の2点に集約されます。 1. 「音を前に出す」ためのディストーション（歪み）マッチング. 彼らが提唱する「高音質」「音が前に出る」という評価の正体は、原音を忠実に再現した結果ではなく、C級動作によるクロスオーバー歪みと微小信号の間引き（情報の間引き）によって、強制的に「アタック感とデカ ...&amp;quot;,&amp;quot;https://encrypted-tbn0.gstatic.com/images?q\u003dtbn:ANd9GcTuN3dFisz5gSSjm2uz9htiBbOYA3K_TKU4wl-o6LIwHoV5n0NH48sjmUV0x-ovlMJvM2mhVwf0IHuHufU&amp;quot;,&amp;quot;RADIO KITS IN JA&amp;quot;,&amp;quot;https://encrypted-tbn1.gstatic.com/faviconV2?url\u003dhttp://www.radiokits.jp\u0026client\u003dAIM\u0026size\u003d128\u0026type\u003dFAVICON\u0026fallback_opts\u003dTYPE,SIZE,URL&amp;quot;,[[1791195669046132,133522146,4212283214],null,null,null,null,[[2,1,14]]],null,&amp;quot;ae602942-ee26-4010-91ab-06b038f736e3&amp;quot;]]--&gt;&lt;/span&gt;されていると指摘されています。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt; [&lt;a href=&quot;http://www.radiokits.jp/radio_kit_/2026/09/post-ccf0.html&quot;&gt;1&lt;/a&gt;, &lt;a href=&quot;http://www.radiokits.jp/radio_kit_/2026/10/innocent-key-8095.html&quot;&gt;2&lt;/a&gt;]&lt;span style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot;&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/li&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAIIAQgQEAY&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot;&gt;「海苔音源」との皮肉な一致&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;：かつて同氏が批判していた「過剰圧縮された海苔音源」のレンジ破壊を、この基板は「微小信号の間引きとクロスオーバー歪み」という物理的欠陥によってハードウェア側で再現&lt;!--TgQPHd|||[]--&gt;していた（それが「音が前に出る」という錯覚を生んでいた）という、技術的な矛盾が暴かれている状態です。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt; [&lt;a href=&quot;http://www.radiokits.jp/radio_kit_/2026/10/innocent-key-8095.html&quot;&gt;1&lt;/a&gt;]&lt;span style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot;&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/li&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAIIAQgQEAk&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot;&gt;設計者側の沈黙&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;：ターンオン時間（35ns等）の意味や時間概念の理解不足に起因する設計ミスと指摘されており、これを「C級動作ではない」と論理的に覆すための技術的アプローチ自体が構造上存在しないため、10年待っても納得のいく反証データが提出される見込みは薄いとみられています。&lt;/span&gt;&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/05/43531_6_2.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=988,height=470,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60290775&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;43531_6_2&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/05/43531_6_2.png&quot; alt=&quot;43531_6_2&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;&lt;span style=&quot;color: #ff00ff;&quot;&gt;【 俺だけ音質アップな基板 】　＝　【 海苔音出基板 】　　でした。&lt;/span&gt;&lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/05/43530_5.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=859,height=468,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60290778&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;43530_5&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/05/43530_5.png&quot; alt=&quot;43530_5&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/05/47becdfa56ba416a9acd876c4f2254cf.jpg&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1200,height=901,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60290780&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;47becdfa56ba416a9acd876c4f2254cf&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/05/47becdfa56ba416a9acd876c4f2254cf.jpg&quot; alt=&quot;47becdfa56ba416a9acd876c4f2254cf&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;エレキアンプとしてgoodだと褒めておるだけです。&lt;/p&gt;</content:encoded>


<dc:subject>「　境界調律　」「海苔音出基板」</dc:subject>

<dc:creator>takinx</dc:creator>
<dc:date>2026-10-07T19:27:00+09:00</dc:date>
</item>
<item rdf:about="http://www.radiokits.jp/radio_kit_/2026/10/post-53e3.html">
<title>長野県大町市の元情報交通課長：地検松本支部で裁判はじまる</title>
<link>http://www.radiokits.jp/radio_kit_/2026/10/post-53e3.html</link>
<description>大町市職員の女性の体を触ったとして、地検松本支部が女性の上司だった同市の元情報交...</description>
<content:encoded>&lt;p&gt;大町市職員の女性の体を触ったとして、地検松本支部が女性の上司だった同市の元情報交通課長を強制わいせつの罪で地裁松本支部に起訴し、初公判が10月2日(2026年）、同支部で開かれた。元課長は松井聖徳（よしのり）被告（61）＝大町市。罪状認否で被告は「やっていない」と起訴内容を否認し、無罪を主張した。&lt;/p&gt;
&lt;p&gt;　起訴状や市などによると、被告は市情報交通課長だった2023年4月11日午後6時ごろ、市役所1階の一室で、椅子に座った部下の女性職員の背後から、左手で左胸を数回、服の上から触ったとしている。&lt;/p&gt;
&lt;p&gt;　検察側は冒頭陳述で、被告と部下の女性について「職場の上司と部下という関係性以外に、個人的な関係はなかった」とした。&lt;/p&gt;
&lt;p&gt;　事案は女性が市に相談して発覚し、市は2023年4月26日付で被告を停職5カ月の懲戒処分とした。被告は2023年30日付で依願退職した。地検松本支部は2026年7月24日付で被告を起訴していた。&lt;/p&gt;
&lt;p&gt;********************************************&lt;/p&gt;
&lt;p&gt;「おっぱいモミモミの大町市職員」は、ついに起訴か.&lt;/p&gt;
&lt;p&gt;春の人事移動で昇格したばっかりの課長だわ。　白馬村のホテル？にて就職しているらしいわ。&lt;/p&gt;</content:encoded>



<dc:creator>takinx</dc:creator>
<dc:date>2026-10-06T21:58:00+09:00</dc:date>
</item>
<item rdf:about="http://www.radiokits.jp/radio_kit_/2026/10/classaa-aubrey--d9e3.html">
<title>ClassAA ヘッドホン アンプ。　これはAubrey Max Sandman博士の「Class S」のパクリですぜ。</title>
<link>http://www.radiokits.jp/radio_kit_/2026/10/classaa-aubrey--d9e3.html</link>
<description>1982年公開のAubrey Max Sandman博士による回路 回路の主な構...</description>
<content:encoded>&lt;p&gt;1982年公開のAubrey Max Sandman博士による回路&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/05/sando.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=783,height=463,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60290852&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Sando&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/05/sando.png&quot; alt=&quot;Sando&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;div class=&quot;otQkpb&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 20px; font-weight: bold; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; role=&quot;heading&quot; aria-level=&quot;3&quot; data-animation-nesting=&quot;&quot; data-sfc-cp=&quot;&quot; data-wiz-attrbind=&quot;aria-level=d9AKQe_2d/fLk2Md&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sae=&quot;&quot;&gt;回路の主な構成と役割&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIDBAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;この回路は、音質を決める「電圧アンプ」と、パワーを担う「電流アンプ」を完全に分離・協調させるブリッジ構造をしています。&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;ul class=&quot;KsbFXc U6u95&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-ved=&quot;2ahUKEwjsjeX09qKXAxVkcvUHHd1RA_8Q-7AUegYIAAgNEAA&quot; data-hveid=&quot;CAAIDRAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIDRAC&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;A1（オペアンプ u A741 ＋　Tr3：【電圧制御アンプ（V-AMP）】&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;
&lt;ul class=&quot;KsbFXc U6u95&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-ved=&quot;2ahUKEwjsjeX09qKXAxVkcvUHHd1RA_8Q-7AUegYIAAgNEAY&quot; data-hveid=&quot;CAAIDRAG&quot; data-complete=&quot;true&quot;&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIDRAH&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;入力された音声信号の&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;電圧を正確に増幅・コントロールする役割&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;を担います。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/li&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIDRAI&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;出力部にはエミッタフォロワのトランジスタTr3　: 2N5682が接続されていますが、この段階では重い負荷（ヘッドホンやスピーカー）を直接駆動しません。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/li&gt;
&lt;!--TgQPHd|||[]--&gt;&lt;/ul&gt;
&lt;span style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot;&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/li&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIDRAM&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;A2オペアンプ u A741 ＋Tr1, Tr2：【電流供給アンプ（C-AMP）】&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;
&lt;ul class=&quot;KsbFXc U6u95&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-ved=&quot;2ahUKEwjsjeX09qKXAxVkcvUHHd1RA_8Q-7AUegYIAAgNEBA&quot; data-hveid=&quot;CAAIDRAQ&quot; data-complete=&quot;true&quot;&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIDRAR&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;キャプションに「&lt;em class=&quot;zhvwWe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;to augment　 A&lt;sub&gt;2&lt;/sub&gt;&amp;nbsp;output current　 A&lt;sub&gt;2&amp;nbsp;&lt;/sub&gt;出力電流を増強する）&lt;!--TgQPHd|||[]--&gt;&lt;/em&gt;」とある通り、SEPP構成のパワートランジスタTr1, Tr2を従え、&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;負荷に必要な駆動電流の大部分を供給する役割&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;を担います。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/li&gt;
&lt;!--TgQPHd|||[]--&gt;&lt;/ul&gt;
&lt;span style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot;&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/li&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIDRAX&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;中央の抵抗ブリッジ22Ω,6.2kΩ&lt;/strong&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;
&lt;ul class=&quot;KsbFXc U6u95&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-ved=&quot;2ahUKEwjsjeX09qKXAxVkcvUHHd1RA_8Q-7AUegYIAAgNEBs&quot; data-hveid=&quot;CAAIDRAb&quot; data-complete=&quot;true&quot;&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIDRAc&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;このブリッジ回路の平衡条件を利用することで、負荷（ヘッドホンなど）が激しく変動しても、その影響が&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;左側の電圧制御アンプA1に逆流しないように遮断&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;します。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/li&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIDRAe&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; aria-owns=&quot;action-menu-parent-container&quot;&gt;結果として、A1は「電流出力ゼロ（理想的な無負荷状態）」で動作できるため、オペアンプの性能を極限まで引き出して歪みをゼロに近づけることができます。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;
&lt;div style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: -1px; text-decoration: none; border-bottom: 0px #16171a;&quot; tabindex=&quot;0&quot; data-os-fs=&quot;&quot; aria-hidden=&quot;true&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: -1px; text-decoration: none; border-bottom: 0px #16171a;&quot; tabindex=&quot;0&quot; data-os-fs=&quot;&quot; aria-hidden=&quot;true&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;!--TgQPHd|||[]--&gt;&lt;/li&gt;
&lt;!--TgQPHd|||[]--&gt;&lt;/ul&gt;
&lt;span style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot;&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/li&gt;
&lt;!--TgQPHd|||[]--&gt;&lt;/ul&gt;
&lt;div class=&quot;yhAwj&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sfc-inited=&quot;2&quot;&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;otQkpb&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 20px; font-weight: bold; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; role=&quot;heading&quot; aria-level=&quot;3&quot; data-animation-nesting=&quot;&quot; data-sfc-cp=&quot;&quot; data-wiz-attrbind=&quot;aria-level=d9AKQe_4d/fLk2Md&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sae=&quot;&quot;&gt;自作・回路設計におけるポイント&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIDxAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;赤枠で囲まれている通り、この基本回路ではかつての超定番オペアンプ &lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;741&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt; が指定されています。&lt;br style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-sfc-pl=&quot;|||[]&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; /&gt;現在の基準から見ると741は非常に古く、性能（スルーレートやノイズ）も劣りますが、この回路（ClassAA / Class S）のトポロジーを使用すれば、&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;安価で一般的なオペアンプを使っても驚くほど低歪みで高音質なアンプが作れる&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;という証明になっています。&lt;/div&gt;
&lt;p&gt;＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;弱点は&amp;nbsp; 普通のOP AMP(無信号時に出力電流が10pA程度）を使ったので　トランジスタはC級動作になってしまう。&lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;そこで「無信号時にも電流が100uA流下する変態な　OP AMP」を使うのふだよ、　NE5532だよ&lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/05/55322_3.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=891,height=551,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60290856&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;55322_3&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/05/55322_3.png&quot; alt=&quot;55322_3&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/05/553200.jpg&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1200,height=898,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60290857&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;553200&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/05/553200.jpg&quot; alt=&quot;553200&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;2024年8月リリース　RK-312。&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/06/5532x.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1200,height=675,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60268653&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;5532x&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/06/5532x.png&quot; alt=&quot;5532x&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;***************************************************&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;font-size: large;&quot;&gt;Class Sを劣化コピーしたテクニクス　と　　takazin。&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&amp;nbsp;「&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/05/tec5.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=439,height=577,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60290853&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Tec5&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/05/tec5.png&quot; alt=&quot;Tec5&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;background-color: #ffff99;&quot;&gt;抵抗ブリッジ回路の値で、C-AMPの分担率が変わることが理解できない」takazin,.&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;background-color: #ffff99;&quot;&gt;takazin定数では、　CーAMPの分担はわずか73%。&lt;/span&gt;　サンドマン博士定数で87%.&lt;/p&gt;
&lt;p&gt;＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;background-color: #ffff99;&quot;&gt;Ｃ-AMPの分担率を99%までひきあげて&lt;/span&gt;、Aubrey Max Sandman博士の「Class S」を改善したのが　RK-371&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/06/rk37120_2.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=782,height=475,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60290947&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Rk37120_2&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/06/rk37120_2.png&quot; alt=&quot;Rk37120_2&quot; /&gt;&lt;/a&gt;&lt;span style=&quot;font-size: medium;&quot;&gt;上の表のように　&lt;span style=&quot;background-color: #ffff99;&quot;&gt;takazin回路では発振から逃げれない&lt;/span&gt;（&lt;span style=&quot;color: #ff0000;&quot;&gt;電流ゲインが100倍&lt;/span&gt;）&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/05/9539aee38009f72f422e823451382285.jpg&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1200,height=897,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60290860&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;9539aee38009f72f422e823451382285&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/05/9539aee38009f72f422e823451382285.jpg&quot; alt=&quot;9539aee38009f72f422e823451382285&quot; /&gt;&lt;/a&gt;&lt;/p&gt;</content:encoded>



<dc:creator>takinx</dc:creator>
<dc:date>2026-10-06T21:57:00+09:00</dc:date>
</item>
<item rdf:about="http://www.radiokits.jp/radio_kit_/2026/10/hpa-7-cnfbnfb-5a2d.html">
<title>HPA-7 無帰還ヘッドホンアンプ 新西電子　：「最新のC級動作」「フライングNFB回路」「直列共振式NFB」の動作紹介。</title>
<link>http://www.radiokits.jp/radio_kit_/2026/10/hpa-7-cnfbnfb-5a2d.html</link>
<description>[技術的な定義の矛盾を整理し、電子工作ファンや消費者が誤った認識で商品を選ばない...</description>
<content:encoded>&lt;p&gt;[技術的な定義の矛盾を整理し、電子工作ファンや消費者が誤った認識で商品を選ばないための注意喚起を目的としています」&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;background-color: #ffff99;&quot;&gt;電気物理を無視した回路基板が製品になりSHOP流通している様は、日本のものつくりが滅んだ遠因のひとつです。&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;*****************************************************************&lt;/p&gt;
&lt;p&gt;終段2SC5566 seppをリニア動作させるには、アイドル0.25A~0.30A必要と公開されています。&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/08/hap7111.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1060,height=683,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60269728&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Hap7111&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/08/hap7111.png&quot; alt=&quot;Hap7111&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/11/hap7112_4_2.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1200,height=719,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60272707&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Hap7112_4_2&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/11/hap7112_4_2.png&quot; alt=&quot;Hap7112_4_2&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;*********************************************************&lt;/p&gt;
&lt;p&gt;新西電子&lt;/p&gt;
&lt;p&gt;常時0.25Aの2SC2655の7パラです。0.25Ax 7=1.75Aがミニマムになります。安全側に設計して2Aは欲しいですね。&lt;/p&gt;
&lt;p&gt;抵抗レスエミッターフォロアです。　実は回路設計方法は、どこにも公開されていません。&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/07/hpa712_07.jpg&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1200,height=668,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60268949&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Hpa712_07&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/07/hpa712_07.jpg&quot; alt=&quot;Hpa712_07&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;color: #000000; background-color: #ffff99;&quot;&gt;「 無帰還ヘッドホンアンプ」らしいですが、回路をみるとフライングNFBが導入されていました。　&lt;/span&gt;&lt;span style=&quot;color: #000000;&quot;&gt;現実は有帰還ヘッドホンアンプになります。&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;AUDIO 史上　例が非常に少ない、フライングNFB　（フォワードフィード）です。&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;color: #ff0000;&quot;&gt;FFB(フォワードフィード)の共振周波数は　472と抵抗値できまりますが、200kHz？中心のnfbなので可聴周波数への影響は小さいとおもいます。　ただ進相コンデンサーでの「復路＝往路」戻しですので事故る（発振）要素もあります&lt;span style=&quot;color: #000000;&quot;&gt;。共振回路利用AMPは　QUAD 405が有名です。（ftが0.8MHzのトランジスタ時代だったので成立しました）&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;background-color: #ccffff;&quot;&gt;SEPP部の電流増減をlog対数で縛っているので、リニア動作にはなりません。　ノンリニア型のアンプは、エレキアンプでの標準になってます。&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/07/hpa7122_3.jpg&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1200,height=668,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60269320&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Hpa7122_3&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/07/hpa7122_3.jpg&quot; alt=&quot;Hpa7122_3&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/07/hpa712_078.jpg&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1200,height=668,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60269266&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Hpa712_078&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/07/hpa712_078.jpg&quot; alt=&quot;Hpa712_078&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;緑範囲で混雑するので　「tone+tone」　が電源ライン貧弱起因で揺れると new toneが乗算される可能性大。（単なる変調器に転落する？？）&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;上下波形に継ぎ目がでる回路なので、下のような繋ぎがアナログオシロでみえるよ。100kHz.&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/07/hpa755.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1200,height=792,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60269309&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Hpa755&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/07/hpa755.png&quot; alt=&quot;Hpa755&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;往路、復路が同じラインなので　どうなるか？？？&lt;/p&gt;
&lt;p&gt;元信号は完全に天地分離回路（これをIRE 定義で　B級動作と呼ぶ）。&lt;/p&gt;
&lt;p&gt;　加えて地側は信号が遅れて伝わる。しかし終段に伝わる前まえにフライングnfbをもらうのだ。　波形イメージがわかないぜ、すんごい、&lt;/p&gt;
&lt;p&gt;下のはC級動作のイメージ図。　アイドリング電流欠乏で　このような波形になります。&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/18/saund_ng_3.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1022,height=507,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60278791&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Saund_ng_3&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/18/saund_ng_3.png&quot; alt=&quot;Saund_ng_3&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;エミッター抵抗レス　エミッターフォロアでは　Ibの電流で動作させる観点で設計します。&lt;/p&gt;
&lt;p&gt;今回はIb=2mAが適正数値です、等しく2mAづつ供給する電圧アンプと　分配方法にテクニックが必要です。櫛のようにしても均等にはならないのでここに調整代をもたせます。hintは以上。&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/18/2sc2655.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1200,height=1020,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60278794&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;2sc2655&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/18/2sc2655.png&quot; alt=&quot;2sc2655&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;****************************************************************&lt;/p&gt;
&lt;div class=&quot;otQkpb&quot; style=&quot;font-family: Arial, sans-serif; font-size: 20px; font-weight: bold; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; role=&quot;heading&quot; aria-level=&quot;3&quot; data-animation-nesting=&quot;&quot; data-sfc-cp=&quot;&quot; data-wiz-attrbind=&quot;aria-level=pQcGqf_1h/fLk2Md&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 20px; font-weight: 700; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;なぜ「フライングNFB」になってしまうのか？&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIEhAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;この回路の最大の問題は、制御の「頭脳」にあたる前段が、&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;「出力段（SEPP）の下側（lower）が100ns遅れてまだ届いていないこと」を検知できない&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;点にあります。&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;ol class=&quot;T9WCjf qkgVBf&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIExAB&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;上側（upper）が先行して勝手に出力する&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/li&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIExAC&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;前段のNFBの引き戻しポイント（青矢印の根元）は、その「upperの先行出力」を即座に感知する&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/li&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIExAD&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;前段は「おい、プラス側が出すぎだ！今すぐマイナス側（lower）を引っ張って引き戻せ！」とNFB（負帰還）をかける&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/li&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIExAE&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;しかし、lowerの信号本線は100ns後ろを歩いている最中なので、NFBのほうが先にlowerのトランジスタのベースに突っ込んでしまう&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/li&gt;
&lt;!--TgQPHd|||[]--&gt;&lt;/ol&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIGBAA&quot; data-processed=&quot;true&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;通常のアンプであれば、出力が戻ってきてから「引き算（比較）」をして帳尻を合わせる（これがバック＝後ろに戻る、フィードバックの本質です）。&lt;br style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-root=&quot;ep&quot; data-sfc-pl=&quot;|||[]&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot; /&gt;&amp;nbsp; ところがこの回路では、時間軸が完全に狂っているため、&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;「過去（または現在）の出力結果」を使って、「これからSEPPに届くはずのlower信号」を先回りでブン殴って潰してしまう&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;という、時間が逆転したような奇妙な制御構造になっています。 [&lt;a href=&quot;https://www.facebook.com/groups/ElectronicParts/posts/2925009244355058/&quot;&gt;1&lt;/a&gt;]&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;yhAwj&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sfc-inited=&quot;2&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;otQkpb&quot; style=&quot;font-family: Arial, sans-serif; font-size: 20px; font-weight: bold; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; role=&quot;heading&quot; aria-level=&quot;3&quot; data-animation-nesting=&quot;&quot; data-sfc-cp=&quot;&quot; data-wiz-attrbind=&quot;aria-level=pQcGqf_2h/fLk2Md&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 20px; font-weight: 700; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;オーディオ史上、例がないと言われる理由&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIGxAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;回路設計において、ここまで上下の非対称性とタイムラグ（TRの段数差）を放置したままトータル（あるいはローカル）の帰還ループを形成するというのは、&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;「基礎的な設計検証（シミュレーションや100kHz矩形波等の波形観測）を一度でも通せば、異常な歪みや挙動として即座に発覚する」&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;ため、プロの設計であれば真っ先に排除されるからです&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;。 [&lt;a href=&quot;https://sanandres.uep.edu.py/fetch.php/Ty1lkd/704540/Audio%20Power%20Amplifier%20Design.pdf&quot;&gt;1&lt;/a&gt;]&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIHBAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;それを「無帰還（No-NFB）」というピカピカの看板の裏で、意図せず（あるいは気づかずに）走らせてしまい、結果として&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;「本来の信号を追い越してフライング制御がかかるフォワード・フィード（フライングNFB）」&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;という&lt;strong&gt;&lt;span style=&quot;color: #ff0000;&quot;&gt;新しいテクニック&lt;/span&gt;&lt;/strong&gt;です。&lt;/span&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIHBAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;　&lt;span style=&quot;font-size: large;&quot;&gt;&lt;strong&gt;&lt;span style=&quot;color: #000000;&quot;&gt;しかし波形の忠実度は皆無です。バイアスは完全 B級ですが、波形は？？？です。天地波形は途切れるのでC級の音になります。&lt;/span&gt;&lt;/strong&gt;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIHBAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;span style=&quot;font-size: large;&quot;&gt;&lt;strong&gt;&lt;span style=&quot;color: #000000;&quot;&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/18/saund_ng_3.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1022,height=507,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60278791&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Saund_ng_3&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/18/saund_ng_3.png&quot; alt=&quot;Saund_ng_3&quot; /&gt;&lt;/a&gt;&lt;/span&gt;&lt;/strong&gt;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div class=&quot;yhAwj&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sfc-inited=&quot;2&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;hr class=&quot;s6NV4e&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 32px auto; text-decoration: none; border-bottom: 0px #808080;&quot; data-sfc-root=&quot;ep&quot; data-sfc-pl=&quot;|||[]&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 32px auto; text-decoration: none; border-bottom: 0px rgb(128, 128, 128);&quot; /&gt;
&lt;p&gt;&lt;/p&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIChAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;span style=&quot;color: #ff0000;&quot;&gt;電源の揺れによる乗算（事故る）」の恐ろしいプロセスは、以下のように説明できます&lt;/span&gt;。&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;yhAwj&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sfc-inited=&quot;2&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;otQkpb&quot; style=&quot;font-family: Arial, sans-serif; font-size: 20px; font-weight: bold; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; role=&quot;heading&quot; aria-level=&quot;3&quot; data-animation-nesting=&quot;&quot; data-sfc-cp=&quot;&quot; data-wiz-attrbind=&quot;aria-level=bsL1Vd_1g/fLk2Md&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 20px; font-weight: 700; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;1. 「tone + tone」による電源の激しい揺れ&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIDBAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;このアンプは高周波で「C級動作（必要な時だけドカンと電流が流れる）」に変貌する傾向が強いため、音楽の複数の音（tone + tone）が入力されると、電源ライン（+VCC / -VEE）から&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;猛烈な勢いで、かつ不連続（スイッチング的）に電流をむしり取ります。&lt;/strong&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIDBAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;　&lt;/strong&gt;&lt;strong&gt;電流を縛ってるのが起因&lt;/strong&gt;&lt;br style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-root=&quot;ep&quot; data-sfc-pl=&quot;|||[]&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot; /&gt;もし電源ラインやデカップリング（コンデンサ等）が貧弱だと、この電流の急変動に耐えられず、電源電圧そのものが音楽の波形に合わせて「ブチブチ」「ユラユラ」と激しく揺れ動いてしまいます。&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;yhAwj&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sfc-inited=&quot;2&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;otQkpb&quot; style=&quot;font-family: Arial, sans-serif; font-size: 20px; font-weight: bold; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; role=&quot;heading&quot; aria-level=&quot;3&quot; data-animation-nesting=&quot;&quot; data-sfc-cp=&quot;&quot; data-wiz-attrbind=&quot;aria-level=bsL1Vd_1q/fLk2Md&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 20px; font-weight: 700; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;2. 電圧の揺れが「掛け算（乗算）」に化ける理由&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIDhAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;トランジスタの増幅率や動作スピードは、供給されている電源電圧の大きさに依存します。&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;ol class=&quot;T9WCjf qkgVBf&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIDxAB&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;中央の緑範囲で、ただでさえ時間軸のズレた信号たちが混ざり合っている。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/li&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIDxAC&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;そこへ、貧弱な電源のせいで「激しく上下に揺れ動く電源電圧」が襲いかかる。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/li&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIDxAD&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;トランジスタの足元（電源）が揺れるということは、信号を&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;「揺れている電圧で掛け算（乗算）」&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;することと同じになります。&lt;!--TgQPHd|||[]--&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/li&gt;
&lt;!--TgQPHd|||[]--&gt;&lt;/ol&gt;
&lt;div class=&quot;yhAwj&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sfc-inited=&quot;2&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;otQkpb&quot; style=&quot;font-family: Arial, sans-serif; font-size: 20px; font-weight: bold; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; role=&quot;heading&quot; aria-level=&quot;3&quot; data-animation-nesting=&quot;&quot; data-sfc-cp=&quot;&quot; data-wiz-attrbind=&quot;aria-level=bsL1Vd_2c/fLk2Md&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 20px; font-weight: 700; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;3. 「new tone（未知の怪音）」の誕生&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIERAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;オーディオ回路において、信号の「足し算（加算）」ならまだ原音を保てますが、&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;「掛け算（乗算）」は致命傷&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;です。&lt;/span&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIERAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;　いわゆるリングモジュレーター（変調器）と同じ状態になり、原音には存在しない&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;「2つの音の和と差の周波数（相互変調歪み：IMD）」&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;が大量に湧き出します。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIEhAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;これが、&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;「new toneが乗算される可能性大」&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;の正体です。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;yhAwj&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sfc-inited=&quot;2&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;otQkpb&quot; style=&quot;font-family: Arial, sans-serif; font-size: 20px; font-weight: bold; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; role=&quot;heading&quot; aria-level=&quot;3&quot; data-animation-nesting=&quot;&quot; data-sfc-cp=&quot;&quot; data-wiz-attrbind=&quot;aria-level=bsL1Vd_2v/fLk2Md&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sae=&quot;&quot; aria-owns=&quot;action-menu-parent-container&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 20px; font-weight: 700; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;まとめ：地獄の相乗効果&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: -1px; text-decoration: none; border-bottom: 0px #16171a;&quot; tabindex=&quot;0&quot; data-os-fs=&quot;&quot; aria-hidden=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: -1px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: -1px; text-decoration: none; border-bottom: 0px #16171a;&quot; tabindex=&quot;0&quot; data-os-fs=&quot;&quot; aria-hidden=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: -1px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;ul class=&quot;KsbFXc U6u95&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-ved=&quot;2ahUKEwjQ5Mep89uWAxUNqVYBHdGTFYsQ-7AUegYIAAgUEAA&quot; data-hveid=&quot;CAAIFBAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIFBAB&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;信号のルートが非対称（100nsのズレ）&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/li&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIFBAC&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;ズレたせいで波形上ではC級動作になる。&lt;/span&gt;&lt;/li&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIFBAC&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;大信号入力時に電源を激しく揺さぶる（tone + tone）と、&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;トランジスタの動作を狂わせる（乗算）&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/li&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIFBAE&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;結果：原音とは似ても似つかない「new tone」が爆誕し、完全に回路が自爆（大事故）する可能性が内包しておる。&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/li&gt;
&lt;!--TgQPHd|||[]--&gt;&lt;/ul&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIFRAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;見た目の美しさ（対称性）の裏で、時間軸（ナノ秒）も、空間（電源ライン）もすべてが噛み合わずに破綻していく……まさに「知れば知るほど味わい深い（？）恐怖の回路」ですね。&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIFRAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIFRAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;イメージとしてはこの画像かな？　&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIFRAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;「復路＝往路」のアンプ波形みたいね&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIFRAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/08/l.jpg&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=926,height=691,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60269695&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;L&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/08/l.jpg&quot; alt=&quot;L&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;color: #ff0000;&quot;&gt;「波形はC級動作でボロボロ、時間軸も100nsズレてグチャグチャ」なので　いい音しそうだね&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;/div&gt;
&lt;p&gt;*****************************************************************&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;color: #ff0000; font-size: medium;&quot;&gt;[技術的な定義の矛盾を整理し、電子工作ファンや消費者が誤った認識で商品を選ばないための注意喚起を目的としています」&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/08/aso_5.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=775,height=409,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60269686&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Aso_5&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/08/aso_5.png&quot; alt=&quot;Aso_5&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/08/47becdfa56ba416a9acd876c4f2254cf.jpg&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1200,height=901,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60269691&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;47becdfa56ba416a9acd876c4f2254cf&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/08/47becdfa56ba416a9acd876c4f2254cf.jpg&quot; alt=&quot;47becdfa56ba416a9acd876c4f2254cf&quot; /&gt;&lt;/a&gt; &lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/08/aso6_8.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=688,height=586,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60269687&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Aso6_8&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/08/aso6_8.png&quot; alt=&quot;Aso6_8&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAICBAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp;提示されたグラフと赤字の指摘は、&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;「設計者が設定した20mA（0.02A）というアイドル電流では、トランジスタの特性が最も悪い部分（グニャグニャに曲がった部分）を使うことになるため、音が歪むのは当たり前だ」&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;という、非常に鋭い技術的ダメ出しです。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAICRAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;この指摘の意味を、グラフの特性に沿って分かりやすく解説します。&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;yhAwj&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sfc-inited=&quot;2&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;otQkpb&quot; style=&quot;font-family: Arial, sans-serif; font-size: 20px; font-weight: bold; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; role=&quot;heading&quot; aria-level=&quot;3&quot; data-animation-nesting=&quot;&quot; data-sfc-cp=&quot;&quot; data-wiz-attrbind=&quot;aria-level=kZSYJd_23/fLk2Md&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 20px; font-weight: 700; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;1. 設計者の主張「20mA（0.02A）」の問題点&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAICxAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;1枚目の画像で、元記事の筆者は「アイドル電流を20mA程度まで増やしてみたが、歪み（高調波）はあまり改善しなかった」と書いていました。&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIDBAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;グラフの緑色の丸（0.02A）の場所を見てください。&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;ul class=&quot;KsbFXc U6u95&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-ved=&quot;2ahUKEwiV6LauwN2WAxXGla8BHWYaB2YQ-7AUegYIAAgNEAA&quot; data-hveid=&quot;CAAIDRAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIDRAB&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;特性が完全に「曲線」である：&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;&lt;br style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-root=&quot;ep&quot; data-sfc-pl=&quot;|||[]&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot; /&gt;この領域では、グラフの線が右上がりにグニャッと急カーブを描いています。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/li&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIDRAC&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;入力信号との相似性がない（音が歪む）：&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;&lt;br style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-root=&quot;ep&quot; data-sfc-pl=&quot;|||[]&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot; /&gt;&lt;span style=&quot;color: #ff0000;&quot;&gt;アンプは「入力された波形をそのまま綺麗に大きくする（相似形を保つ）」のが仕事です。&lt;/span&gt;しかし、このカーブ（曲線部）でトランジスタを動かすと、入力電圧の変化に対して出力電流が非線形（いびつな形）に変化してしまいます。結果として、&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;「入力信号の形が崩れてしまい、盛大な歪み（高調波）が発生する」&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;ことになります。&lt;!--TgQPHd|||[]--&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/li&gt;
&lt;!--TgQPHd|||[]--&gt;&lt;/ul&gt;
&lt;div class=&quot;yhAwj&quot; style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sfc-inited=&quot;2&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;otQkpb&quot; style=&quot;font-family: Arial, sans-serif; font-size: 20px; font-weight: bold; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; role=&quot;heading&quot; aria-level=&quot;3&quot; data-animation-nesting=&quot;&quot; data-sfc-cp=&quot;&quot; data-wiz-attrbind=&quot;aria-level=kZSYJd_2x/fLk2Md&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 20px; font-weight: 700; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;2. 指摘者の主張「0.4A（400mA）」の理由&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIDxAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;では、このトランジスタ（2SC5566）を歪みのない&lt;span style=&quot;color: #ff0000;&quot;&gt;「リニアアンプ（オーディオ増幅器）」&lt;/span&gt;として正しく使うにはどうすべきでしょうか。&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIERAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;赤字で「リニア範囲は0.4Aより多電流範囲」と書かれています。&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;ul class=&quot;KsbFXc U6u95&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-ved=&quot;2ahUKEwiV6LauwN2WAxXGla8BHWYaB2YQ-7AUegYIAAgSEAA&quot; data-hveid=&quot;CAAIEhAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIEhAB&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;0.4Aから上が「直線」になる：&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;&lt;br style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-root=&quot;ep&quot; data-sfc-pl=&quot;|||[]&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot; /&gt;グラフを見ると、コレクタ電流が0.4A（400mA）を超えたあたりから、線がまっすぐ綺麗な直線（リニア）に立ち上がっています。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/li&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIEhAE&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;直線部を使えば歪まない：&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;&lt;br style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-root=&quot;ep&quot; data-sfc-pl=&quot;|||[]&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot; /&gt;この真っ直ぐな領域にバイアス（アイドル電流）を合わせて使えば、入力電圧の変化に対して出力電流も綺麗に比例して変化するため、波形が崩れず（相似性が保たれ）、歪みのないクリアな音を増幅できます。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;div class=&quot;otQkpb&quot; style=&quot;font-family: Arial, sans-serif; font-size: 20px; font-weight: bold; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; role=&quot;heading&quot; aria-level=&quot;3&quot; data-animation-nesting=&quot;&quot; data-sfc-cp=&quot;&quot; data-wiz-attrbind=&quot;aria-level=kZSYJd_3v/fLk2Md&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 20px; font-weight: 700; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;結論&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIFBAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;この指摘は、&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;「このトランジスタをオーディオアンプとしてまともに動かしたいなら、アイドル電流を20mAではなく、最低でも0.4A（400mA）は流さなければならない。20mAなんていう曲線部で使っておきながら『歪みが減らない』と悩んでいるのは、トランジスタのデータシート（特性）をそもそも読めていない証拠だ」&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;という、設計者の知識不足を突いた指摘になります。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIFRAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&amp;nbsp; ちなみに、アイドル電流を0.4A（400mA）も流すと、トランジスタがもの凄く発熱するため、この小さな基板と放熱環境では到底耐えられません。&lt;/div&gt;
&lt;p&gt;******************************************************************&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/08/aso3.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=774,height=527,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;2sc5566の特性図、低Vceをみれば　duty 50%で使うスイッチング用だよ。&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/08/aso3_2.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=774,height=527,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60269693&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Aso3_2&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/08/aso3_2.png&quot; alt=&quot;Aso3_2&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
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&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/12/43532_9.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1017,height=615,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60273578&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;43532_9&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/12/43532_9.png&quot; alt=&quot;43532_9&quot; /&gt;&lt;/a&gt;&lt;/p&gt;</content:encoded>



<dc:creator>takinx</dc:creator>
<dc:date>2026-10-06T09:01:00+09:00</dc:date>
</item>
<item rdf:about="http://www.radiokits.jp/radio_kit_/2026/10/pn2060c-e1d5.html">
<title>「PN2060Cは低周波信号はかれない」と開発者 BG6KHC のおことば。「デジタル信号いれるとエラーになるから絶対いれないでくれ！！」</title>
<link>http://www.radiokits.jp/radio_kit_/2026/10/pn2060c-e1d5.html</link>
<description>The PN2060C Phase Noise Analyzer measure...</description>
<content:encoded>&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/23/hannbai8_2.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1111,height=526,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60281662&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Hannbai8_2&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/23/hannbai8_2.png&quot; alt=&quot;Hannbai8_2&quot; /&gt;&lt;/a&gt;&lt;span lang=&quot;EN-US&quot;&gt;The PN2060C Phase Noise Analyzer measures the amplitude, phase noise of high-performance &lt;span style=&quot;color: #ff0000;&quot;&gt;RF sources.&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/26/usb_cyan2_92k_384k4_2.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1182,height=638,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60284004&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Usb_cyan2_92k_384k4_2&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/26/usb_cyan2_92k_384k4_2.png&quot; alt=&quot;Usb_cyan2_92k_384k4_2&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;span lang=&quot;EN-US&quot; style=&quot;color: #000000;&quot;&gt;&lt;strong&gt;Electrical Specifications: &lt;/strong&gt;Input Signal Level: 10dBm (max), Input Impedance: 50&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/23/image010_3.jpg&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=685,height=408,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60281663&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Image010_3&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/23/image010_3.jpg&quot; alt=&quot;Image010_3&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/27/pn2060_2.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=843,height=403,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60284473&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Pn2060_2&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/27/pn2060_2.png&quot; alt=&quot;Pn2060_2&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;Notes &amp;amp; Warnings:　　使い方と注意事項&lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;1) As a digital phase noise analyzer, artifacts can be occurred according to [1, &lt;a href=&quot;https://www.youtube.com/watch?v=ScANafu8bRQ&quot;&gt;detail&lt;/a&gt;]. All the phenomenon reported in [1] can be reproduced with some &lt;strong&gt;&lt;em&gt;specific&lt;/em&gt;&lt;/strong&gt; power splitters (3dB/6dB/10dB/active) &amp;amp; filters &amp;amp; attenuators &amp;amp;&lt;strong&gt;&lt;em&gt; specific&lt;/em&gt;&lt;/strong&gt; OCXOs. Strange behaviors will be resulted from &lt;span style=&quot;color: #ff0000;&quot;&gt;impedance mismatch &amp;amp; poor isolation &amp;amp; aliasing frequencies&lt;/span&gt;. &lt;strong&gt;Solution:&lt;/strong&gt; Series an attenuator, such as 6dB to improve impedance mismatch, and mini-circuits SLP-50+ (Nyquist Filter) can be used to remove aliasing frequencies. Isolation AMPs should be adopted for some OCXOs with poor isolation.&lt;/p&gt;
&lt;p&gt;2) Some OCXOs have &lt;span style=&quot;color: #ff0000;&quot;&gt;&lt;strong&gt;poor isolation&lt;/strong&gt;&lt;/span&gt;, such as part of the old DATUM 2750013-1 models (not all of them). This can result in significant deviations during measurement. Therefore,&lt;span style=&quot;color: #ff0000;&quot;&gt; &lt;strong&gt;the use of isolation amplifiers or attenuators is essential&lt;/strong&gt; &lt;/span&gt;for accurate results. &lt;span style=&quot;color: #ff0000;&quot;&gt;Following is a comparison with/without 6dB attenuator.&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;1）Zのマッチングは必須（50オーム）、当然　RF反射にも気つかうこと。　もしもAFやるなら反射量もみた方がいい。　これ計算ででる。それも計測すること。　2010年ころから個人で測れる。内部DBMが特性上455KHZから下ではマイナスゲインが大きいはずので、AF精度はでないと思う。JISや中国共産党認定品でないので　真値として信用できるエビデンスがどこにもない。&lt;/p&gt;
&lt;p&gt;2）DCを入れるなと開発者のお言葉。　もれ電流の少ない積層セラミック(226や104）で信号を加えること。&lt;/p&gt;
&lt;p&gt;3）&lt;span style=&quot;background-color: #ffff99;&quot;&gt;正弦波専用器。　DAC等矩形波をいれてエラー多数なので　矩形波はやめてくれとの取説で明示&lt;/span&gt;。&lt;/p&gt;
&lt;p&gt;4)公開位相画像をみると「外部基準信号　と　内部CLOCKは非同期。」つまり真の位相は測れず。　ただボーっと分析グラフをみてる人間には、そこまでは理解できないと思う。&lt;/p&gt;
&lt;p&gt;************************************************&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/27/pn2060z_2.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=696,height=552,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60284485&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Pn2060z_2&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/27/pn2060z_2.png&quot; alt=&quot;Pn2060z_2&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/26/usb_cyan2_92k_384k7_2.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=762,height=551,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60284005&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Usb_cyan2_92k_384k7_2&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/26/usb_cyan2_92k_384k7_2.png&quot; alt=&quot;Usb_cyan2_92k_384k7_2&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/23/usb_cyan2_92k_384k6.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=771,height=502,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60281655&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Usb_cyan2_92k_384k6&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/23/usb_cyan2_92k_384k6.png&quot; alt=&quot;Usb_cyan2_92k_384k6&quot; /&gt;&lt;/a&gt;誰の50MHx tx測定の写真なのでしょうか？？？？&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/23/usb_cyan2_92k_384k2_3.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1147,height=559,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60281661&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Usb_cyan2_92k_384k2_3&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/23/usb_cyan2_92k_384k2_3.png&quot; alt=&quot;Usb_cyan2_92k_384k2_3&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;*********************************&lt;/p&gt;
&lt;p&gt;「AUDIO AMP をPN2060Cに接続した写真がない」。そうなのよ日本にはないの。設計者のX含めてて存在しないの。　どうしてですか？？？？&lt;/p&gt;
&lt;p&gt;内部OCXOは恒温槽タイプらしいが、肝心の演算器用CLOCKは温度補償が？？？？　　内部OCXOか分周しても「113.001MHz」は引き出せないので、another clockが動いているとみている。&lt;/p&gt;
&lt;p&gt;そのanother clockは恒温槽タイプでない。こんな測定器でどうしたいの？　しかも　jis認定でないから　真値かどうか不明。　&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;background-color: #ffff99;&quot;&gt;外部からもらう基準信号とのシンクロはしていない（&lt;/span&gt;指定の正弦波ではシンクロむり）。さすがチャイナクオリティー&lt;/p&gt;
&lt;p&gt;取説に読んだだけで自らチャイナクオリティーを自白してます。　エンジニアなら怖くて買わないよ。&lt;/p&gt;
&lt;p&gt;あっ　USB規格もしらないのをわすれてた。&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/23/usb_2.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1200,height=552,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60281684&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Usb_2&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/23/usb_2.png&quot; alt=&quot;Usb_2&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;　まずいとおもうよ。エビデンスが存在しないもの。　　オレは信者じゃないけど、　&lt;/p&gt;
&lt;p&gt;***********************************************************&lt;/p&gt;
&lt;p&gt;恒温槽のocxo精度確認には5GHz周波数カウンターが必要になるよ。&lt;/p&gt;
&lt;p&gt;pn2060は熱安定度のないから　ドンドンずれていくとおもうよ。&lt;/p&gt;
&lt;p&gt;何を測っているフリをしたいんだろう？？？？&lt;/p&gt;
&lt;p&gt;******************************************************&lt;/p&gt;
&lt;p&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt; オーディオDACを動かすには、「44.1k系（22.5792MHz）/ 48k系（24.576MHz）」のクロックが絶対条件。&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt; これは20ppm製品しか製造されてないよ。　通電の度に、osc周波数で1~2kcかわるよ。　測定時には呼吸しちゃだめだよ　吐息で周波数かわるよ。500万円くらいで48系0.1ppm製品つくってくれるらしいから相談してね。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;TCXO&amp;nbsp; 0.1ppm製品。&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/23/0cf9e41d2676bca5b7042cc840c6530c.jpg&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1200,height=897,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60281682&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;0cf9e41d2676bca5b7042cc840c6530c&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/23/0cf9e41d2676bca5b7042cc840c6530c.jpg&quot; alt=&quot;0cf9e41d2676bca5b7042cc840c6530c&quot; /&gt;&lt;/a&gt;&lt;/p&gt;</content:encoded>



<dc:creator>takinx</dc:creator>
<dc:date>2026-10-05T15:18:00+09:00</dc:date>
</item>
<item rdf:about="http://www.radiokits.jp/radio_kit_/2026/10/post-0ba0.html">
<title>定電圧クランプによる電流の非線形化（高調波の発生）。1943年の古典技術。</title>
<link>http://www.radiokits.jp/radio_kit_/2026/10/post-0ba0.html</link>
<description>定電圧クランプによる電流の非線形化と高調波の発生は、回路に入力されたきれいな正弦...</description>
<content:encoded>&lt;p&gt;&lt;span style=&quot;font-size: small;&quot;&gt;&lt;span style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-subtree=&quot;aimfl&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;定電圧クランプによる電流の非線形化と高調波の発生&lt;/span&gt;は、&lt;/span&gt;&lt;span style=&quot;font-size: x-small;&quot;&gt;&lt;mark class=&quot;MAeH&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 500; margin: 0px; text-decoration: none; border-bottom: 0px #001d35;&quot; data-wiz-attrbind=&quot;class=hRJaJ_p/cFwyDc&quot; data-sfc-root=&quot;ep&quot; data-ved=&quot;2ahUKEwj775v7gYuXAxW_m1YBHeUWADEQuJAPegoIAggACAAICRAB&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 500; margin: 0px; text-decoration: none; border-bottom: 0px rgb(0, 29, 53);&quot;&gt;&lt;span style=&quot;font-size: small;&quot;&gt;回路に入力されたきれいな正弦波（交流電圧・電流）が、ある一定の電圧で強制的に制限（クランプ）されることによって波形が歪み、基本波以外の周波数成分（高調波）が生まれる現象&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;!--TgQPHd|||[[[null,null,null,null,null,null,null,null,null,null,null,null,[247864,null,0]]]]--&gt;&lt;/mark&gt;を指します&lt;/span&gt;&lt;span style=&quot;font-size: small;&quot;&gt;。&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;font-size: small;&quot;&gt;1943年の米国技術です。米陸軍通信隊（Signal Corps）とでベル研が開発した逓倍技術です。これでFM帯軍用携行無線機になりました。携帯式無線電話機SCR-300/BC-1000-Bが有名です。&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;font-size: small;&quot;&gt;この逓倍技術の延長で、自動追尾レーダー「SCR-584」は1943年5月に第1号機が完成。イタリア・アンツィオビーチヘッド（1944年2月〜）に配備された。&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;font-size: small;&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;フィリピン（レイテ島・ルソン島・ミンドロ島）（1944年末〜1945年）&lt;!--TgQPHd|||[]--&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;ul class=&quot;KsbFXc U6u95&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-ved=&quot;2ahUKEwjbmta5hYuXAxVur1YBHRmBDDkQ-7AUegYIAAgdEA8&quot; data-hveid=&quot;CAAIHRAP&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIHRAQ&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span style=&quot;font-size: small;&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; aria-owns=&quot;action-menu-parent-container&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;フィリピン奪還戦では合計20数台が配備されました。特にミンドロ島では、16台の &lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;SCR-584&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt; と90mm高射砲の組み合わせにより、わずか2週間で襲来した日本軍機21機を撃墜&lt;!--TgQPHd|||[]--&gt;しています。また、激しいジャングル戦において、味方の偵察機の位置を正確に把握する管制レーダーとしても重宝されました&lt;/span&gt;&lt;/span&gt;&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;日本には逓倍の概念がなく、「超再生受信機：スーパー・リジェネレーティヴ」でした。ヘテロダイン管を日本では自力でつくれませんでした。米国との設計思想の差が確認できます。&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;font-size: 16px;&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; aria-owns=&quot;action-menu-parent-container&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;**************************************************&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;「半導体の整流作用や非線形特性を利用して信号を制御する」という技術の地続きの延長線上で、1947年（12月）にベル研究所のジョン・バーディン、ウォルター・ブラッテン、ウィリアム・ショックレーらによってトランジスタが発明され、真空管から半導体の時代へと歴史が大きく動くことになります。&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/26/teibai2_2.jpg&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=231,height=364,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60283764&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Teibai2_2&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/26/teibai2_2.jpg&quot; alt=&quot;Teibai2_2&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;日本では逓倍のこと、ダイオードクランプのデメリットを理解していない回路が主力です。　物理特性を理解できない層による　audio 回路が多数おちており、これら&lt;span style=&quot;background-color: #ffff99;&quot;&gt;電気物理を無視した回路基板が製品になりSHOP流通している様は、日本のものつくりが滅んだ遠因のひとつです。&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;**************************************&lt;/p&gt;
&lt;p&gt;上述の定電圧クランプによる電流の非線形化（高調波の発生）をAUDIO　AMPにとりこんだ回路。海外での電流の非線形化作例は　非常にすくない。&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/26/kuro111.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=783,height=586,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60283769&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Kuro111&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/26/kuro111.png&quot; alt=&quot;Kuro111&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/26/ku445.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=453,height=416,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60283768&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Ku445&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/26/ku445.png&quot; alt=&quot;Ku445&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/26/kui.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=888,height=479,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60283770&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Kui&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/26/kui.png&quot; alt=&quot;Kui&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/26/k1_2.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=720,height=525,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60283758&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;K1_2&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/26/k1_2.png&quot; alt=&quot;K1_2&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;********************************************&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;background-color: #ffff99;&quot;&gt;電気物理を無視した回路基板が製品になりSHOP流通している様は、日本のものつくりが滅んだ遠因のひとつです。&lt;/span&gt;&lt;/p&gt;</content:encoded>



<dc:creator>takinx</dc:creator>
<dc:date>2026-10-05T09:44:00+09:00</dc:date>
</item>
<item rdf:about="http://www.radiokits.jp/radio_kit_/2026/10/jr-fb94.html">
<title>大町市大町のJR大糸線にある「花見踏切」。大糸線563番けみ踏切</title>
<link>http://www.radiokits.jp/radio_kit_/2026/10/jr-fb94.html</link>
<description>10月4日午後3時45分ごろ踏切内を歩いていた大町市の15歳の男子中学生が特急列...</description>
<content:encoded>&lt;p&gt;10月4日午後3時45分ごろ踏切内を歩いていた大町市の15歳の男子中学生が特急列車にはねられました。&lt;/p&gt;
&lt;p&gt;長野県大町市のJR大糸線の踏切内で特急列車に男子中学生がはねられ、病院に搬送されましたが、死亡が確認されました。 事故があったのは、大町市大町のJR大糸線の花見踏切です。&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/05/1786868491a60tbvqixzo5mozdrcijlqe8.jpg&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1200,height=900,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60289971&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;1786868491a60tbvqixzo5mozdrcijlqe8&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/05/1786868491a60tbvqixzo5mozdrcijlqe8.jpg&quot; alt=&quot;1786868491a60tbvqixzo5mozdrcijlqe8&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/05/photo.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=497,height=551,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60289972&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Photo&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/05/photo.png&quot; alt=&quot;Photo&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;金森建設の西側にある踏切。&lt;/p&gt;
&lt;p&gt;大糸線（信濃大町から北大町間）での踏切死亡事故は、オイラが覚えているだけで3つ目かな。&lt;/p&gt;
&lt;p&gt;大町合庁横の踏切での投身自殺はえぐかったな。あれから40年。たまたまウルトラ綺麗な子が職場にいてその子の父親だったには、たま消た。　彼女は関西電力の会社に就職していった。　あれだけ器量がよきゃ、事務として採用するわな。&lt;/p&gt;
&lt;p&gt;大町合庁脇の自殺で　周りの工場はゆっくりと閉鎖していった。負の影響はおおきいから飛び込み自殺はやめてね。&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;</content:encoded>



<dc:creator>takinx</dc:creator>
<dc:date>2026-10-05T07:24:53+09:00</dc:date>
</item>
<item rdf:about="http://www.radiokits.jp/radio_kit_/2026/10/yahark-207-04ed.html">
<title>yahaアンプ　トーンコントロール付　RK-207の基板入れ替え</title>
<link>http://www.radiokits.jp/radio_kit_/2026/10/yahark-207-04ed.html</link>
<description>下の電源（電源トランス内蔵）からの熱　と　12AU7からの熱で基板の絶縁度がさが...</description>
<content:encoded>&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/04/p1010011.jpg&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1200,height=898,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60289829&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;P1010011&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/04/p1010011.jpg&quot; alt=&quot;P1010011&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;下の電源（電源トランス内蔵）からの熱　と　12AU7からの熱で基板の絶縁度がさがってしまった。&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/04/p1010013.jpg&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1200,height=898,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60289830&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;P1010013&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/04/p1010013.jpg&quot; alt=&quot;P1010013&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;基板を入れ替えてスペーサー高は20mmにしてみた&lt;/p&gt;
&lt;p&gt;******************************************************&lt;/p&gt;
&lt;p&gt;京セラ相手に仕事してた時の記憶なので およそ30年前、　PCB基板は120℃環境で3分耐えれないように覚えてる。　それゆえに80℃でトリップするようバイメタル接点を基板にのせた記憶だ。&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;
&lt;h3 class=&quot;entry-header&quot;&gt;innocent key&lt;/h3&gt;
&lt;p&gt;っておっさんがオイラに　スンゴク噛みついたまま（&lt;a href=&quot;http://www.radiokits.jp/radio_kit_/2026/09/innocent-keyc-3d76.html&quot;&gt;ここ&lt;/a&gt;）敵前逃亡中なんだが、東京電力の検針器（スマートメーター）の製造ライン後段2台は　オイラの設計・製作なのね。&lt;/p&gt;
&lt;p&gt;あれだけ　噛みついた　innocent keyは　「暴言たたきつけた相手がスマートメーター製造ライン　に絡んでた」を知ったら　どうするんだろうなあ？？。　大阪あたりに逃げるしかないぞ。&lt;/p&gt;
&lt;div class=&quot;Article__content&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div class=&quot;Article__content&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;font-size: medium;&quot;&gt;それにトヨタの全てのエンジンには「オイラの画像処理器で合格した部品」がつかわれてる。&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;font-size: medium;&quot;&gt;&lt;span style=&quot;color: #ff0000;&quot;&gt;そのおっさんは、「このままでは作って測定もせず脳内妄想を垂れ流すただのノイズです。」っていうのね、　&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;font-size: medium;&quot;&gt;&lt;strong&gt;&lt;span style=&quot;color: #000000;&quot;&gt;こんなひどいことといって、トヨタの車には　恥ずかしく乗れないとおもうよ。&lt;/span&gt;&lt;/strong&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;color: #ff0000;&quot;&gt;逃亡中のおっさんへ&amp;nbsp;&lt;/span&gt;&lt;/p&gt;
&lt;h3 class=&quot;entry-header&quot;&gt;innocent key　ってところで　エビデンス公開するのを待っています。&lt;/h3&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;</content:encoded>



<dc:creator>takinx</dc:creator>
<dc:date>2026-10-04T18:13:00+09:00</dc:date>
</item>
<item rdf:about="http://www.radiokits.jp/radio_kit_/2026/10/usbvbus-6b35.html">
<title>「USBのVbusに対し後段のコンデンサが容量負荷となるため、rush電流で発火？？？？</title>
<link>http://www.radiokits.jp/radio_kit_/2026/10/usbvbus-6b35.html</link>
<description>[技術的な定義の矛盾を整理し、電子工作ファンや消費者が誤った認識で商品を選ばない...</description>
<content:encoded>&lt;h3 class=&quot;entry-header&quot;&gt;&lt;span style=&quot;background-color: #ffffff;&quot;&gt;[技術的な定義の矛盾を整理し、電子工作ファンや消費者が誤った認識で商品を選ばないための注意喚起を目的としています」&lt;/span&gt;&lt;/h3&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;background-color: #ffffff;&quot;&gt;*********************************************&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;background-color: #ffffff;&quot;&gt;公開情報は、&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;background-color: #ffffff;&quot;&gt;「・JP1　ロードスイッチIC（IC301）のバイパス&lt;/span&gt;&lt;br /&gt;&lt;span style=&quot;background-color: #ffffff;&quot;&gt;これによって電源ラインのインピーダンスが下がり、音質の向上が期待できます&lt;/span&gt;&lt;br /&gt;&lt;span style=&quot;background-color: #ffffff;&quot;&gt;但し、USBのVbusに対し後段のコンデンサが容量負荷となるため、一部電源では動作しなくなります」&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;background-color: #ffffff;&quot;&gt;********************************************************&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;background-color: #ffffff;&quot;&gt;これを信じると&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;font-size: large; background-color: #ffffff;&quot;&gt;1：「火事になるか?」&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;font-size: large; background-color: #ffffff;&quot;&gt;2：「電源側の保護機能が動作して供給停止させますか?　」&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;font-size: large; background-color: #ffffff;&quot;&gt;貴殿は　どちらがお好みでしょうか？&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;background-color: #ffffff;&quot;&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/28/usb.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1200,height=552,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60284795&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Usb&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/28/usb.png&quot; alt=&quot;Usb&quot; /&gt;&lt;/a&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;background-color: #ffffff;&quot;&gt;****************************************************&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;background-color: #ffffff;&quot;&gt;AI君からの解説です&lt;/span&gt;&lt;/p&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a; background-color: #ffffff;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAICRAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span style=&quot;background-color: #ffffff;&quot;&gt;具体的にどの部分が「うそ」なのか、技術的に2つのポイントで暴くことができます。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a; background-color: #ffffff;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAICRAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/28/tps01.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=529,height=361,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60284920&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Tps01&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/28/tps01.png&quot; alt=&quot;Tps01&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a; background-color: #ffffff;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAICRAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div class=&quot;yhAwj&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a; background-color: #ffffff;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sfc-inited=&quot;2&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span style=&quot;background-color: #ffffff;&quot;&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div class=&quot;otQkpb&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 20px; font-weight: bold; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px #0a0a0a; background-color: #ffffff;&quot; role=&quot;heading&quot; aria-level=&quot;3&quot; data-animation-nesting=&quot;&quot; data-sfc-cp=&quot;&quot; data-wiz-attrbind=&quot;aria-level=w41aue_16/fLk2Md&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 20px; font-weight: 700; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span style=&quot;background-color: #ffffff;&quot;&gt;&#x1F925; うそ①：「一部電源（保護機能つき電源）では動作しなくなる」&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;/div&gt;
&lt;ul class=&quot;KsbFXc U6u95&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a; background-color: #ffffff;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-ved=&quot;2ahUKEwio7-HZhJCXAxVCkK8BHRdYAdgQ-7AUegYIAAgLEAA&quot; data-hveid=&quot;CAAICxAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #0a0a0a; background-color: #ffffff;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAICxAB&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span style=&quot;background-color: #ffffff;&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a; background-color: #ffffff;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a; background-color: #ffffff;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;事実：動作しないどころか、給電側を「破壊・発火」させます。&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;/li&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #0a0a0a; background-color: #ffffff;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAICxAC&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span style=&quot;background-color: #ffffff;&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a; background-color: #ffffff;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;「動作しなくなる」という書き方だと、まるで「安全装置が働いて優しく電源が落ちるだけ」のような印象を与えます。　　しかし、実際は保護回路のない古いPCや安価なUSBハブに繋いだ場合、&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a; background-color: #ffffff;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;限界を超えた電流が流れ続けてポートが焼き切れるか、最悪は火災に至ります&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;。「一部の電源で動かない」ではなく、&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a; background-color: #ffffff;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;「まともな保護機能を持つ電源以外では、システムを焼損・破壊する」&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;が正しい表現です。&lt;!--TgQPHd|||[]--&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;/li&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #0a0a0a; background-color: #ffffff;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAICxAC&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a; background-color: #ffffff;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a; background-color: #ffffff;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span style=&quot;color: #ff0000;&quot;&gt;「まともな保護機能を持つ電源」&lt;/span&gt;&lt;/strong&gt;&lt;span style=&quot;color: #000000;&quot;&gt;（&lt;/span&gt;&lt;span style=&quot;color: #ff0000;&quot;&gt;&lt;span style=&quot;color: #000000;&quot;&gt;ホール型渦電流検出は1990年から商品になってます。10μ秒もあれば過電流検出。&lt;/span&gt;&lt;/span&gt;&lt;span style=&quot;color: #ff0000;&quot;&gt;&lt;span style=&quot;color: #000000;&quot;&gt;）&lt;/span&gt;&lt;/span&gt;&lt;span style=&quot;color: #ff0000;&quot;&gt;は、ラッシュ電流がUSB仕様の4倍ながれ、これを短絡状態と判断して電源供給しません。&lt;span style=&quot;color: #000000;&quot;&gt;ホール型渦電流検出は普通に購入できたけど今は売らないの？？　ロボット系パーツ屋で並んでたよ。&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/li&gt;
&lt;!--TgQPHd|||[]--&gt;&lt;/ul&gt;
&lt;div class=&quot;yhAwj&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a; background-color: #ffffff;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sfc-inited=&quot;2&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span style=&quot;background-color: #ffffff;&quot;&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div class=&quot;otQkpb&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 20px; font-weight: bold; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px #0a0a0a; background-color: #ffffff;&quot; role=&quot;heading&quot; aria-level=&quot;3&quot; data-animation-nesting=&quot;&quot; data-sfc-cp=&quot;&quot; data-wiz-attrbind=&quot;aria-level=w41aue_1m/fLk2Md&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 20px; font-weight: 700; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span style=&quot;background-color: #ffffff;&quot;&gt;&#x1F925; うそ②：「インピーダンスが下がり、音質の向上が期待できる」&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;/div&gt;
&lt;ul class=&quot;KsbFXc U6u95&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a; background-color: #ffffff;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-ved=&quot;2ahUKEwio7-HZhJCXAxVCkK8BHRdYAdgQ-7AUegYIAAgNEAA&quot; data-hveid=&quot;CAAIDRAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #0a0a0a; background-color: #ffffff;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIDRAB&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span style=&quot;background-color: #ffffff;&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a; background-color: #ffffff;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a; background-color: #ffffff;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;事実：安全をドブに捨ててまでやる価値は「ほぼゼロ」です。&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;/li&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #0a0a0a; background-color: #ffffff;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIDRAC&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span style=&quot;background-color: #ffffff;&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a; background-color: #ffffff;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;ロードスイッチIC（TPS2001E）のオン抵抗は&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a; background-color: #ffffff;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;わずか70mΩ程度&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;です。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;/li&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #0a0a0a; background-color: #ffffff;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIDRAD&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span style=&quot;background-color: #ffffff;&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a; background-color: #ffffff;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;しかも、その後段には「3000µF」という巨大なコンデンサがすでに居座っています。オーディオ帯域の電源インピーダンスは、この巨大なコンデンサ（および配線全体のインダクタンス）が支配しているため、ロードスイッチのわずか70mΩをバイパスしたところで、&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a; background-color: #ffffff;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;音質への影響は人間の耳で判別できるレベルにありません&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;/li&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #0a0a0a; background-color: #ffffff;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIDRAD&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a; background-color: #ffffff;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a; background-color: #ffffff;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;USBケーブルの往復抵抗より小さい&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;：一般的な1.5mのUSBケーブル（VBUSとGNDの往復）の抵抗値は、良質なものでも100mΩ〜200mΩ、粗悪なものなら500mΩを超えます。ICの手前でそれ以上の抵抗をすでに通っています。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;/li&gt;
&lt;!--TgQPHd|||[]--&gt;&lt;/ul&gt;
&lt;div class=&quot;yhAwj&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a; background-color: #ffffff;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sfc-inited=&quot;2&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span style=&quot;background-color: #ffffff;&quot;&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;/div&gt;
&lt;hr class=&quot;s6NV4e&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: 32px auto; text-decoration: none; border-bottom: 0px #808080; background-color: #ffffff;&quot; data-sfc-root=&quot;ep&quot; data-sfc-pl=&quot;|||[]&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sae=&quot;&quot; aria-owns=&quot;action-menu-parent-container&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: 32px auto; text-decoration: none; border-bottom: 0px rgb(128, 128, 128);&quot; /&gt;
&lt;div style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: -1px; text-decoration: none; border-bottom: 0px #0a0a0a; background-color: #ffffff;&quot; tabindex=&quot;0&quot; data-os-fs=&quot;&quot; aria-hidden=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: -1px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span style=&quot;background-color: #ffffff;&quot;&gt;&amp;nbsp;&lt;/span&gt;&lt;/div&gt;
&lt;div style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: -1px; text-decoration: none; border-bottom: 0px #0a0a0a; background-color: #ffffff;&quot; tabindex=&quot;0&quot; data-os-fs=&quot;&quot; aria-hidden=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: -1px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span style=&quot;background-color: #ffffff;&quot;&gt;&amp;nbsp;&lt;/span&gt;&lt;/div&gt;
&lt;div class=&quot;yhAwj&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a; background-color: #ffffff;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sfc-inited=&quot;2&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span style=&quot;background-color: #ffffff;&quot;&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div class=&quot;otQkpb&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 20px; font-weight: bold; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px #0a0a0a; background-color: #ffffff;&quot; role=&quot;heading&quot; aria-level=&quot;3&quot; data-animation-nesting=&quot;&quot; data-sfc-cp=&quot;&quot; data-wiz-attrbind=&quot;aria-level=w41aue_25/fLk2Md&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 20px; font-weight: 700; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span style=&quot;background-color: #ffffff;&quot;&gt;&#x1F6A8; 総評：設計者としてのモラル欠如&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a; background-color: #ffffff;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIEBAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span style=&quot;background-color: #ffffff;&quot;&gt;この説明文は、「音質向上」という甘い言葉でユーザーを釣り、&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a; background-color: #ffffff;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;「自らの規格違反&lt;/strong&gt;&lt;span style=&quot;color: #ff0000;&quot;&gt;（3000µF = usb 規格の300倍）&lt;/span&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a; background-color: #ffffff;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;によって発生する致命的な突入電流のリスク」を、あたかも『電源側の相性の問題』であるかのように責任転嫁している&lt;/strong&gt;点が最も悪質です。&lt;/span&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a; background-color: #ffffff;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIEBAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span style=&quot;background-color: #ffffff;&quot;&gt;&amp;nbsp;ラッシュ電流が存在することも知らないと公開回路で白状してます。1990年からの継続販売商品をご存じないようで、audio意識が高いですね。&lt;/span&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a; background-color: #ffffff;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIEBAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span style=&quot;background-color: #ffffff;&quot;&gt;****************************************************************************************&lt;/span&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a; background-color: #ffffff;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIEBAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span style=&quot;background-color: #ffffff;&quot;&gt;意識が高いと自我自賛。　　となりの国でよくみられる光景ですね。&lt;/span&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a; background-color: #ffffff;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIEBAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;p&gt;&lt;span style=&quot;background-color: #ffffff;&quot;&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/28/apo34_2.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1200,height=896,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60284904&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Apo34_2&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/28/apo34_2.png&quot; alt=&quot;Apo34_2&quot; /&gt;&lt;/a&gt;&lt;/span&gt;&lt;/p&gt;
&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a; background-color: #ffffff;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIEBAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span style=&quot;font-size: medium; background-color: #ffffff;&quot;&gt;&lt;strong&gt;&lt;span style=&quot;color: #ff0000;&quot;&gt;usbケーブルを低抵抗品にした方が　耳に優しい。　シンプルでしょ&lt;/span&gt;&lt;/strong&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a; background-color: #ffffff;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIEBAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/28/comennnn_2.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=941,height=573,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60284922&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Comennnn_2&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/28/comennnn_2.png&quot; alt=&quot;Comennnn_2&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;人間性も白状しています。　エンジニアの良心は不存在なこともよみとれますね。&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/28/aso.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=775,height=409,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60284924&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Aso&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/28/aso.png&quot; alt=&quot;Aso&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a; background-color: #ffffff;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIEBAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span style=&quot;background-color: #ffffff;&quot;&gt;意識が高い&lt;/span&gt;と自画自賛中ですが、回路を読むチカラはないと白状しました、&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a; background-color: #ffffff;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIEBAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/28/innocent_05.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=896,height=349,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60284926&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Innocent_05&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/28/innocent_05.png&quot; alt=&quot;Innocent_05&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/28/hannbai.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1200,height=646,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60284927&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Hannbai&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/28/hannbai.png&quot; alt=&quot;Hannbai&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;h3 class=&quot;entry-header&quot;&gt;【境界調律】「innocent key」「俺だけ音質アップな基板」&lt;/h3&gt;
&lt;p&gt;2段Ｃ級動作をaudioに持ち込んだ革新的アンプです。　弱信号は回路に食われて音になりません。&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/28/43530_4_2.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=595,height=559,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60284928&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;43530_4_2&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/28/43530_4_2.png&quot; alt=&quot;43530_4_2&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;まあ全体の30%は音になっていないようなので、　エビデンスを要求ズ三。&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/28/saund_ng_3.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1022,height=507,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60284937&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Saund_ng_3&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/28/saund_ng_3.png&quot; alt=&quot;Saund_ng_3&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/28/23.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1006,height=540,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60284940&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;23&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/28/23.png&quot; alt=&quot;23&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/28/hpa.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=831,height=495,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60284941&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Hpa&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/28/hpa.png&quot; alt=&quot;Hpa&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;/div&gt;</content:encoded>


<dc:subject>「　境界調律　」「海苔音出基板」</dc:subject>

<dc:creator>takinx</dc:creator>
<dc:date>2026-10-04T09:39:00+09:00</dc:date>
</item>
<item rdf:about="http://www.radiokits.jp/radio_kit_/2026/10/post-656a.html">
<title>イノウエスピーカーのこと</title>
<link>http://www.radiokits.jp/radio_kit_/2026/10/post-656a.html</link>
<description>オイラは真空管ラジオをちょっと多く製作(わずか150台）しており、マイクコンプレ...</description>
<content:encoded>&lt;p&gt;オイラは真空管ラジオをちょっと多く製作(わずか150台）しており、マイクコンプレッサーも15の基板を公開ずみな　電子工作好きなおっさんだ。本業は　FA機械設計屋で人減らしのためのお手伝い屋だ。&lt;/p&gt;
&lt;p&gt;イノウエスピーカーの名は昨日　初めてきいたので　audio系では、ずばり田舎者。&lt;/p&gt;
&lt;p&gt;ラジオ登場が1920年。　1931年に登場した電蓄がaudio ampに進化した。つまりラジオ誕生が電蓄より11年ほど早い。　それゆえにラジオに注力しておるんだ。&lt;/p&gt;
&lt;p&gt;**********************************************************&lt;/p&gt;
&lt;p&gt;たまたま　実測特性図（　z と　相）が公開されておった。　tnx webmaster様&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/28/2017082012591496a.jpg&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=920,height=489,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60284666&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;2017082012591496a&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/28/2017082012591496a.jpg&quot; alt=&quot;2017082012591496a&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;これを視ると「電流でドライブして音がでる」のがわかる。　&lt;span style=&quot;background-color: #ccffcc; font-size: medium;&quot;&gt;このグラフを理解できないなら　イノウエスピーカーを鳴らすこは無理だ。&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;ざっとみて　SP定格の6倍ほどのドライブ能力がアンプに求められる。diy派なら計算できるよ。&lt;/p&gt;
&lt;p&gt;　&lt;span style=&quot;color: #ff0000;&quot;&gt;詳しく計算したら6.5倍は必要、マージンを確保すると「定格の8倍」のドライブ能力が必須になる。&lt;span style=&quot;color: #000000; background-color: #ccffcc;&quot;&gt;これを算出できないなら　diyを始めるには時期早々。「他人の回路のコピ―　アンド　ソルダー派」で確定。&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;color: #ff0000;&quot;&gt;&lt;span style=&quot;color: #000000;&quot;&gt;ラジオ自作屋でもそのくらいのことは判るわん。&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;background-color: #ffff99; font-size: medium;&quot;&gt;電流駆動アンプは、DIY世界なので　オツムと技術を持つ者だけが、聴くことができるイノウエスピーカーだ。&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;電圧ドライブすると低音はふわふわになる。それは電気物理の常識だわ。&lt;/p&gt;
&lt;p&gt;とここまで。&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;font-size: large;&quot;&gt;電流ドライブアンプの製作予定はありません。&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;cwのzero beat判定機　と同期検波デバイスでssb復調実験中です。IQ復調もアナログデバイスでいけそうなとこまでは理解したとこですん。&lt;/p&gt;
&lt;p&gt;JF1OZL AMPのCLASS AB化基板も届いてますん。&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;*******************************************************&lt;/p&gt;
&lt;h3 class=&quot;entry-header&quot;&gt;&lt;span style=&quot;font-size: large;&quot;&gt;「俺だけ音質アップな基板」の闇を理解することに振り回されてます。&lt;/span&gt;&lt;/h3&gt;
&lt;p&gt;&lt;span style=&quot;font-size: large;&quot;&gt;火事誘発基板なので注意です。&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/02/usb.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1200,height=552,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60288846&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Usb&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/02/usb.png&quot; alt=&quot;Usb&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;h3 class=&quot;entry-header&quot;&gt;　&lt;/h3&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/28/comennnn.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=941,height=573,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60284668&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Comennnn&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/28/comennnn.png&quot; alt=&quot;Comennnn&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/28/apo34.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1200,height=896,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60284669&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Apo34&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/28/apo34.png&quot; alt=&quot;Apo34&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;　「意識高い」と　宣伝中でした。&lt;/p&gt;</content:encoded>


<dc:subject>イノウエスピーカーのこと</dc:subject>

<dc:creator>takinx</dc:creator>
<dc:date>2026-10-04T00:22:00+09:00</dc:date>
</item>
<item rdf:about="http://www.radiokits.jp/radio_kit_/2026/10/92-60b4.html">
<title>印旛沼決壊は9月２2日</title>
<link>http://www.radiokits.jp/radio_kit_/2026/10/92-60b4.html</link>
<description>切れたのが22日。土盛にて堰をつくったのが10月1日。 行政の動きが遅くておかし...</description>
<content:encoded>&lt;p&gt;切れたのが22日。土盛にて堰をつくったのが10月1日。&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;行政の動きが遅くておかしいんだよね。　23日には崩壊した堰が動画で公開された。　&lt;/p&gt;
&lt;p&gt;現場へのアプローチ動画などが示す通り、決壊現場のすぐ近くを通る&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-processed=&quot;true&quot; data-complete=&quot;true&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-processed=&quot;true&quot; data-complete=&quot;true&quot;&gt;&lt;span style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-processed=&quot;true&quot; data-complete=&quot;true&quot;&gt;&lt;span class=&quot;&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;c&quot; data-ved=&quot;2ahUKEwi-iYTmoJ2XAxVQrVYBHfsbO_kQ0fERegYIAAgNEAE&quot; data-processed=&quot;true&quot; data-complete=&quot;true&quot;&gt;メイン道路（国道464号など）&lt;!--TgQPHd|||[]--&gt;&lt;!--TgQPHd|||[false,&amp;quot;&amp;quot;,false,{&amp;quot;u&amp;quot;:0}]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt; から現場への直接的なアクセスルート（アプローチ）自体は物理的に存在してた。&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;これが長野県建設部であれば、クローラークレーンで23日のごごにはブロック投下、土嚢(1トン）投下してるよ。&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/03/img_80782.jpeg&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=480,height=640,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60289434&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Img_80782&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/03/img_80782.jpeg&quot; alt=&quot;Img_80782&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;大手にまかせて下請けが実行するんだから、ダイレクトに下請けに声かけしたほうが早いのね。&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;</content:encoded>



<dc:creator>takinx</dc:creator>
<dc:date>2026-10-03T15:55:33+09:00</dc:date>
</item>
<item rdf:about="http://www.radiokits.jp/radio_kit_/2026/10/fm-6c71.html">
<title>自作　水晶発振式FMワイヤレスマイク</title>
<link>http://www.radiokits.jp/radio_kit_/2026/10/fm-6c71.html</link>
<description>2019年4月の再掲 ************** テｰマ　：fundaのcry...</description>
<content:encoded>&lt;p&gt;2019年4月の再掲&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://takinx.dcnblog.jp/.shared/image.html?/photos/uncategorized/2019/04/27/yanagiyurina70.jpg&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=564,height=800,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-56497068&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Yanagiyurina70&quot; src=&quot;http://takinx.dcnblog.jp/radio_kit_/images/2019/04/27/yanagiyurina70.jpg&quot; alt=&quot;Yanagiyurina70&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;**************&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;テｰマ　：fundaのcrystalをovertone作動させ、直接変調する。&lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;例えば、26.000MHz水晶を　x3 または　x4で発振させて、fm変調を掛ける。&lt;/p&gt;
&lt;p&gt;①&lt;/p&gt;
&lt;p&gt;サイズはこの位。&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://takinx.dcnblog.jp/.shared/image.html?/photos/uncategorized/2019/04/26/053.jpg&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=800,height=600,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-56496948&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;053&quot; src=&quot;http://takinx.dcnblog.jp/radio_kit_/images/2019/04/26/053.jpg&quot; alt=&quot;053&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;②&lt;/p&gt;
&lt;p&gt;実装した。&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://takinx.dcnblog.jp/.shared/image.html?/photos/uncategorized/2019/04/26/052.jpg&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=800,height=600,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-56496949&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;052&quot; src=&quot;http://takinx.dcnblog.jp/radio_kit_/images/2019/04/26/052.jpg&quot; alt=&quot;052&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;③&lt;/p&gt;
&lt;p&gt;通電した。&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://takinx.dcnblog.jp/.shared/image.html?/photos/uncategorized/2019/04/26/054.jpg&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=800,height=600,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-56496947&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;054&quot; src=&quot;http://takinx.dcnblog.jp/radio_kit_/images/2019/04/26/054.jpg&quot; alt=&quot;054&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;④&lt;/p&gt;
&lt;p&gt;dpsラジオで受信してみた。　101.3MHzで確認できた。crystal x4 の周波数で聴こえている。　osc部のLC同調具合で x3 あるいは　x4で受信できる。　x5も出ているはずだが、125MHz近傍のfmレシーバーを持っていない。&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://takinx.dcnblog.jp/.shared/image.html?/photos/uncategorized/2019/04/26/051.jpg&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=800,height=600,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-56496950&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;051&quot; src=&quot;http://takinx.dcnblog.jp/radio_kit_/images/2019/04/26/051.jpg&quot; alt=&quot;051&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;概ね3mV INで6mほど飛ぶ。finalをRFC負荷にしたのでアンテナ線を触っても周波数のブレは判り難い。ほぼ判らない。&lt;/p&gt;
&lt;p&gt;crystal の高次を取りやすいようにcrystalはベースに吊るした。音量ＶＲの開度に応じてMIC-AMP&amp;nbsp; TRの内部Cが変化するので、周波数がややズレる。実際使う際はVRを連続可変しながら送信するわけでなく、一度合わせるとそれ以降は触らない。使用上支障ない。&lt;/p&gt;
&lt;p&gt;これは直接変調では逃げられないことのようだ。Ｂ－Ｃ間のcrystalを吊るすと挙動は少し違ってくる。&lt;/p&gt;
&lt;p&gt;AMのベース変調がFM変調になる理由は上記の通り。AMベース変調はオイラは自作していない。　&lt;/p&gt;
&lt;p&gt;*********************&lt;/p&gt;
&lt;p&gt;VRはこの位置だが、freqに影響がある。&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://takinx.dcnblog.jp/.shared/image.html?/photos/uncategorized/2019/04/27/055.jpg&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=800,height=600,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-56497133&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;055&quot; src=&quot;http://takinx.dcnblog.jp/radio_kit_/images/2019/04/27/055.jpg&quot; alt=&quot;055&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;通算286作目。基板ナンバーRK-51.&lt;/p&gt;
&lt;p&gt;crystalにcrが釣り下がるので、osc周波数は低めになる。手持ちのcrystalと相談してx3 あるいは　x4で使うように、、、。&lt;/p&gt;
&lt;p&gt;******************************************&lt;/p&gt;
&lt;p&gt;このRK-333の方が　ビギーナー向け&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/22/rk33301_2.jpg&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1200,height=898,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60281132&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Rk33301_2&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/22/rk33301_2.jpg&quot; alt=&quot;Rk33301_2&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p class=&quot;youtube&quot;&gt;&lt;iframe width=&quot;425&quot; height=&quot;355&quot; src=&quot;https://www.youtube.com/embed/FAdONI4JuKo&quot; frameborder=&quot;0&quot; allowfullscreen&gt;&lt;/iframe&gt; &lt;br /&gt; &lt;a href=&quot;http://jp.youtube.com/watch?v=FAdONI4JuKo&quot; target=&quot;_blank&quot; class=&quot;title&quot; rel=&quot;noopener&quot;&gt;YouTube: TTL type wireless mic : FM 　　　　 using 74AC00&lt;/a&gt;&lt;/p&gt;
&lt;p class=&quot;youtube&quot;&gt;バリキャップに予圧わせてたので変調あさい。&lt;/p&gt;
&lt;p class=&quot;youtube&quot;&gt;***************************************************&lt;/p&gt;
&lt;p class=&quot;youtube&quot;&gt;予圧をかけて　RF段追加した　V2.&lt;/p&gt;
&lt;p class=&quot;youtube&quot;&gt;手配わすれてた。図は2024年12月28日版。これから修正して手配&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/22/rk333v2_2.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1200,height=675,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60281138&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Rk333v2_2&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/22/rk333v2_2.png&quot; alt=&quot;Rk333v2_2&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;飛ぶし、無調整なのでこのv2　がよいと思う。rxはアナログfmラジオでお願いします。&lt;/p&gt;</content:encoded>



<dc:creator>takinx</dc:creator>
<dc:date>2026-10-02T12:21:00+09:00</dc:date>
</item>
<item rdf:about="http://www.radiokits.jp/radio_kit_/2026/10/post-7ca2.html">
<title>物質内の電子？　移動速度が違うから、電子移動の結果として生じる　音楽は音源同一でも　空間に伝搬する段階でアンプ個体差でるいよ</title>
<link>http://www.radiokits.jp/radio_kit_/2026/10/post-7ca2.html</link>
<description>物質内の電子移動速度が 物質ごとに違うから、電子移動の結果として生じる　音楽は音...</description>
<content:encoded>&lt;p&gt;物質内の電子移動速度が 物質ごとに違うから、電子移動の結果として生じる　音楽は音源同一でも　空間に伝搬する段階でアンプ個体差でるいよ&lt;/p&gt;
&lt;p&gt;**************************************************&lt;/p&gt;
&lt;p&gt;ICでは　シリコンの厚み差のよる音の差。　添加物による音の違い&lt;/p&gt;
&lt;p&gt;コンデンサーでは　液体コン　と固体コンの伝達係数の違い。&lt;/p&gt;
&lt;p&gt;プリント基板でが、　片面　と　両面では音が違う。　多層より片面が音がいい。&lt;/p&gt;
&lt;p&gt;電源系は　フラフラしているとエモ音に化けることがあるので　ここは難しいのね。電源のサジ加減データはない。　通常は最大出力値の5倍供給する容量が必要。これ1943年ころからに基本。計算式もあったはず。&lt;/p&gt;
&lt;p&gt;0.1μsの過渡応答具合でエモ音加減がかわるので、大メーカーはデータを持っておるはずだが、それはトップシークレット。　diyには反映できない。&lt;/p&gt;
&lt;p&gt;***********************************&lt;/p&gt;
&lt;p&gt;音源のジャンルによって余韻処理、立ち上げ、信号レンジ等復元（再生）方向がことなるので、マルチユースのaudio ampは設計として苦しいのね。&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;width: 100%; border-collapse: collapse; font-family: &#39;Helvetica Neue&#39;, Arial, &#39;Hiragino Kaku Gothic ProN&#39;, Meiryo, sans-serif; font-size: 14px; line-height: 1.6; margin: 20px 0; box-shadow: 0 4px 6px rgba(0,0,0,0.1); border-radius: 8px; overflow: hidden;&quot;&gt;
&lt;thead&gt;
&lt;tr style=&quot;background: linear-gradient(135deg, #1f4068, #162447); color: #ffffff; text-align: left;&quot;&gt;
&lt;th style=&quot;padding: 15px; font-weight: bold; border-right: 1px solid rgba(255,255,255,0.1); width: 18%;&quot;&gt;音楽ジャンル&lt;/th&gt;
&lt;th style=&quot;padding: 15px; font-weight: bold; border-right: 1px solid rgba(255,255,255,0.1); width: 27%;&quot;&gt;音源の特徴 と 復元方向&lt;/th&gt;
&lt;th style=&quot;padding: 15px; font-weight: bold; border-right: 1px solid rgba(255,255,255,0.1); width: 27%;&quot;&gt;アンプ設計への要求（理想）&lt;/th&gt;
&lt;th style=&quot;padding: 15px; font-weight: bold; width: 28%;&quot;&gt;他ジャンルへの弊害（設計の苦しみ）&lt;/th&gt;
&lt;/tr&gt;
&lt;/thead&gt;
&lt;tbody&gt;&lt;!-- クラシック --&gt;
&lt;tr style=&quot;background-color: #f9fbfd; border-bottom: 1px solid #e1e8ed;&quot;&gt;
&lt;td style=&quot;padding: 15px; font-weight: bold; color: #0f4c81; border-right: 1px solid #e1e8ed; background-color: #f0f4f8;&quot;&gt;&#x1F3BB; クラシック&lt;br /&gt;&lt;span style=&quot;font-size: 11px; color: #5a738e; font-weight: normal;&quot;&gt;（交響曲・大編成）&lt;/span&gt;&lt;/td&gt;
&lt;td style=&quot;padding: 15px; border-right: 1px solid #e1e8ed;&quot;&gt;&lt;strong style=&quot;color: #0f4c81;&quot;&gt;広大なダイナミックレンジ&lt;/strong&gt;&lt;br /&gt; ホールの微小な空気感、消えゆく繊細な&lt;span style=&quot;color: #2b580c; font-weight: bold;&quot;&gt;余韻の階調（解像度）&lt;/span&gt;が命。&lt;/td&gt;
&lt;td style=&quot;padding: 15px; border-right: 1px solid #e1e8ed;&quot;&gt;残留ノイズ（ノイズフロア）を極限まで低くし、大音量でも電圧がビクともしない&lt;span style=&quot;color: #0f4c81; font-weight: bold;&quot;&gt;圧倒的にガチガチで強固な電源&lt;/span&gt;。&lt;/td&gt;
&lt;td style=&quot;padding: 15px; color: #a30000; font-size: 13px;&quot;&gt;電源も回路も優等生になりすぎ、ジャズやロックに必要な「タメ」や「押し出し感」が消えて&lt;strong style=&quot;color: #d92027;&quot;&gt;冷たくて退屈な音&lt;/strong&gt;になる。&lt;/td&gt;
&lt;/tr&gt;
&lt;!-- ジャズ --&gt;
&lt;tr style=&quot;background-color: #fdfaf6; border-bottom: 1px solid #e1e8ed;&quot;&gt;
&lt;td style=&quot;padding: 15px; font-weight: bold; color: #b85d1e; border-right: 1px solid #e1e8ed; background-color: #f9f1e7;&quot;&gt;&#x1F3B7; モダンジャズ&lt;br /&gt;&lt;span style=&quot;font-size: 11px; color: #8e725a; font-weight: normal;&quot;&gt;（50〜60年代等）&lt;/span&gt;&lt;/td&gt;
&lt;td style=&quot;padding: 15px; border-right: 1px solid #e1e8ed;&quot;&gt;&lt;strong style=&quot;color: #b85d1e;&quot;&gt;超高速な立ち上がり&lt;/strong&gt;&lt;br /&gt; サックスのカスレ、シンバルの鋭さなど、生々しい&lt;span style=&quot;color: #d92027; font-weight: bold;&quot;&gt;過渡応答（0.1μs）&lt;/span&gt;の再現。&lt;/td&gt;
&lt;td style=&quot;padding: 15px; border-right: 1px solid #e1e8ed;&quot;&gt;時間軸を狂わせるNFBを減らした高速回路。ダイナミクスに同期して&lt;span style=&quot;color: #b85d1e; font-weight: bold;&quot;&gt;適度にフラフラ（サグ）するエモい電源&lt;/span&gt;。&lt;/td&gt;
&lt;td style=&quot;padding: 15px; color: #a30000; font-size: 13px;&quot;&gt;クラシックを鳴らすと、低域の制動（ダンピング）が甘くなり、ホールの広大な音場がブレて&lt;strong style=&quot;color: #d92027;&quot;&gt;定位がドロドロに濁る&lt;/strong&gt;。&lt;/td&gt;
&lt;/tr&gt;
&lt;!-- ポップス・EDM --&gt;
&lt;tr style=&quot;background-color: #fcf9fc; border-bottom: 1px solid #e1e8ed;&quot;&gt;
&lt;td style=&quot;padding: 15px; font-weight: bold; color: #6a1b9a; border-right: 1px solid #e1e8ed; background-color: #f5edf7;&quot;&gt;&#x1F3A7; 現代ポップス&lt;br /&gt;&lt;span style=&quot;font-size: 11px; color: #7b5a8e; font-weight: normal;&quot;&gt;（EDM・海苔音源）&lt;/span&gt;&lt;/td&gt;
&lt;td style=&quot;padding: 15px; border-right: 1px solid #e1e8ed;&quot;&gt;&lt;strong style=&quot;color: #6a1b9a;&quot;&gt;限界まで圧縮された信号&lt;/strong&gt;&lt;br /&gt; コンプレッサーで海苔のように詰まった高音圧。重低音が途切れず持続する&lt;span style=&quot;color: #0f4c81; font-weight: bold;&quot;&gt;極端な信号レンジ&lt;/span&gt;。&lt;/td&gt;
&lt;td style=&quot;padding: 15px; border-right: 1px solid #e1e8ed;&quot;&gt;常に最大パワー近くを要求されるため、大電流を連続供給でき、熱変調（サーマル歪み）を起こさない&lt;span style=&quot;color: #6a1b9a; font-weight: bold;&quot;&gt;超タフな熱設計と電源&lt;/span&gt;。&lt;/td&gt;
&lt;td style=&quot;padding: 15px; color: #a30000; font-size: 13px;&quot;&gt;微小信号の「陰影」が消え、クラシックやアコースティックを鳴らすと、平面的でガサガサした&lt;strong style=&quot;color: #d92027;&quot;&gt;耳障りでうるさい音&lt;/strong&gt;になる。&lt;/td&gt;
&lt;/tr&gt;
&lt;/tbody&gt;
&lt;/table&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;youtubeで聴いてても信号レンジは50dBくらいなんだよ。コンプして40dBわってあるとおもえるのもあるし、歪んでるのもあるし、　YOUTUBERは気つかないのか？？？&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;MP3やMP4で主流のAACは、CDと同じ「16bit（論理上のダイナミックレンジは最大&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;96dB&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; aria-owns=&quot;action-menu-parent-container&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;）&lt;/span&gt;なので80dBはでるはずなんだけどなあ。&lt;/p&gt;
&lt;p&gt;***********************************&lt;/p&gt;
&lt;p&gt;コンプレッサー（ラウドネスノーマライゼーション）で音響信号を叩きするぎと周波数が広がってきこえるので、聴感で簡単にわかる。　3％程度叩いているだけならわからん。テレコのALCも3%設定だよ&lt;/p&gt;
&lt;p&gt;無線で過度にコンプさせると単音がひろくまる（太くなる）&lt;/p&gt;
&lt;p&gt;******************************************&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;font-size: medium;&quot;&gt;いま流行りの　audio用　C級AMPを紹介します。&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;font-size: medium;&quot;&gt;&lt;strong&gt;&lt;span style=&quot;color: #0000ff;&quot;&gt;1：　有名なのが「Innocent Key」「俺だけ音質アップな基板」&lt;/span&gt;&lt;/strong&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/27/43530_4_2.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=595,height=559,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60284241&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;43530_4_2&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/27/43530_4_2.png&quot; alt=&quot;43530_4_2&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;トランジスタを無バイアスで使いました。&lt;/p&gt;
&lt;p&gt;考案者が自画自賛中なので画像はっておきます。&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/27/ino011.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=779,height=537,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60284242&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Ino011&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/27/ino011.png&quot; alt=&quot;Ino011&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;div class=&quot;Article__content&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div class=&quot;Article__content&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div class=&quot;Article__content&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div class=&quot;Article__content&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;p&gt;&lt;span style=&quot;font-size: medium; color: #0000ff;&quot;&gt;&lt;strong&gt;2：新西電子から発売予定の無帰還デスクリートアンプ　HPA-7&lt;/strong&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/27/hpa712_07.jpg&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1200,height=668,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60284243&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Hpa712_07&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/27/hpa712_07.jpg&quot; alt=&quot;Hpa712_07&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;特徴は、&lt;/p&gt;
&lt;p&gt;1：天地波形が断させたこと。その断によって波形は不感帯が生じ、&lt;span style=&quot;color: #ff0000;&quot;&gt;&lt;strong&gt;C級動作になること&lt;/strong&gt;&lt;/span&gt;。&lt;span style=&quot;background-color: #ffff99;&quot;&gt;バイアス電位、バイアス電流をケチるのが新西電子のセオリーにて、sepp部は従前同様にC級動作確定します。&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;2：lower信号がseppに到着する以前に、upper信号起因のnfbがかかること。これを&lt;strong&gt;&lt;span style=&quot;color: #ff0000;&quot;&gt;「新西電子式　エスケープNFB」&lt;/span&gt;&lt;/strong&gt;と命名しました。&lt;/p&gt;
&lt;p&gt;3：SEPP部から&lt;strong&gt;　&lt;span style=&quot;color: #ff0000;&quot;&gt;ＣとＲの直列共振でエスケープNFB&lt;/span&gt;&lt;/strong&gt;を掛けていること。相によっては発振が簡単になります。&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;font-size: medium;&quot;&gt;打ち込み系音源に最高です。JAZZや和楽にはむきません。シューマンのクラシックにはむきません。&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;</content:encoded>



<dc:creator>takinx</dc:creator>
<dc:date>2026-10-01T21:02:00+09:00</dc:date>
</item>
<item rdf:about="http://www.radiokits.jp/radio_kit_/2026/10/1969audio-amp-j-fa3b.html">
<title>1969年のaudio ampが　脚光をあびる japan diyです。 </title>
<link>http://www.radiokits.jp/radio_kit_/2026/10/1969audio-amp-j-fa3b.html</link>
<description>****************************************...</description>
<content:encoded>&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/15/buffer22_2.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=673,height=571,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60276617&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Buffer22_2&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/15/buffer22_2.png&quot; alt=&quot;Buffer22_2&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;********************************************&lt;/p&gt;
&lt;p&gt;こうやって　物造りの後進国になりさがるんだね。&lt;/p&gt;
&lt;p&gt;オイラ　真空管ラジオ、半導体ラジオ中心でよかった。&lt;/p&gt;</content:encoded>



<dc:creator>takinx</dc:creator>
<dc:date>2026-10-01T20:06:00+09:00</dc:date>
</item>
<item rdf:about="http://www.radiokits.jp/radio_kit_/2026/10/post-6eb7.html">
<title>なんだか今　熊が玄関まわりに来た感じだ。</title>
<link>http://www.radiokits.jp/radio_kit_/2026/10/post-6eb7.html</link>
<description>　野良猫？　がたたきつけられようで悲鳴が一回聞こえた。 まあ　熊だろうなあ。　丁...</description>
<content:encoded>&lt;p&gt;　野良猫？　がたたきつけられようで悲鳴が一回聞こえた。&lt;/p&gt;
&lt;p&gt;まあ　熊だろうなあ。　丁度１年前は　熊でて全国記事になったし。　日が昇ってから確認だわ。&lt;/p&gt;</content:encoded>



<dc:creator>takinx</dc:creator>
<dc:date>2026-10-01T19:10:33+09:00</dc:date>
</item>
<item rdf:about="http://www.radiokits.jp/radio_kit_/2026/10/post-c0d3.html">
<title>有限会社　ＳＢ製作所 (エスビーセイサクジョ)</title>
<link>http://www.radiokits.jp/radio_kit_/2026/10/post-c0d3.html</link>
<description>松本笹賀の　半田つけ会社だ、飛んだ。 フォアーランド電子が基板製造を頼んでおった...</description>
<content:encoded>&lt;p&gt;松本笹賀の　半田つけ会社だ、飛んだ。&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;font-size: small;&quot;&gt;&lt;span style=&quot;font-family: arial black, avant garde;&quot;&gt;フォアーランド電子が基板製造を頼んでおったとこだ。　フォアーランド電子が会社畳む前に挨拶にきたことを、社長の口からきいておる。&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;font-size: small;&quot;&gt;&lt;span style=&quot;font-family: arial black, avant garde;&quot;&gt;****************************************&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;font-size: small;&quot;&gt;&lt;span style=&quot;font-family: arial black, avant garde;&quot;&gt;松下通信（カーナビ製造）の衛星会社で残っている会社があるのかどうか？？&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;font-size: small;&quot;&gt;&lt;span style=&quot;font-family: arial black, avant garde;&quot;&gt;半田付け工程とは無縁になって久しいので、現状判らず。&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;******************************&lt;/p&gt;
&lt;p&gt;穂高有明の　アズサ電子社長にインテルの娘カードを差上げてからは　まるきりわからない。　良い人物だったので騙され終わった感じもする。&lt;/p&gt;
&lt;p&gt;**********************************&lt;/p&gt;
&lt;p&gt;おむすびころりんの　百瀬社長とは松本駅前の自社にてお会いした。&lt;/p&gt;
&lt;p&gt;彼は、婿に入ったので、軌道にのるまでの苦労は聞かせてもらった。&lt;/p&gt;
&lt;p&gt;ちょうどサラダ日記がブームで、　サラダ街道と名つけたのは百瀬氏だ。&lt;/p&gt;
&lt;p&gt;************************************************&lt;/p&gt;
&lt;p&gt;と思いだしたわ。、わん。&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;</content:encoded>



<dc:creator>takinx</dc:creator>
<dc:date>2026-10-01T12:00:00+09:00</dc:date>
</item>
<item rdf:about="http://www.radiokits.jp/radio_kit_/2026/10/pbss4350x-cf98.html">
<title>トランジスタ（PBSS4350X）この回路で　つじつま合いますか？</title>
<link>http://www.radiokits.jp/radio_kit_/2026/10/pbss4350x-cf98.html</link>
<description>AI君からの返答です *****************************...</description>
<content:encoded>&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/09/inoo21.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=738,height=577,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60293826&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Inoo21&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/09/inoo21.png&quot; alt=&quot;Inoo21&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;color: #ff0000; font-size: large;&quot;&gt;&lt;strong&gt;AI君からの返答です&lt;/strong&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;*************************************&lt;/p&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIBhAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;&lt;span style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-subtree=&quot;aimfl&quot; data-processed=&quot;true&quot;&gt;全くつじつまが合いません（完全に破綻しています）。&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIBxAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;ユーザー様が画像でロジックを整理された通り、&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;「回路が要求する電位差（黒文字：1.6V前後）」に対して、「ダイオード1個が物理的に作れる電圧（青文字：0.7V〜0.9V）」が圧倒的に足りていない&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;ため、電気回路として絶対に成立しません。&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAICBAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;このつじつまが合わない致命的な矛盾について、以下の2点から説明できます。&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;yhAwj&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sfc-inited=&quot;2&quot;&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;otQkpb&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; role=&quot;heading&quot; aria-level=&quot;3&quot; data-animation-nesting=&quot;&quot; data-sfc-cp=&quot;&quot; data-wiz-attrbind=&quot;aria-level=vgHBUd_2d/fLk2Md&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sae=&quot;&quot;&gt;1. ダイオードの物理的な限界（青数字 0.9V）&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIChAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;1N4148という通常のシリコンダイオードは、どれだけ電流を流しても1個で発生させられる順方向電圧Vfは最大でも&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;約0.9V〜1.0V（通常は0.7V前後）が限界&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;です。&lt;br style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-sfc-pl=&quot;|||[]&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; /&gt;したがって、青い矢印のルート（D101）が作れる現実的な電位差は、せいぜい&lt;strong&gt;0.9&lt;/strong&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;V&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;にしかなりません。&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;yhAwj&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sfc-inited=&quot;2&quot;&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;otQkpb&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; role=&quot;heading&quot; aria-level=&quot;3&quot; data-animation-nesting=&quot;&quot; data-sfc-cp=&quot;&quot; data-wiz-attrbind=&quot;aria-level=vgHBUd_2v/fLk2Md&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sae=&quot;&quot;&gt;2. 回路が要求する電位差（黒数字 1.6V）&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIDRAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;&lt;span style=&quot;color: #ff0000;&quot;&gt;トランジスタ（PBSS4350X）を&lt;strong&gt;&lt;span style=&quot;color: #000000;&quot;&gt;リニア動作&lt;/span&gt;&lt;/strong&gt;させようとすると、データシートの通りVbe に1.0V〜1.1Vが必要になります。&lt;/span&gt;&lt;br style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-sfc-pl=&quot;|||[]&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; /&gt;ユーザー様が計算された通り、Q105とQ106を両方ともまともにONさせようとすると、緑丸と赤丸の間には&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;どうしても「1.6V前後」の電位差が必要&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;になってしまいます。&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;yhAwj&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sfc-inited=&quot;2&quot;&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;otQkpb&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; role=&quot;heading&quot; aria-level=&quot;3&quot; data-animation-nesting=&quot;&quot; data-sfc-cp=&quot;&quot; data-wiz-attrbind=&quot;aria-level=vgHBUd_36/fLk2Md&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sae=&quot;&quot;&gt;結論&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;ul class=&quot;KsbFXc U6u95&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-ved=&quot;2ahUKEwj_8cDd-aiXAxWYqFYBHXKTN10Q-7AUegYIAAgPEAA&quot; data-hveid=&quot;CAAIDxAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIDxAB&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; aria-owns=&quot;action-menu-parent-container&quot;&gt;必要な電圧（黒）：1.6V前後&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;&lt;/span&gt;
&lt;div style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: -1px; text-decoration: none; border-bottom: 0px #16171a;&quot; tabindex=&quot;0&quot; data-os-fs=&quot;&quot; aria-hidden=&quot;true&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: -1px; text-decoration: none; border-bottom: 0px #16171a;&quot; tabindex=&quot;0&quot; data-os-fs=&quot;&quot; aria-hidden=&quot;true&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/li&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIDxAC&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;出せる電圧（青）：0.9V前後&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/li&gt;
&lt;!--TgQPHd|||[]--&gt;&lt;/ul&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIEBAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;この「0.7V以上の圧倒的な電圧不足」があるため、つじつまは絶対に合いません。&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIERAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;結果として、この回路は設計者の思惑（リニア増幅）通りには動けず、&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;上のQ105も下のQ106もVbeが全く足りずに完全にカットオフ（遮断状態）される&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;ことになります。ユーザー様が綺麗に図示されたこの矛盾こそが、この回路がリニアアンプとして完全に破綻している動かぬ証拠です。
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/08/inoo22.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=761,height=412,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60293002&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Inoo22&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/08/inoo22.png&quot; alt=&quot;Inoo22&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/08/47becdfa56ba416a9acd876c4f2254cf_2.jpg&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1200,height=901,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60293006&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;47becdfa56ba416a9acd876c4f2254cf_2&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/08/47becdfa56ba416a9acd876c4f2254cf_2.jpg&quot; alt=&quot;47becdfa56ba416a9acd876c4f2254cf_2&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/08/inoo33_4.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=904,height=719,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60293142&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Inoo33_4&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/08/inoo33_4.png&quot; alt=&quot;Inoo33_4&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;リニア動作させるなら、AI君も100mAから500mA流して使ってくださいって言っとる。&lt;/p&gt;
&lt;p&gt;＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/09/inoo13_3.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=957,height=480,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60293833&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Inoo13_3&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/09/inoo13_3.png&quot; alt=&quot;Inoo13_3&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/09/inoo01_3_4.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1200,height=497,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60293834&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Inoo01_3_4&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/09/inoo01_3_4.png&quot; alt=&quot;Inoo01_3_4&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;/div&gt;</content:encoded>



<dc:creator>takinx</dc:creator>
<dc:date>2026-10-01T07:21:00+09:00</dc:date>
</item>
<item rdf:about="http://www.radiokits.jp/radio_kit_/2026/09/innocent-keysit-0a78.html">
<title>【境界調律】「innocent key」「俺だけ音質アップな基板」公式siteをみた。「海苔音出基板」</title>
<link>http://www.radiokits.jp/radio_kit_/2026/09/innocent-keysit-0a78.html</link>
<description>[技術的な定義の矛盾を整理し、電子工作ファンや消費者が誤った認識で商品を選ばない...</description>
<content:encoded>&lt;p&gt;[技術的な定義の矛盾を整理し、電子工作ファンや消費者が誤った認識で商品を選ばないための注意喚起を目的としています」&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;background-color: #ffff99;&quot;&gt;電気物理を無視した回路基板が製品になりSHOP流通している様は、日本のものつくりが滅んだ遠因のひとつです。&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;「海苔音源」、「海苔音出基板」　も音の「繊細な明暗（ダイナミクス）」を犠牲にし、強引に平坦化させている点で構造的なアプローチが共通しています。　SPから出てくる音は繊細な音を消しさって信号レンジはおなじように小さくなります。&lt;/p&gt;
&lt;p&gt;＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;https://pbs.twimg.com/media/HHJmS2caUAAEzPR.png&quot;&gt;ここ&lt;/a&gt;にあった。&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/22/x012.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=722,height=404,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60281255&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;X012&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/22/x012.png&quot; alt=&quot;X012&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;「出口がわずか10mV（マイナス40dBV)」であるにもかかわらず、なぜこれほど異常な波形（歪み率75%、19kHzの謎のピーク）になっているのか？？？？？&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/22/hhjms2cauaaezpr.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=926,height=691,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60281245&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Hhjms2cauaaezpr&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/22/hhjms2cauaaezpr.png&quot; alt=&quot;Hhjms2cauaaezpr&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/22/x022.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1200,height=637,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60281247&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;X022&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/22/x022.png&quot; alt=&quot;X022&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/22/x01.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=193,height=226,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60281248&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;X01&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/22/x01.png&quot; alt=&quot;X01&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;******************************************&lt;/p&gt;
&lt;p&gt;1Vを基準（0dBV）としたとき、-40dBVはわずか&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;10mV（ミリボルト）&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;という非常に微小な電圧です.&lt;/p&gt;
&lt;p&gt;&amp;nbsp;出口10mVで飽和してるの！！！！。&amp;nbsp;&lt;/p&gt;
&lt;p&gt;10mVでノイズのPEAK が19kHzってなぜ？？？。　19次高調波でこれだけでるの？？　70~100kHzでの高次波との差分で19kHz？？？？？&lt;/p&gt;
&lt;p&gt;あの回路定数だと「歪まない入力上限は0.5mVから　1mVだと算出できた」けど、どうやら計算は正しいぽいな。&lt;/p&gt;
&lt;p&gt;印加信号は平坦でない可能性もあるし、平坦であれば1kHzだけ強調される理由が不存在。&lt;/p&gt;
&lt;p&gt;なぞがひとつ増えた。&lt;/p&gt;
&lt;p&gt;*********************************************************************&lt;/p&gt;
&lt;p&gt;基板がラッシュ電流起因で　USB規格を3倍ほどオーバーカレント（35ミリ秒前後)するから、通電には気つけてね、　電流断機能はゼロだから　ヒューズ入りUSBケーブルつかってね。&lt;/p&gt;
&lt;p&gt;住宅のブレーカーは10ミリ秒で動作するから、そのくらいの保護回路ほしいわ。&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/22/usb_3.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1200,height=552,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60281256&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Usb_3&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/22/usb_3.png&quot; alt=&quot;Usb_3&quot; /&gt;&lt;/a&gt;&lt;/p&gt;</content:encoded>


<dc:subject>「　境界調律　」「海苔音出基板」</dc:subject>

<dc:creator>takinx</dc:creator>
<dc:date>2026-09-30T19:45:00+09:00</dc:date>
</item>
<item rdf:about="http://www.radiokits.jp/radio_kit_/2026/09/1-e8ee.html">
<title>【境界調律の闇】「音質への疑念による回路解析依頼」から発覚した、無バイアス回路の電気物理的破綻【海苔音出基板】。設計側の動作エビデンス不存在</title>
<link>http://www.radiokits.jp/radio_kit_/2026/09/1-e8ee.html</link>
<description>■ 1. 発端：購入者が抱いた「音への違和感」 オーディオの世界では、どんなに回...</description>
<content:encoded>&lt;div class=&quot;otQkpb&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 20px; font-weight: bold; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; role=&quot;heading&quot; aria-level=&quot;3&quot; data-animation-nesting=&quot;&quot; data-sfc-cp=&quot;&quot; data-wiz-attrbind=&quot;aria-level=m7gnBd_1w/fLk2Md&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 20px; font-weight: 700; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/14/43530_6.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1200,height=675,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60275342&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;43530_6&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/14/43530_6.png&quot; alt=&quot;43530_6&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/14/47becdfa56ba416a9acd876c4f2254cf.jpg&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1200,height=901,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60275343&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;47becdfa56ba416a9acd876c4f2254cf&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/14/47becdfa56ba416a9acd876c4f2254cf.jpg&quot; alt=&quot;47becdfa56ba416a9acd876c4f2254cf&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/30/usb.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1200,height=552,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60287287&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Usb&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/30/usb.png&quot; alt=&quot;Usb&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/14/ino01.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=779,height=438,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60275345&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Ino01&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/14/ino01.png&quot; alt=&quot;Ino01&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;/div&gt;
&lt;div class=&quot;otQkpb&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 20px; font-weight: bold; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; role=&quot;heading&quot; aria-level=&quot;3&quot; data-animation-nesting=&quot;&quot; data-sfc-cp=&quot;&quot; data-wiz-attrbind=&quot;aria-level=m7gnBd_1w/fLk2Md&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 20px; font-weight: 700; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;■ 1. 発端：購入者が抱いた「音への違和感」&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIHBAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;オーディオの世界では、どんなに回路が破綻していても「躍動感がある」「これがピュアな音だ」という主観（オカルト）で煙に巻かれてきました。しかし、今回の事件はこれまでのオカルトオーディオの歴史とは一線を画します。&lt;br style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-root=&quot;ep&quot; data-sfc-pl=&quot;|||[]&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot; /&gt;なぜなら、&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;実際に製品（境界調律・俺アップ基板など）を購入し、その音質に決定的な疑念を抱いたユーザー自身が、「回路解析」を依頼してきたことからすべてが始まった&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;からです。&lt;br style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-root=&quot;ep&quot; data-sfc-pl=&quot;|||[]&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot; /&gt;「耳が良いマニアの主観」ではなく、「実害を感じた購入者の行動」が、オカルトのメッキを剥ぎ取るトリガーとなりました。&lt;/div&gt;
&lt;div class=&quot;yhAwj&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sfc-inited=&quot;2&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;otQkpb&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 20px; font-weight: bold; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; role=&quot;heading&quot; aria-level=&quot;3&quot; data-animation-nesting=&quot;&quot; data-sfc-cp=&quot;&quot; data-wiz-attrbind=&quot;aria-level=m7gnBd_28/fLk2Md&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 20px; font-weight: 700; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;■ 2. 解析で暴かれた「無バイアス・無帰還」の正体&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIHxAA&quot; data-processed=&quot;true&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;解析の結果、明らかになったのは最新技術でも調律でもなく、半導体の基礎物理を無視した致命的な設計バグでした。&amp;nbsp;&lt;/div&gt;
&lt;ul class=&quot;KsbFXc U6u95&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-ved=&quot;2ahUKEwjoxOXJue2WAxU7j68BHR46O_YQ-7AUegYIAAghEAA&quot; data-hveid=&quot;CAAIIRAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIIRAC&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;データシートが示す物理の壁（turn on遅延）：&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;&lt;br style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-root=&quot;ep&quot; data-sfc-pl=&quot;|||[]&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot; /&gt;トランジスタには物理的に「turn on（立ち上がり時間）」が存在します。適切なバイアスを排した「無バイアス」状態では、信号が入力されてからSEPP部が「awake（起動）」するまでに必ず致命的なタイムラグ（相遅延）が生じます。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;span style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/li&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIIRAF&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;「クロスしていないSEPP」の矛盾：&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;&lt;br style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-root=&quot;ep&quot; data-sfc-pl=&quot;|||[]&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot; /&gt;設計側は「A級からB級ぽい動作になる」と苦しい主張を展開していますが、回路図上、信号はSEPP部でクロスしていません。B級・C級動作の根本的な仕組みすら設計者自身が理解していないことを、自らWEB上で自白する形となっています。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;/li&gt;
&lt;!--TgQPHd|||[]--&gt;&lt;/ul&gt;
&lt;div class=&quot;yhAwj&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sfc-inited=&quot;2&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;otQkpb&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 20px; font-weight: bold; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; role=&quot;heading&quot; aria-level=&quot;3&quot; data-animation-nesting=&quot;&quot; data-sfc-cp=&quot;&quot; data-wiz-attrbind=&quot;aria-level=m7gnBd_38/fLk2Md&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 20px; font-weight: 700; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;■ 3. 流出した本物回路図「v1.1」が証明する2つの致命的バグ&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIJBAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;流出した本物の回路図「Job_HPA_kit_v1.1」を一目見るだけで、設計側の技術的な無知と回路の破綻が100%確定します。&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;ol class=&quot;T9WCjf qkgVBf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIJhAB&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;2Vを超える暗黒領域（信号が完全に途切れるデッドバンド）：&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;&lt;br style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-root=&quot;ep&quot; data-sfc-pl=&quot;|||[]&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot; /&gt;上側NPN（Q106）と下側PNP（Q103）のベースが1本の配線で直結されており、バイアス回路が完全に排除されています。通常のトランジスタなら約1.4V（0.7V×2）の空白ですが、採用されている低(Vce)トランジスタ（PBSS4350X）のデータシートを引くと、&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;Ic=1A動作時のベース・エミッタオン電圧（Vbeon）は実に「1.01V（最大1.1〜1.2V）」に達します&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;。つまり、上下合わせて&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;「2V以上」という絶望的に巨大な空白（信号消滅領域）が存在する、正真正銘の「極悪C級クロスオーバー歪み回路」&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;であることが物理的に確定しました。「オペアンプの出力で2Vの空白を高速で飛び越えれば歪まない」などというのは回路の全盲です。2V超の壁に激突した瞬間、電流制限抵抗なしのオペアンプ出力は一瞬で大電流ショート状態（過電流・位相崩壊）に陥り、泥沼の異常発振を垂れ流しながら、最悪な歪みスパイクを出力に直行させます&lt;!--TgQPHd|||[]--&gt;。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;/li&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIJhAJ&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;オペアンプ（U1A）の「出力ショートバグ」：&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;&lt;br style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-root=&quot;ep&quot; data-sfc-pl=&quot;|||[]&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot; /&gt;高性能オペアンプ「OPA1602A」の出力が、電流制限抵抗すら挟まずに後段トランジスタのベースへダイレクトに直結されています。音楽信号が動いた瞬間、トランジスタのベース・エミッタ間ダイオードへ猛烈な電流が流れ込み、オペアンプの出力は実質的(瞬間の20ns)&lt;/span&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;にショート状態（過電流）になります&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; aria-owns=&quot;action-menu-parent-container&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;。これがた&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;「異常発熱」「低域での異常発振」「電源サグ」に連動します&lt;/strong&gt;。&lt;/span&gt;&lt;/span&gt;&lt;/li&gt;
&lt;/ol&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; aria-owns=&quot;action-menu-parent-container&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;音の半分はきえますね&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/30/saund_ng_444.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1022,height=507,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60287288&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Saund_ng_444&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/30/saund_ng_444.png&quot; alt=&quot;Saund_ng_444&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;div class=&quot;otQkpb&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 20px; font-weight: bold; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; role=&quot;heading&quot; aria-level=&quot;3&quot; data-animation-nesting=&quot;&quot; data-sfc-cp=&quot;&quot; data-wiz-attrbind=&quot;aria-level=m7gnBd_4a/fLk2Md&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 20px; font-weight: 700; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;■ 4. 公式提示「-160dBV」という虚構と測定の嘘&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIKRAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;公式側は身白を証明する目的で、実際のヘッドホン（CS97G）を接続した「実負荷での参考測定例」を提示し、驚異的なノイズフロアとして「マイナス160dBV」という数値を誇示しました。しかし、この「ー160dBV」こそが、測定論争における&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;設計側の致命的な無知を決定づけたトドメの数字（虚構）&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;です。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;ol class=&quot;T9WCjf qkgVBf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIKhAB&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;熱雑音の物理的限界（常温で-131dBV）の無視：&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;&lt;br style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-root=&quot;ep&quot; data-sfc-pl=&quot;|||[]&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot; /&gt;室温（25℃）において、オーディオ帯域（20Hz〜20kHz）で抵抗が持つ「熱雑音」の物理的な限界値は、50Ωの抵抗単体であっても約－131dBVです。多数の半導体や抵抗が動作するアンプ回路で「ー160dBV」を達成することは、熱力学第二法則を覆さない限り100%不可能です。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/li&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIKhAE&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;FFTの「プロセスゲイン」による視覚的トリック：&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;&lt;br style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-root=&quot;ep&quot; data-sfc-pl=&quot;|||[]&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot; /&gt;WaveSpectra等の画面でノイズの線がー160dBVまで下がっているのは、FFTのサンプル数を増やしたことで「1Hzあたりのノイズ密度（V/√Hz）」が見かけ上細分化されただけに過ぎません。アンプが実際に垂れ流している全体のノイズ電圧が減ったわけではないのに、この測定器の仕様（見かけのマジック）を「アンプの性能」だと勘違いして提示している時点で、測定器の基本すら理解していない証拠です。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/li&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIKhAH&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;測定器（Audio Precision）の限界すら超える矛盾：&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;&lt;br style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-root=&quot;ep&quot; data-sfc-pl=&quot;|||[]&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot; /&gt;1000万円クラスの超高精度オーディオアナライザであっても、測定限界はせいぜいー130〜ー140dBV付近です。一般家庭のPC環境とサウンドカードによる測定でー160dBVを主張するのは、超伝導を個人宅で実現したと主張してる状態です。キャリブレーション（基準電位設定）の致命的なミスを自ら晒している喜劇と言えます。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/li&gt;
&lt;!--TgQPHd|||[]--&gt;&lt;/ol&gt;
&lt;div class=&quot;yhAwj&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sfc-inited=&quot;2&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;otQkpb&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 20px; font-weight: bold; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; role=&quot;heading&quot; aria-level=&quot;3&quot; data-animation-nesting=&quot;&quot; data-sfc-cp=&quot;&quot; data-wiz-attrbind=&quot;aria-level=m7gnBd_5c/fLk2Md&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 20px; font-weight: 700; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;■ 5. 実負荷（ヘッドホンCS97G）接続時に露呈した不穏な挙動&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAILBAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;さらに、公式が提示した実負荷測定データそのものが、アンプとして非常に不穏な動作状態であることを雄弁に物語っています。&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;ul class=&quot;KsbFXc U6u95&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-ved=&quot;2ahUKEwjoxOXJue2WAxU7j68BHR46O_YQ-7AUegYIAAgtEAA&quot; data-hveid=&quot;CAAILRAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAILRAC&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; aria-owns=&quot;action-menu-parent-container&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;低域発振・寄生振動の可視化：&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;&lt;br style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-root=&quot;ep&quot; data-sfc-pl=&quot;|||[]&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot; /&gt;純抵抗ではなく、実際のヘッドホン（CS97G）というボイスコイル（インダクタンス・容量成分）がぶら下がった瞬間、画面上の低域や高域のノイズフロアが不自然に波打ち、高調波が乱立する様子が視覚的に暴かれています。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;
&lt;div style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: -1px; text-decoration: none; border-bottom: 0px #16171a;&quot; tabindex=&quot;0&quot; data-os-fs=&quot;&quot; aria-hidden=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: -1px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: -1px; text-decoration: none; border-bottom: 0px #16171a;&quot; tabindex=&quot;0&quot; data-os-fs=&quot;&quot; aria-hidden=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: -1px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;span style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/li&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAILRAD&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;「awake（起動）の遅延」が歪みとして牙を剥く：&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;&lt;br style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-root=&quot;ep&quot; data-sfc-pl=&quot;|||[]&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot; /&gt;データシートのVbeon=1.01Vという重い壁が示す通り、実負荷が電流を要求した瞬間、無バイアス回路は追従できず、波形の中点（クロスオーバー領域）で激しく突っ掛かります。それがFFT画面上に大量の「奇数次高調波ノイズ」の針林となって現れており、まともにドライブできていないエビデンス（証拠）を公式自ら提出する結果となっています。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;/li&gt;
&lt;!--TgQPHd|||[]--&gt;&lt;/ul&gt;
&lt;div class=&quot;yhAwj&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sfc-inited=&quot;2&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;otQkpb&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 20px; font-weight: bold; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; role=&quot;heading&quot; aria-level=&quot;3&quot; data-animation-nesting=&quot;&quot; data-sfc-cp=&quot;&quot; data-wiz-attrbind=&quot;aria-level=m7gnBd_67/fLk2Md&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 20px; font-weight: 700; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;■ 6. まとめ：オカルトオーディオの終焉&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIMRAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;しかし、しんちゃん氏が指摘する通り、データシート（半導体の物理原則）を覆すほどの明確なエビデンスを示せない以上、&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;設計側の技術的な負けは確定&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;しています。&lt;br style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-root=&quot;ep&quot; data-sfc-pl=&quot;|||[]&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot; /&gt;私たちが「ピュアな音の躍動感」として掴まされていたものの正体は、1960年代の古典的NFB回路をデチューンし、データシート上2Vを超えるデッドバンドによる位相遅延と、インピーダンス非対称による非線形な大歪み、そしてオペアンプを出力ショートさせて無理やり暴れ狂わせた「ただの設計事故（バグ）」だったのです。&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIMRAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIMRAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/14/43532.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1016,height=720,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60275340&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;43532&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/14/43532.png&quot; alt=&quot;43532&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/14/aso.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=775,height=409,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60275349&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Aso&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/14/aso.png&quot; alt=&quot;Aso&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/14/hpa.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=831,height=495,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60275341&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Hpa&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/14/hpa.png&quot; alt=&quot;Hpa&quot; /&gt;&lt;/a&gt;&lt;/p&gt;</content:encoded>



<dc:creator>takinx</dc:creator>
<dc:date>2026-09-30T15:37:00+09:00</dc:date>
</item>
<item rdf:about="http://www.radiokits.jp/radio_kit_/2026/09/sr-4406.html">
<title>スルーレート（SR）と空気振動復調限界のまとめ</title>
<link>http://www.radiokits.jp/radio_kit_/2026/09/sr-4406.html</link>
<description>地球上での物性限界がある。電気信号から空気振動への変換器の限界について明示してお...</description>
<content:encoded>&lt;p&gt;地球上での物性限界がある。電気信号から空気振動への変換器の限界について明示しておく。&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/08/26/sr.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=710,height=583,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60261211&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Sr&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/08/26/sr.png&quot; alt=&quot;Sr&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;空気振動として復元できないエネルギーは熱になり、地球温暖化に貢献しておる、　これ事実。&lt;/p&gt;</content:encoded>



<dc:creator>takinx</dc:creator>
<dc:date>2026-09-30T11:34:00+09:00</dc:date>
</item>
<item rdf:about="http://www.radiokits.jp/radio_kit_/2026/09/audio-amp-e4e0.html">
<title>「火事の原因」になる「audio amp 基板のご紹介」過電流断をしないアンプ基板「境界調律」</title>
<link>http://www.radiokits.jp/radio_kit_/2026/09/audio-amp-e4e0.html</link>
<description>[技術的な定義の矛盾を整理し、電子工作ファンや消費者が誤った認識で商品を選ばない...</description>
<content:encoded>&lt;p&gt;&lt;span style=&quot;font-size: small;&quot;&gt;[技術的な定義の矛盾を整理し、電子工作ファンや消費者が誤った認識で商品を選ばないための注意喚起を目的としています」&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;font-size: small;&quot;&gt;&lt;span style=&quot;background-color: #ffff99;&quot;&gt;電気物理を無視した回路基板が製品になりSHOP流通している様は、日本のものつくりが滅んだ遠因のひとつです。&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;*****************************************************&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/20/innocent_01.jpg&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=420,height=290,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60280383&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Innocent_01&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/20/innocent_01.jpg&quot; alt=&quot;Innocent_01&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;font-size: large;&quot;&gt;&lt;strong&gt;&lt;span style=&quot;background-color: #ffff99;&quot;&gt;過電流断をしない「境界調律」付属アンプ基板のご紹介&lt;/span&gt;&lt;/strong&gt;&lt;/span&gt;。&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/20/kairo.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=922,height=642,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60280384&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Kairo&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/20/kairo.png&quot; alt=&quot;Kairo&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;**********************************&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;font-size: medium;&quot;&gt;&lt;span style=&quot;color: #ff0000;&quot;&gt;電源断機能がゼロ&lt;/span&gt;。 ポリヒューズレス。和泉のNRPでもいれりゃいいのに。&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;電源投入時のラッシュ電流がUSB規格の3倍近くながれる。これに親機が耐えれる論理根拠はない。&lt;/p&gt;
&lt;p&gt;35ミリ秒程度は通電ラッシュ時にながれるので、サーキットプロテクター（10mS)が楽にトリップする時間がある。&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/20/usb.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1200,height=552,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60280381&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Usb&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/20/usb.png&quot; alt=&quot;Usb&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;**************************************&lt;/p&gt;
&lt;p&gt;icが120度になれば動作停止とdata sheetで公開中.&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/20/apo57_3.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=814,height=412,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60280382&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Apo57_3&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/20/apo57_3.png&quot; alt=&quot;Apo57_3&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;120度だとポリカでもゆっくりとまるまる。　PCケースは堪えても105度。&lt;/p&gt;
&lt;p&gt;******************************************************&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;電源断機能がゼロ。 ポリヒューズレスな基板です。&lt;/p&gt;
&lt;p&gt;「ポリヒューズ入りUSBケーブル」で接続お願いします。火災保険確認してください。&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;background-color: #f5f584; color: #000000;&quot;&gt;&lt;span style=&quot;color: #000000;&quot;&gt;設計者様から「回路を詳しく見ろ」とのご指摘をいただいたおかげで、この「電気回路を理解していない設計、data sheetを読まない設計」の全貌と、購入者の資産（PC等）を物理的に脅かす重大なリスクを事前に察知し、こうして注意喚起を行うことができました。その点においては、設計者様に誠に感謝申し上げます。&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;color: #000000;&quot;&gt;&lt;span style=&quot;color: #000000;&quot;&gt;********************************************&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;　火事になる基板を400枚ちかく販売したらしい。&lt;/p&gt;
&lt;p&gt;diy AUDIO 分野では　神話　（ 反科学 ）が中心だと今回判明した。&lt;/p&gt;
&lt;p&gt;「　Innocent Key　教 」「　takazin 教　」　ほかに何教があるか？&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/21/image2.jpg&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1010,height=536,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60280666&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Image2&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/21/image2.jpg&quot; alt=&quot;Image2&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;立下りだけズレるので　バイアスとゲインに問題ある。しかし本人は高評価。&lt;/p&gt;
&lt;p&gt;これだけズレあると「聴感で違和感を感じるのが大半」。&lt;/p&gt;
&lt;p&gt;しかし支援者はマンセーしておる。　闇　は深い　。&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;</content:encoded>


<dc:subject>「　境界調律　」「海苔音出基板」</dc:subject>

<dc:creator>takinx</dc:creator>
<dc:date>2026-09-30T11:13:00+09:00</dc:date>
</item>
<item rdf:about="http://www.radiokits.jp/radio_kit_/2026/09/audio-amp-diy-3428.html">
<title>audio amp (ヘッドホンアンプ）のdiy 指針</title>
<link>http://www.radiokits.jp/radio_kit_/2026/09/audio-amp-diy-3428.html</link>
<description>audio amp (ヘッドホンアンプ）のdiy 指針ポイントを幾つかあげる 1...</description>
<content:encoded>&lt;p&gt;audio amp (ヘッドホンアンプ）のdiy 指針ポイントを幾つかあげる&lt;/p&gt;
&lt;p&gt;1:エンベローブ成分を使うか？　捨てるか？&lt;/p&gt;
&lt;p&gt;2:情報密度の薄いのが好みか？&lt;/p&gt;
&lt;p&gt;3;入力信号レンジ（リニア動作範囲）は何dBほしいか？&lt;/p&gt;
&lt;p&gt;4:エモーシャルサウンドは好きか？　きらいか？&lt;/p&gt;
&lt;p&gt;5：過圧縮された音はすきか？&lt;/p&gt;
&lt;p&gt;＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊&lt;/p&gt;
&lt;p&gt;これをAIに問うと、　面白いよ。&lt;/p&gt;
&lt;p&gt;よい音をききたければ差動入力はやめたほうがいい。片側負荷ならかなりマシだ。&lt;/p&gt;
&lt;p&gt;OP AMPもエンベロープ成分消し去るの巧いから、ヘボイ？？OP AMPが音良いこともある。　不自然に圧縮された音が氾濫しておるので難聴にならぬことを希る。&lt;/p&gt;
&lt;p&gt;信号強さ90dBを有効につかう音源をみつけることからスタートだと思うよ。&lt;/p&gt;
&lt;div class=&quot;Article__content&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div class=&quot;Article__content&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div class=&quot;Article__content&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div class=&quot;Article__content&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;p&gt;&lt;/p&gt;
&lt;div class=&quot;otQkpb&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 20px; font-weight: bold; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; role=&quot;heading&quot; aria-level=&quot;3&quot; data-animation-nesting=&quot;&quot; data-sfc-cp=&quot;&quot; data-wiz-attrbind=&quot;aria-level=rXq9Fb_75/fLk2Md&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 20px; font-weight: 700; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;1. 「ヘボいオペアンプが音が良い」の正体&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIDBAA&quot; data-processed=&quot;true&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; aria-owns=&quot;action-menu-parent-container&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;スペック上の歪み率やスルーレートが低い（＝ヘボい）オペアンプ（例えば往年の4558やTL072など）が、最新の超低歪み・超高速オペアンプよりエモーショナルで心地よく聴こえる現象は、まさに&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;「エンベロープ成分の残存」&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;
&lt;div style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: -1px; text-decoration: none; border-bottom: 0px #16171a;&quot; tabindex=&quot;0&quot; data-os-fs=&quot;&quot; aria-hidden=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: -1px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: -1px; text-decoration: none; border-bottom: 0px #16171a;&quot; tabindex=&quot;0&quot; data-os-fs=&quot;&quot; aria-hidden=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: -1px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&amp;nbsp;&lt;/div&gt;
と&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;「情報密度の引き算」&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;が関係しています。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;ul class=&quot;KsbFXc U6u95&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-ved=&quot;2ahUKEwj77aPylv-WAxUIe_UHHVaVGIMQ-7AUegYIAAgNEAA&quot; data-hveid=&quot;CAAIDRAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIDRAB&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;エンベロープ（包絡線）を殺さない緩さ&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;:&lt;br style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-root=&quot;ep&quot; data-sfc-pl=&quot;|||[]&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot; /&gt;高スルーレートで帯域が広すぎるオペアンプは、微小な高周波ノイズまで生真面目に増幅し、かつ深いNFBによって音楽のダイナミックな「うねり（エンベロープ）」を過渡的に平坦化（コンプレッション）してしまいがちです。スルーレートが適度に低いアンプは、波形の立ち上がりがほんのり丸くなることで、逆に&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;人間の耳に心地よい「アタックのタメ」や「音楽の塊感」&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;として残ります。&lt;!--TgQPHd|||[]--&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/li&gt;
&lt;!--TgQPHd|||[]--&gt;&lt;/ul&gt;
&lt;div class=&quot;yhAwj&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sfc-inited=&quot;2&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;otQkpb&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 20px; font-weight: bold; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; role=&quot;heading&quot; aria-level=&quot;3&quot; data-animation-nesting=&quot;&quot; data-sfc-cp=&quot;&quot; data-wiz-attrbind=&quot;aria-level=rXq9Fb_82/fLk2Md&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 20px; font-weight: 700; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;2. 「差動入力はやめたほうがいい」という真理&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIDxAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;差動入力（ロングテールペア）は、同相ノイズをキャンセルし、DCから安定して増幅できるため「工業製品」としては完璧です。しかし、音楽を聴く上では大きな罠があります。&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;ul class=&quot;KsbFXc U6u95&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-ved=&quot;2ahUKEwj77aPylv-WAxUIe_UHHVaVGIMQ-7AUegYIAAgQEAA&quot; data-hveid=&quot;CAAIEBAA&quot; data-processed=&quot;true&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIEBAB&quot; data-sae=&quot;&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;ダイナミックな非線形歪み&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;:&lt;br style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-root=&quot;ep&quot; data-sfc-pl=&quot;|||[]&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot; /&gt;素のリニア動作範囲が50dBと狭いため、入力信号の激しい変化に対して常にギリギリの動作を強いられます。それをNFBで補正しようとすると、時間軸のズレ（過渡歪み）が発生し、音の生命感が失われます。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/li&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIEBAE&quot; data-processed=&quot;true&quot; data-sae=&quot;&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;シングル構成・無帰還の復権&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;:&lt;br style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-root=&quot;ep&quot; data-sfc-pl=&quot;|||[]&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot; /&gt;差動をやめ、2SK30や2SK170などのFET、あるいは三極管の&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;シングル（エミッタ/ソース/カソード接地）の1段増幅＋バッファ&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;のような構成にすると、素子の持つ2次高調波歪み（音楽的な艶）がそのまま活きます。リニア動作範囲も、素子のバイアスを深く取ることで「生のまま」広く使えます。これこそが、エンベロープ成分を100%残し、エモーショナルなサウンドを生み出す最強の処方箋です。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;/li&gt;
&lt;/ul&gt;
&lt;p&gt;&lt;/p&gt;
&lt;div class=&quot;Article__content&quot;&gt;&amp;nbsp;&lt;/div&gt;
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&lt;div class=&quot;Article__content&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;p&gt;PN接合を通過する回数が多いと音が色つく（鮮度が落ちる）ので、通過回数は少ないのがいい。&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;</content:encoded>



<dc:creator>takinx</dc:creator>
<dc:date>2026-09-29T16:47:00+09:00</dc:date>
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<item rdf:about="http://www.radiokits.jp/radio_kit_/2026/09/z5k6001-b956.html">
<title>アンプの入力Z=5Kオームと仮定して、600オーム信号源とアンプ、1Ｍオームオシロを並列にした測定をおこなった場合にどうなるか？？</title>
<link>http://www.radiokits.jp/radio_kit_/2026/09/z5k6001-b956.html</link>
<description>項目 ① 発振器の画面表示 （600Ω整合・理想状態） ② オシロの画面表示 （...</description>
<content:encoded>&lt;table style=&quot;border-collapse: collapse; width: 100%; font-family: sans-serif; font-size: 14px; line-height: 1.5; border: 3px solid #333333;&quot; border=&quot;2&quot;&gt;
&lt;thead&gt;
&lt;tr style=&quot;background-color: #333333;&quot;&gt;
&lt;th style=&quot;border: 2px solid #333333; padding: 12px; text-align: center; width: 25%; color: #ffffff; font-weight: bold;&quot;&gt;項目&lt;/th&gt;
&lt;th style=&quot;border: 2px solid #333333; padding: 12px; text-align: center; width: 30%; color: #ffffff; font-weight: bold;&quot;&gt;① 発振器の画面表示&lt;br /&gt;&lt;span style=&quot;font-size: 11px; color: #cccccc; font-weight: normal;&quot;&gt;（600Ω整合・理想状態）&lt;/span&gt;&lt;/th&gt;
&lt;th style=&quot;border: 2px solid #333333; padding: 12px; text-align: center; width: 25%; color: #ffffff; font-weight: bold;&quot;&gt;② オシロの画面表示&lt;br /&gt;&lt;span style=&quot;font-size: 11px; color: #cccccc; font-weight: normal;&quot;&gt;（1MΩ ∥ 5kΩ 接続時の現実）&lt;/span&gt;&lt;/th&gt;
&lt;th style=&quot;border: 2px solid #333333; padding: 12px; text-align: center; width: 20%; color: #ffffff; font-weight: bold;&quot;&gt;インピーダンス・ミスマッチの実態&lt;/th&gt;
&lt;/tr&gt;
&lt;/thead&gt;
&lt;tbody&gt;
&lt;tr&gt;
&lt;td style=&quot;border: 2px solid #333333; padding: 10px; font-weight: bold; background-color: #f9f9f9; text-align: center;&quot;&gt;外部の合成負荷抵抗&lt;/td&gt;
&lt;td style=&quot;border: 2px solid #333333; padding: 10px; text-align: center; background-color: #ffffff;&quot;&gt;600 Ω&lt;/td&gt;
&lt;td style=&quot;border: 2px solid #333333; padding: 10px; text-align: center; background-color: #fee9e9; font-weight: bold; color: #cc0000;&quot;&gt;約 4,975 Ω&lt;/td&gt;
&lt;td style=&quot;border: 2px solid #333333; padding: 10px; color: #cc0000; background-color: #fee9e9; font-weight: bold;&quot;&gt;【アンバランス】&lt;br /&gt;負荷抵抗が理想から激増&lt;/td&gt;
&lt;/tr&gt;
&lt;tr style=&quot;background-color: #fff0f0;&quot;&gt;
&lt;td style=&quot;border: 2px solid #333333; padding: 10px; font-weight: bold; text-align: center; background-color: #fddddd;&quot;&gt;アンプへの入力電圧&lt;/td&gt;
&lt;td style=&quot;border: 2px solid #333333; padding: 10px; color: #cc0000; font-weight: bold; text-align: center;&quot;&gt;5.00 V &lt;span style=&quot;font-size: 11px; color: #666666; font-weight: normal;&quot;&gt;&lt;br /&gt;（定格出力）&lt;/span&gt;&lt;/td&gt;
&lt;td style=&quot;border: 2px solid #333333; padding: 10px; color: #008800; font-weight: bold; text-align: center; font-size: 15px;&quot;&gt;8.92 V&lt;/td&gt;
&lt;td style=&quot;border: 2px solid #333333; padding: 10px; color: #cc0000; background-color: #fee9e9;&quot;&gt;【表面上の数値】&lt;br /&gt;分圧比の崩れで異常に高く見える&lt;/td&gt;
&lt;/tr&gt;
&lt;tr style=&quot;background-color: #f0f4ff;&quot;&gt;
&lt;td style=&quot;border: 2px solid #333333; padding: 10px; font-weight: bold; text-align: center; background-color: #dde6ff;&quot;&gt;アンプへの伝送パワー&lt;br /&gt;&lt;span style=&quot;font-size: 11px; color: #555555; font-weight: normal;&quot;&gt;（エネルギーの実効値）&lt;/span&gt;&lt;/td&gt;
&lt;td style=&quot;border: 2px solid #333333; padding: 10px; text-align: center; font-weight: bold; color: #0055cc;&quot;&gt;41.67 mW&lt;br /&gt;&lt;span style=&quot;font-size: 11px; color: #666666; font-weight: normal;&quot;&gt;（最大電力伝送：+16.2dBm）&lt;/span&gt;&lt;/td&gt;
&lt;td style=&quot;border: 2px solid #333333; padding: 10px; color: #d9534f; font-weight: bold; text-align: center; font-size: 15px; background-color: #fddddd;&quot;&gt;15.94 mW&lt;/td&gt;
&lt;td style=&quot;border: 2px solid #333333; padding: 10px; color: #cc0000; font-weight: bold; background-color: #fee9e9;&quot;&gt;【致命的な低下】&lt;br /&gt;ミスマッチにより本来の&lt;span style=&quot;font-size: 15px;&quot;&gt;38%&lt;/span&gt;まで弱体化&lt;/td&gt;
&lt;/tr&gt;
&lt;tr style=&quot;background-color: #f0f4ff;&quot;&gt;
&lt;td style=&quot;border: 2px solid #333333; padding: 10px; font-weight: bold; text-align: center; background-color: #dde6ff;&quot;&gt;アンプに流れる信号電流&lt;/td&gt;
&lt;td style=&quot;border: 2px solid #333333; padding: 10px; text-align: center;&quot;&gt;8.33 mA&lt;/td&gt;
&lt;td style=&quot;border: 2px solid #333333; padding: 10px; color: #cc0000; font-weight: bold; text-align: center;&quot;&gt;1.78 mA&lt;/td&gt;
&lt;td style=&quot;border: 2px solid #333333; padding: 10px; color: #cc0000; background-color: #fee9e9;&quot;&gt;電流の送り出しを阻害され激減&lt;/td&gt;
&lt;/tr&gt;
&lt;tr style=&quot;background-color: #ffffe0;&quot;&gt;
&lt;td style=&quot;border: 2px solid #333333; padding: 10px; font-weight: bold; color: #b36b00; background-color: #fff2cc; text-align: center;&quot;&gt;★ 他人が陥る勘違い&lt;/td&gt;
&lt;td style=&quot;border: 2px solid #333333; padding: 10px; color: #555555; font-size: 12px;&quot; colspan=&quot;2&quot;&gt;「オシロの電圧が8.92Vもあるから、信号源のパワーは十分外に出てきている！」と思い込む。&lt;/td&gt;
&lt;td style=&quot;border: 2px solid #333333; padding: 10px; color: #cc0000; font-weight: bold; background-color: #fff9e6;&quot;&gt;【大誤解】&lt;br /&gt;&lt;span style=&quot;font-size: 12px; color: #333333; font-weight: normal;&quot;&gt;ミスマッチのせいで、外に出てきている実態（パワー）は限界以下に弱り切っている。&lt;/span&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;/tbody&gt;
&lt;/table&gt;
&lt;p&gt;＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊&lt;/p&gt;
&lt;table style=&quot;border-collapse: collapse; width: 100%; font-family: sans-serif; font-size: 14px; line-height: 1.5; border: 3px solid #333333;&quot; border=&quot;2&quot;&gt;
&lt;thead&gt;
&lt;tr style=&quot;background-color: #333333;&quot;&gt;
&lt;th style=&quot;border: 2px solid #333333; padding: 12px; text-align: center; width: 25%; color: #ffffff; font-weight: bold;&quot;&gt;測定ポイント&lt;/th&gt;
&lt;th style=&quot;border: 2px solid #333333; padding: 12px; text-align: center; width: 30%; color: #ffffff; font-weight: bold;&quot;&gt;理想の測定状態&lt;br /&gt;&lt;span style=&quot;font-size: 11px; color: #cccccc; font-weight: normal;&quot;&gt;（入力600Ω終端・整合時）&lt;/span&gt;&lt;/th&gt;
&lt;th style=&quot;border: 2px solid #333333; padding: 12px; text-align: center; width: 25%; color: #ffffff; font-weight: bold;&quot;&gt;今回の測定現実&lt;br /&gt;&lt;span style=&quot;font-size: 11px; color: #cccccc; font-weight: normal;&quot;&gt;（1MΩオシロ直読・不整合時）&lt;/span&gt;&lt;/th&gt;
&lt;th style=&quot;border: 2px solid #333333; padding: 12px; text-align: center; width: 20%; color: #ffffff; font-weight: bold;&quot;&gt;測定エラーの実態&lt;/th&gt;
&lt;/tr&gt;
&lt;/thead&gt;
&lt;tbody&gt;
&lt;tr&gt;
&lt;td style=&quot;border: 2px solid #333333; padding: 10px; font-weight: bold; background-color: #f9f9f9; text-align: center;&quot;&gt;アンプ入力電圧&lt;br /&gt;&lt;span style=&quot;font-size: 11px; color: #666666; font-weight: normal;&quot;&gt;（発振器の出口）&lt;/span&gt;&lt;/td&gt;
&lt;td style=&quot;border: 2px solid #333333; padding: 10px; text-align: center; background-color: #ffffff;&quot;&gt;5.00 V&lt;/td&gt;
&lt;td style=&quot;border: 2px solid #333333; padding: 10px; text-align: center; background-color: #fee9e9; font-weight: bold; color: #cc0000;&quot;&gt;8.92 V&lt;/td&gt;
&lt;td style=&quot;border: 2px solid #333333; padding: 10px; color: #cc0000; background-color: #fee9e9; font-weight: bold;&quot;&gt;ミスマッチで入力電圧が見かけ上アップ&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style=&quot;border: 2px solid #333333; padding: 10px; font-weight: bold; background-color: #f9f9f9; text-align: center;&quot;&gt;アンプ出力電圧&lt;br /&gt;&lt;span style=&quot;font-size: 11px; color: #666666; font-weight: normal;&quot;&gt;（8.2Ω負荷の出口）&lt;/span&gt;&lt;/td&gt;
&lt;td style=&quot;border: 2px solid #333333; padding: 10px; text-align: center; background-color: #ffffff;&quot;&gt;10.00 V&lt;br /&gt;&lt;span style=&quot;font-size: 11px; color: #666666; font-weight: normal;&quot;&gt;（入力5V×2倍）&lt;/span&gt;&lt;/td&gt;
&lt;td style=&quot;border: 2px solid #333333; padding: 10px; text-align: center; background-color: #ffffff;&quot;&gt;10.00 V&lt;br /&gt;&lt;span style=&quot;font-size: 11px; color: #bb3333; font-weight: bold;&quot;&gt;（※8.92Vを増幅した訳ではない）&lt;/span&gt;&lt;/td&gt;
&lt;td style=&quot;border: 2px solid #333333; padding: 10px; color: #666666; background-color: #ffffff;&quot;&gt;アンプの中身（実態のパワー）は5V分しか届いていないため、出力は10Vのまま&lt;/td&gt;
&lt;/tr&gt;
&lt;tr style=&quot;background-color: #fff0f0;&quot;&gt;
&lt;td style=&quot;border: 2px solid #333333; padding: 10px; font-weight: bold; text-align: center; background-color: #fddddd;&quot;&gt;オシロから計算した&lt;br /&gt;見かけのゲイン&lt;/td&gt;
&lt;td style=&quot;border: 2px solid #333333; padding: 10px; color: #008800; font-weight: bold; text-align: center; font-size: 15px;&quot;&gt;2.00 倍&lt;br /&gt;&lt;span style=&quot;font-size: 11px; font-weight: normal;&quot;&gt;（正確な設計値）&lt;/span&gt;&lt;/td&gt;
&lt;td style=&quot;border: 2px solid #333333; padding: 10px; color: #cc0000; font-weight: bold; text-align: center; font-size: 15px; background-color: #fddddd;&quot;&gt;1.12 倍&lt;br /&gt;&lt;span style=&quot;font-size: 11px; font-weight: normal;&quot;&gt;（10V ÷ 8.92V）&lt;/span&gt;&lt;/td&gt;
&lt;td style=&quot;border: 2px solid #333333; padding: 10px; color: #cc0000; font-weight: bold; background-color: #fee9e9;&quot;&gt;【測定大失敗】&lt;br /&gt;アンプの性能が本来より&lt;span style=&quot;font-size: 15px;&quot;&gt;大幅に低く&lt;/span&gt;評価される&lt;/td&gt;
&lt;/tr&gt;
&lt;tr style=&quot;background-color: #ffffe0;&quot;&gt;
&lt;td style=&quot;border: 2px solid #333333; padding: 10px; font-weight: bold; color: #b36b00; background-color: #fff2cc; text-align: center;&quot;&gt;★ 他人が陥る勘違い&lt;/td&gt;
&lt;td style=&quot;border: 2px solid #333333; padding: 10px; color: #555555; font-size: 12px;&quot; colspan=&quot;2&quot;&gt;「オシロの画面に入力8.92V、出力10.0Vって出てるから、このアンプは全然増幅してくれない（不良品だ！）」と思い込む。&lt;/td&gt;
&lt;td style=&quot;border: 2px solid #333333; padding: 10px; color: #cc0000; font-weight: bold; background-color: #fff9e6;&quot;&gt;【大誤解】&lt;br /&gt;&lt;span style=&quot;font-size: 12px; color: #333333; font-weight: normal;&quot;&gt;アンプは正常。測定器の繋ぎ方のせいで計算の母数（入力電圧）がバグっているだけ。&lt;/span&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;/tbody&gt;
&lt;/table&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;基本的なことなので大人は知ってるはず。おこちゃまなら、知らない可能性はある&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;*******************************&lt;/p&gt;
&lt;table style=&quot;border-collapse: collapse; width: 100%; font-family: sans-serif; font-size: 14px; line-height: 1.5; border: 3px solid #333333;&quot; border=&quot;2&quot;&gt;
&lt;thead&gt;
&lt;tr style=&quot;background-color: #333333;&quot;&gt;
&lt;th style=&quot;border: 2px solid #333333; padding: 12px; text-align: center; width: 20%; color: #ffffff; font-weight: bold;&quot;&gt;物理的な現象&lt;/th&gt;
&lt;th style=&quot;border: 2px solid #333333; padding: 12px; text-align: center; width: 30%; color: #ffffff; font-weight: bold;&quot;&gt;線形回路（オームの法則）の予測&lt;/th&gt;
&lt;th style=&quot;border: 2px solid #333333; padding: 12px; text-align: center; width: 30%; color: #ffffff; font-weight: bold;&quot;&gt;SCLC支配時の真実（ミクロな物理）&lt;/th&gt;
&lt;th style=&quot;border: 2px solid #333333; padding: 12px; text-align: center; width: 20%; color: #ffffff; font-weight: bold;&quot;&gt;真値のズレ特性&lt;/th&gt;
&lt;/tr&gt;
&lt;/thead&gt;
&lt;tbody&gt;
&lt;tr&gt;
&lt;td style=&quot;border: 2px solid #333333; padding: 10px; font-weight: bold; background-color: #f9f9f9; text-align: center;&quot;&gt;入力インピーダンス&lt;br /&gt;（動的Z）&lt;/td&gt;
&lt;td style=&quot;border: 2px solid #333333; padding: 10px; text-align: center; background-color: #ffffff;&quot;&gt;電圧に関係なくいつでも&lt;br /&gt;&lt;strong&gt;「5 kΩ」&lt;/strong&gt;で一定&lt;/td&gt;
&lt;td style=&quot;border: 2px solid #333333; padding: 10px; text-align: center; background-color: #fee9e9; color: #cc0000; font-weight: bold;&quot;&gt;電圧の2乗（V²）で電流が増えるため、電圧が上がると&lt;strong&gt;インピーダンスが急激に低下する&lt;/strong&gt;&lt;/td&gt;
&lt;td style=&quot;border: 2px solid #333333; padding: 10px; color: #cc0000; background-color: #fee9e9; font-weight: bold;&quot;&gt;【非線形な変動】&lt;br /&gt;「5kΩ」という前提自体が崩壊&lt;/td&gt;
&lt;/tr&gt;
&lt;tr style=&quot;background-color: #fff0f0;&quot;&gt;
&lt;td style=&quot;border: 2px solid #333333; padding: 10px; font-weight: bold; text-align: center; background-color: #fddddd;&quot;&gt;現場の実際の電位&lt;br /&gt;（真の入力電圧）&lt;/td&gt;
&lt;td style=&quot;border: 2px solid #333333; padding: 10px; text-align: center;&quot;&gt;5kΩの分圧比のまま&lt;br /&gt;&lt;strong&gt;8.92 V&lt;/strong&gt; で安定&lt;/td&gt;
&lt;td style=&quot;border: 2px solid #333333; padding: 10px; color: #cc0000; font-weight: bold; text-align: center; font-size: 15px;&quot;&gt;注入された空間電荷が作る電場（ポアソン方程式）により、電位分布が激しく歪み、&lt;strong&gt;8.92Vを維持できなくなる&lt;/strong&gt;&lt;/td&gt;
&lt;td style=&quot;border: 2px solid #333333; padding: 10px; color: #cc0000; font-weight: bold; background-color: #fee9e9;&quot;&gt;オシロスコープの直流的な計算値を遥かに超えてズレる&lt;/td&gt;
&lt;/tr&gt;
&lt;tr style=&quot;background-color: #f0f4ff;&quot;&gt;
&lt;td style=&quot;border: 2px solid #333333; padding: 10px; font-weight: bold; text-align: center; background-color: #dde6ff;&quot;&gt;アンプゲインの評価&lt;/td&gt;
&lt;td style=&quot;border: 2px solid #333333; padding: 10px; text-align: center;&quot;&gt;単純に「10V ÷ 8.92V」で&lt;br /&gt;1.12倍と計算できる&lt;/td&gt;
&lt;td style=&quot;border: 2px solid #333333; padding: 10px; color: #d9534f; font-weight: bold; text-align: center; font-size: 14px; background-color: #fddddd;&quot;&gt;信号の振幅（電圧の大小）によって入力Zがブレまくるため、&lt;strong&gt;入力電圧の大きさ次第でゲインの測定結果が毎回変わる&lt;/strong&gt;&lt;/td&gt;
&lt;td style=&quot;border: 2px solid #333333; padding: 10px; color: #cc0000; font-weight: bold; background-color: #fee9e9;&quot;&gt;【測定の無効化】&lt;br /&gt;再現性のないデタラメな数値になる&lt;/td&gt;
&lt;/tr&gt;
&lt;tr style=&quot;background-color: #ffffe0;&quot;&gt;
&lt;td style=&quot;border: 2px solid #333333; padding: 10px; font-weight: bold; color: #b36b00; background-color: #fff2cc; text-align: center;&quot;&gt;★ 固体物理の視点&lt;/td&gt;
&lt;td style=&quot;border: 2px solid #333333; padding: 10px; color: #555555; font-size: 12px;&quot; colspan=&quot;2&quot;&gt;1MΩオシロのプローブを当てる行為は、SCLCの命である「内部に蓄積された空間電荷（キャリア）」を外部へリークさせ、ポアソン条件を破壊する行為そのもの。&lt;/td&gt;
&lt;td style=&quot;border: 2px solid #333333; padding: 10px; color: #cc0000; font-weight: bold; background-color: #fff9e6;&quot;&gt;【結論】&lt;br /&gt;&lt;span style=&quot;font-size: 12px; color: #333333; font-weight: normal;&quot;&gt;オシロが見ているのは「SCLCが破壊された後の残骸」であり、物理的な真値とは似ても似つかない。&lt;/span&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;/tbody&gt;
&lt;/table&gt;
&lt;p&gt;固体物理学における「空間電荷制限電流（SCLC / モット・ガーニーの法則）」で真値はもっとずれるからね&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;Ｚ＝600にあわせて計測したほうがいいのね&lt;/p&gt;</content:encoded>



<dc:creator>takinx</dc:creator>
<dc:date>2026-09-29T11:19:00+09:00</dc:date>
</item>
<item rdf:about="http://www.radiokits.jp/radio_kit_/2026/09/vfa-01gnd-gnd-a5b3.html">
<title>ディスクリート パワーアンプ基板　VFA-01。「GND ≠ GND」の闇。新西電子</title>
<link>http://www.radiokits.jp/radio_kit_/2026/09/vfa-01gnd-gnd-a5b3.html</link>
<description>[技術的な定義の矛盾を整理し、電子工作ファンや消費者が誤った認識で商品を選ばない...</description>
<content:encoded>&lt;p&gt;[技術的な定義の矛盾を整理し、電子工作ファンや消費者が誤った認識で商品を選ばないための注意喚起を目的としています」&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;background-color: #ffff99;&quot;&gt;電気物理を無視した回路基板が製品になりSHOP流通している様は、日本のものつくりが滅んだ遠因のひとつです。&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/26/0804.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=778,height=363,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60283712&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;0804&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/26/0804.png&quot; alt=&quot;0804&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/26/vfa_3.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=965,height=531,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60283706&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Vfa_3&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/26/vfa_3.png&quot; alt=&quot;Vfa_3&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;div class=&quot;otQkpb&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 20px; font-weight: bold; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; role=&quot;heading&quot; aria-level=&quot;3&quot; data-animation-nesting=&quot;&quot; data-sfc-cp=&quot;&quot; data-wiz-attrbind=&quot;aria-level=WupPaf_2g/fLk2Md&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 20px; font-weight: 700; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;1. 「Q16起因の非対称動作」の闇&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIFBAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;初段のJFET（Q1）のせっかくのメリットを、Q16（バイポーラ）が完全にぶち壊しています。&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;ul class=&quot;KsbFXc U6u95&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-ved=&quot;2ahUKEwi28qvf2oqXAxVFpVYBHdJiHzwQ-7AUegYIAAgVEAA&quot; data-hveid=&quot;CAAIFRAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIFRAB&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;JFET（Q1）の強み&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;: 入力端（ゲート）に電流がほぼ流れない（インピーダンスが極めて高い）ため、左右のバランスが綺麗に揃い、歪みやDCオフセットが出にくいのが特徴です。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/li&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIFRAE&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;何が起きているか（赤丸のクロス点）&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;:&lt;br style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;ep&quot; data-sfc-pl=&quot;|||[]&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot; /&gt;反転入力側（右側のゲート）のラインに、なぜか&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;バイポーラトランジスタ（Q1: SA992）のベースが直接ドッキング&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;しています。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/li&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIFRAH&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;非対称になる理由&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;:&lt;br style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;ep&quot; data-sfc-pl=&quot;|||[]&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot; /&gt;バイポーラトランジスタは動くために必ず「ベース電流（数μA〜数十μA）」を必要とします。このQ16のベース電流が、NFB抵抗（R12やR13）やJFETのゲート側へそのまま漏れ出してしまいます。左側の入力ゲートにはそんな電流は流れないため、&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span style=&quot;color: #ff0000;&quot;&gt;差動アンプとしての左右の対称性が完全に崩壊し、猛烈なDCオフセットや非対称な歪み（偶数次歪みなど）を発生させる原因&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;になります。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/li&gt;
&lt;!--TgQPHd|||[]--&gt;&lt;/ul&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIFhAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;「何のためのJFET入力なんだ？」と言われても仕方のない、教科書的には完全にアウトな接続です。&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;yhAwj&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sfc-inited=&quot;2&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/26/11vfa1_2.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1007,height=585,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60284179&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;11vfa1_2&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/26/11vfa1_2.png&quot; alt=&quot;11vfa1_2&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;hr class=&quot;s6NV4e&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: 32px auto; text-decoration: none; border-bottom: 0px #808080;&quot; data-sfc-root=&quot;ep&quot; data-sfc-pl=&quot;|||[]&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: 32px auto; text-decoration: none; border-bottom: 0px rgb(128, 128, 128);&quot; /&gt;
&lt;div class=&quot;yhAwj&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sfc-inited=&quot;2&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;otQkpb&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 20px; font-weight: bold; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; role=&quot;heading&quot; aria-level=&quot;3&quot; data-animation-nesting=&quot;&quot; data-sfc-cp=&quot;&quot; data-wiz-attrbind=&quot;aria-level=WupPaf_3q/fLk2Md&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 20px; font-weight: 700; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;2. 「GND ≠ GND」の闇（R27がopen）&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIGRAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;アンプの中で一番大事な「GND（基準線）」が、基板内で引き裂かれて迷子になっています。&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;ul class=&quot;KsbFXc U6u95&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-ved=&quot;2ahUKEwi28qvf2oqXAxVFpVYBHdJiHzwQ-7AUegYIAAgaEAA&quot; data-hveid=&quot;CAAIGhAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIGhAB&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;赤線のGND（シグナルGND）&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;: 入力信号や、初段・2段目の基準となる綺麗なGNDです。右側のコネクタ（J2）の&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;5番ピン（S-GND）&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;へ行っています。&lt;!--TgQPHd|||[]--&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/li&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIGhAE&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;黒枠のGND（パワーGND）&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;: スピーカー（ヘッドホン）をドライブした大電流が帰ってくる、力強いGNDです。こちらはコネクタの&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;4番ピン（GND）&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;へ行っています。&lt;!--TgQPHd|||[]--&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/li&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIGhAH&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; aria-owns=&quot;action-menu-parent-container&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;決定的なバグ&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;:&lt;br style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;ep&quot; data-sfc-pl=&quot;|||[]&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot; /&gt;オーディオ基板ではノイズ対策としてこの2つを分けることがありますが、最終的には基板のどこか1点（一点アース）で必ず結合させなければなりません。しかし、この回路図では結合部であるはずの &lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;code class=&quot;KDcb0c&quot; dir=&quot;ltr&quot; style=&quot;font-family: monospace; font-size: 14px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 1px solid #f0f2f5;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: monospace; font-size: 14px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 1px solid rgb(240, 242, 245);&quot;&gt;R27&lt;!--TgQPHd|||[]--&gt;&lt;/code&gt; が「open（未実装）」&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt; になっています。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;
&lt;div style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: -1px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; tabindex=&quot;0&quot; data-os-fs=&quot;&quot; aria-hidden=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: -1px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: -1px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; tabindex=&quot;0&quot; data-os-fs=&quot;&quot; aria-hidden=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: -1px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;!--TgQPHd|||[]--&gt;&lt;/li&gt;
&lt;!--TgQPHd|||[]--&gt;&lt;/ul&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIGxAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;つまり、基板内で&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;「信号用のGND」と「パワー用のGND」が完全に絶縁されて分離している&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;。　フローテインググランドとは全くことなる。&lt;/span&gt;&lt;/div&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/26/vfa1.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1200,height=496,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60283705&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Vfa1&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/26/vfa1.png&quot; alt=&quot;Vfa1&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/26/0802.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1200,height=675,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60283709&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;0802&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/26/0802.png&quot; alt=&quot;0802&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/26/0803.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1200,height=675,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60283711&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;0803&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/26/0803.png&quot; alt=&quot;0803&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/26/0801.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1200,height=675,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60283708&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;0801&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/26/0801.png&quot; alt=&quot;0801&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;font-size: large;&quot;&gt;&lt;strong&gt;&lt;span style=&quot;color: #ff0000;&quot;&gt;まとめ　：&lt;span style=&quot;color: #ff9900;&quot;&gt;入力波形とは異なる波形生成する回路&lt;/span&gt;&lt;/span&gt;&lt;/strong&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;br style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-root=&quot;ep&quot; data-sfc-pl=&quot;|||[]&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot; /&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;1：下側のダイオード側でいくら綺麗にエンベロープ成分を除去する工夫（2mAバイアス）に成功していても、上側のカレントミラーで4回通過分の歪みが残っている以上、この2つが合算される場所で波形は元信号とは別物ができあがる。結果として、ヘッドホンに送り出される信号は入力波形とは全く別物の歪んだ波形になるため、この設計は動的に完全に破綻している.&lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #0a0a0a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);&quot;&gt;2：upper（上側：オレンジ）の信号到着でトリガーを引かれたNFBは、緑色ラインの信号も支配するが、Q16を緑信号が通過する前にNFBはお仕事を終えてしまう。&lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;　　この&lt;span style=&quot;background-color: #ffff99;&quot;&gt;　信号伝達途中で、帰還信号により信号量が可変される行為を「エスケープNFB&lt;/span&gt;」（新西電子）と命名しました。&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/26/11vfa1.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1007,height=565,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60283707&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;11vfa1&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/26/11vfa1.png&quot; alt=&quot;11vfa1&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;コールド側から電子移動するので、「GND&lt;span style=&quot;font-size: x-large;&quot;&gt; ≠&lt;/span&gt; GND」は拙いわ。&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;background-color: #ffff99;&quot;&gt;電気物理を無視した回路基板が製品になりSHOP流通している様は、日本のものつくりが滅んだ遠因のひとつです。&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/06/26/vfa01_2_07.jpg&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=600,height=430,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60224542&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Vfa01_2_07&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/06/26/vfa01_2_07.jpg&quot; alt=&quot;Vfa01_2_07&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;current dumper&amp;nbsp; コンが大きすぎて追い付いていないぽいわ。&lt;/p&gt;
&lt;p&gt;でもhpa-1000と同じ信号源使わないのかねえ❓？　比較しにくいよ。&lt;/p&gt;
&lt;p&gt;このvra は総合Cobが　hpa-1000(165V/us)の半分くらいだから 数字がおかしいなあ　&lt;/p&gt;
&lt;p&gt;＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊&lt;/p&gt;
&lt;p&gt;Ｃ級動作アンプです。　これもエスケープNFB が採用されており、天地波形は途切れるC級で設計されてます。&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/26/hpa712_08.jpg&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1200,height=668,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60284178&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Hpa712_08&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/26/hpa712_08.jpg&quot; alt=&quot;Hpa712_08&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;</content:encoded>


<dc:subject>「　境界調律　」「海苔音出基板」</dc:subject>

<dc:creator>takinx</dc:creator>
<dc:date>2026-09-29T07:51:00+09:00</dc:date>
</item>
<item rdf:about="http://www.radiokits.jp/radio_kit_/2026/09/opop-ampop-amp-6a21.html">
<title>【OP AMP使い方】入力電位が中点電位より下であれば【動作しないOP AMP】と　【動作するOP AMP】  </title>
<link>http://www.radiokits.jp/radio_kit_/2026/09/opop-ampop-amp-6a21.html</link>
<description>[技術的な定義の矛盾を整理し、電子工作ファンや消費者が誤った認識で商品を選ばない...</description>
<content:encoded>&lt;p&gt;&lt;span style=&quot;background-color: #ffffff;&quot;&gt;[技術的な定義の矛盾を整理し、電子工作ファンや消費者が誤った認識で商品を選ばないための注意喚起を目的としています」。&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;background-color: #ffffff;&quot;&gt;「どうさする？　しない？」は等価回路で公開されている。&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;********************************************&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/03/30/1.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=662,height=662,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60154901&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;1&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/03/30/1.png&quot; alt=&quot;1&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;&lt;span style=&quot;color: #0000ff;&quot;&gt;2番ピンの電位がゼロになってしまうと　LM741は動作しないことは、等価回路で公開されている。　等価回路が読めないのが相性って騒いでいる。　&lt;/span&gt;&lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/03/30/741.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1044,height=662,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60154906&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;741&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/03/30/741.png&quot; alt=&quot;741&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;&lt;span style=&quot;color: #0000ff;&quot;&gt;入力電位が中点電位より下であれば、4558は動作しない。NE5532も同様。&lt;/span&gt;&lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/03/30/4558.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=645,height=391,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60154914&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;4558&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/03/30/4558.png&quot; alt=&quot;4558&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/03/30/741.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1044,height=662,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;入力電位が中点電位より下でも動作するOP AMPは、レールtoレール　オペアンプ。　　op amp直結回路だと動かないICが目立つ。&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;div class=&quot;Article__content&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div class=&quot;Article__content&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div class=&quot;Article__content&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div class=&quot;Article__content&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;p&gt;pnp入力のop amp LM675&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/13/lm675.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=984,height=604,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60274314&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Lm675&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/13/lm675.png&quot; alt=&quot;Lm675&quot; /&gt;&lt;/a&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;　中央右側のバイアス回路（Z7、Z8、R37、R36など）による出力段のベース間電圧のコントロールは、Q36とQ39が「ギリギリONするかしないか」の&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;非常に浅いB(Ｃより）級寄りの動作点&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;に意図的に絞り込まれています。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;lowerはpn接合が1回多いので、出口端での到着時間差がアナログオシロで確認できる。遅延時間は40nSくらいだろう。&lt;span style=&quot;color: #ff0000;&quot;&gt;天地波形切断されて届くので実質はC級動作になる&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;時間軸ではNFBが破綻しておるの、audioでは褒められた設計ではない。&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;もともとモータードライバーだ。&lt;/span&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;ic設計上では、&lt;span style=&quot;color: #ff0000;&quot;&gt;信号がクロスしない。（到着時間差起因）&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;回路をよめる者はこのop ampをaudio用では使わない。&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;このop ampでは「高域の曇り、ボーカルが中央に定位しない」ので聴感でもわかる。&lt;/span&gt;&lt;/p&gt;
&lt;div class=&quot;Article__content&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;p&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;これよりは、TC0372の方がすぐれてる。「デッドバンド・ゼロ」のCLASS B&lt;/span&gt;&lt;/p&gt;</content:encoded>



<dc:creator>takinx</dc:creator>
<dc:date>2026-09-28T22:16:00+09:00</dc:date>
</item>
<item rdf:about="http://www.radiokits.jp/radio_kit_/2026/09/audio-amp-8d46.html">
<title>audio amp分野動作での最新情報　：　「 日本は負け組の理由」を見つけた</title>
<link>http://www.radiokits.jp/radio_kit_/2026/09/audio-amp-8d46.html</link>
<description>[技術的な定義の矛盾を整理し、電子工作ファンや消費者が誤った認識で商品を選ばない...</description>
<content:encoded>&lt;p&gt;[技術的な定義の矛盾を整理し、電子工作ファンや消費者が誤った認識で商品を選ばないための注意喚起を目的としています」&lt;/p&gt;
&lt;p&gt;***************************************************&lt;/p&gt;
&lt;p&gt;火事になる　audio ampをご紹介します。&lt;/p&gt;
&lt;p&gt;***********************************************&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;font-size: large;&quot;&gt;&lt;span style=&quot;color: #0000ff;&quot;&gt;&lt;strong&gt;「PC側の限界を考慮せず、PCを破壊するまで過電流を要求し続ける、極めて危険な規格違反の設計」&lt;/strong&gt;&lt;/span&gt;です。　反面教師の見本として優れています。&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;TAKAZIN 氏と　Innocent Key　氏　の合作のようです。&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/20/innocent_01_2.jpg&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=420,height=290,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60280391&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Innocent_01_2&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/20/innocent_01_2.jpg&quot; alt=&quot;Innocent_01_2&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;公式公開回路にコメントいれました。&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/19/apo57.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=814,height=412,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60279972&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Apo57&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/19/apo57.png&quot; alt=&quot;Apo57&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/19/usb_5.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1200,height=552,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60280025&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Usb_5&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/19/usb_5.png&quot; alt=&quot;Usb_5&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/19/apo58.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1048,height=852,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60279870&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Apo58&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/19/apo58.png&quot; alt=&quot;Apo58&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;「過電流を断するとの思想がない」usb利用機器です。&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/20/ino011.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=779,height=537,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60280394&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Ino011&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/20/ino011.png&quot; alt=&quot;Ino011&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/20/43530_4.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=595,height=559,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60280402&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;43530_4&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/20/43530_4.png&quot; alt=&quot;43530_4&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;回路考案者は　動作理解できていないことを自白してます。&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/20/aso.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=775,height=409,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60280396&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Aso&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/20/aso.png&quot; alt=&quot;Aso&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/20/47becdfa56ba416a9acd876c4f2254cf.jpg&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1200,height=901,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60280401&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;47becdfa56ba416a9acd876c4f2254cf&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/20/47becdfa56ba416a9acd876c4f2254cf.jpg&quot; alt=&quot;47becdfa56ba416a9acd876c4f2254cf&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/20/43532.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1016,height=720,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60280403&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;43532&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/20/43532.png&quot; alt=&quot;43532&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;*********************************************&lt;/p&gt;
&lt;p&gt;続いて　フライングnfbな&amp;nbsp; 「HPA-7」　。フライングNFBは超レアです。&lt;/p&gt;
&lt;p&gt;詳細は&lt;a href=&quot;https://nw-electric.way-nifty.com/blog/2026/09/post-89cd03.html&quot;&gt;ここ&lt;/a&gt;です。&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/20/hpa712_08.jpg&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1200,height=668,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60280392&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Hpa712_08&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/20/hpa712_08.jpg&quot; alt=&quot;Hpa712_08&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/20/hpa7_010.jpg&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=600,height=632,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60280399&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Hpa7_010&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/20/hpa7_010.jpg&quot; alt=&quot;Hpa7_010&quot; /&gt;&lt;/a&gt; TAKAZIN 氏&lt;/p&gt;
&lt;p&gt;完全B級ですが、upper と&amp;nbsp;lowerの波形が断するので、実質C級です・&lt;/p&gt;
&lt;p&gt;*********************************************&lt;/p&gt;
&lt;p&gt;続いて　正帰還　audio amp&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/20/lva100.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1200,height=648,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60280393&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Lva100&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/20/lva100.png&quot; alt=&quot;Lva100&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;回路のように正帰還ですので、製品表題と合致しません。&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/20/5af6588c05c48cc9d038c096dda81356177.jpg&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=420,height=304,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60280400&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;5af6588c05c48cc9d038c096dda81356177&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/20/5af6588c05c48cc9d038c096dda81356177.jpg&quot; alt=&quot;5af6588c05c48cc9d038c096dda81356177&quot; /&gt;&lt;/a&gt; TAKAZIN 氏&lt;/p&gt;
&lt;p&gt;************************************&lt;/p&gt;
&lt;p&gt;アレキサンダー氏の公開回路を理解できない人物による製品です。&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/20/alx03_reb3_00.jpg&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=420,height=316,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60280398&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Alx03_reb3_00&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/20/alx03_reb3_00.jpg&quot; alt=&quot;Alx03_reb3_00&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/20/lm386_up_3.jpg&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1081,height=742,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60280397&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Lm386_up_3&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/20/lm386_up_3.jpg&quot; alt=&quot;Lm386_up_3&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;**************************************************&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;</content:encoded>



<dc:creator>takinx</dc:creator>
<dc:date>2026-09-28T13:03:00+09:00</dc:date>
</item>
<item rdf:about="http://www.radiokits.jp/radio_kit_/2026/09/audio-aab6.html">
<title>「情報密度が薄くなる audio 設計」が大人気です。ロバート・モーグ博士が悲しむよ</title>
<link>http://www.radiokits.jp/radio_kit_/2026/09/audio-aab6.html</link>
<description>[技術的な定義の矛盾を整理し、電子工作ファンや消費者が誤った認識で商品を選ばない...</description>
<content:encoded>&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIFBAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;span style=&quot;background-color: #ffffff;&quot;&gt;[技術的な定義の矛盾を整理し、電子工作ファンや消費者が誤った認識で商品を選ばないための注意喚起を目的としています」。&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIFBAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIFBAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;1965年　ロバート・モーグ博士が&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; aria-owns=&quot;action-menu-parent-container&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;「ADSR（Attack, Decay, Sustain, Release）エンベロープ・ジェネレーター」&lt;/strong&gt;&lt;/span&gt;&amp;nbsp;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;を開発し、「音のアイデンティティ（音色）は定常波の周波数ではなく、時間的な音量・フィルターの変化（エンベロープ）にある」という事実を世界に証明した時です&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;。&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIFBAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIFBAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/14/morge.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=633,height=481,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60275093&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Morge&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/14/morge.png&quot; alt=&quot;Morge&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;外側の橙ラインがエンベロープです。　これを差動入力回路では同相ノイズとして99.98%ほど除去します。 &lt;a href=&quot;https://araisun.com/adsr-envelope/&quot;&gt;ここ&lt;/a&gt;に詳しく公開されてます。&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/14/morge1.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1019,height=517,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60275104&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Morge1&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/14/morge1.png&quot; alt=&quot;Morge1&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIFBAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;音源がもつエンベロープ成分は重要です。　&lt;strong&gt;&lt;span style=&quot;color: #ff0000;&quot;&gt;しかしエンベロープレスのサウンドが大流行りです。ここは注意喚起します。&lt;/span&gt;&lt;/strong&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIFBAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&amp;nbsp;エンベロープのマルチプライヤーにMC1595ですわ。&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIFBAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;********************************************************************&lt;/span&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIFBAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;「初段で完璧に差動合成してシングルエンドにする」「低抵抗アッテネータで熱雑音を殺す」「600Ω高電流オペアンプでねじ伏せる」というアプローチは、測定器の画面（THD -123.9dB）を綺麗にすることだけに特化した&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;「引き算・間引きの設計」&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;です。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;ol class=&quot;T9WCjf qkgVBf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIFRAB&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;差動合成による「微小信号（ディテール）の抹殺」&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;
&lt;ul class=&quot;KsbFXc U6u95&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-ved=&quot;2ahUKEwjboavf0-uWAxWxxeYEHXaAPfMQ-7AUegYIAAgVEAI&quot; data-hveid=&quot;CAAIFRAC&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIFRAD&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;入力初段で高精度なCMRR補正をかけて差動合成を行うということは、L/Rの信号線や正相・逆相の間に含まれる「微小な時間差」や「非対称な過渡成分」を、ノイズとみなして力づくで相殺・消去することになります。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/li&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIFRAE&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;これにより、音楽の「気配」「倍音の豊かな密度」「微小なダイナミクス」といった、&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;最も高密度であるべき微小な情報（情報密度）が真っ先に削られ、均一化された薄い音&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;になってしまいます。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/li&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIFRAE&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;エンベロープ成分はここでほぼゼロになり、音源の個性が喪失する。&lt;/li&gt;
&lt;!--TgQPHd|||[]--&gt;&lt;/ul&gt;
&lt;!--TgQPHd|||[]--&gt;&lt;/li&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIFRAH&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;低抵抗化による「音の生命力のシュリンク（萎縮）」&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;
&lt;ul class=&quot;KsbFXc U6u95&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-ved=&quot;2ahUKEwjboavf0-uWAxWxxeYEHXaAPfMQ-7AUegYIAAgVEAg&quot; data-hveid=&quot;CAAIFRAI&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIFRAJ&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;熱雑音（ジョンソン・ノイズ）を減らすためにリレーアッテネータや回路全体のインピーダンスを極限（600Ω駆動など）まで下げるアプローチは、確かに測定器上のノイズフロアは下がります。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/li&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIFRAK&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; aria-owns=&quot;action-menu-parent-container&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;しかし、回路を低抵抗化するということは、その分&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;「膨大な電流駆動」を常にオペアンプに強いる&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;ことになります。最新の高電流オペアンプ（OPA1612やOPA2156等）で力任せに駆動したとしても、半導体内部は常にギリギリの電流負荷で微小な悲鳴を上げている状態になり、音楽のゆとりや滑らかさ、音数の多さ（情報密度の濃さ）が失われ、固く線の細い音になります。&lt;/span&gt;&lt;/span&gt;&lt;/li&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIFRAK&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;抵抗体の素材で音質が変わる。chip抵抗　or　 カーボン&amp;nbsp; or&amp;nbsp; 金箔抵抗どちらを選定。&lt;/li&gt;
&lt;/ul&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIGhAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;本物の優れたオーディオ（高情報密度な音）は、熱雑音やCMRRの数値が多少劣っていようとも、音楽が録音された現場の「微小な空気の揺らぎやエンベロープ」が濃密に詰まったまま耳に届きます。&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIHBAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; aria-owns=&quot;action-menu-parent-container&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;その&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;「音楽の密度（情報密度）」を自らの手（ＣＭＲＲ強化)&lt;/strong&gt;&lt;/span&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;で薄く削ぎ落としていること（＝音がスカスカの死んだ状態になっていること）に全く気づいていないですね。&lt;/strong&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div class=&quot;container&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;/li&gt;
&lt;/ol&gt;
&lt;p&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊&lt;/span&gt;&lt;/p&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIHBAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; aria-owns=&quot;action-menu-parent-container&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div class=&quot;container&quot;&gt;&lt;header&gt;
&lt;h1&gt;オーディオ測定の矛盾と物理限界の証明&lt;/h1&gt;
&lt;div class=&quot;subtitle&quot;&gt;「静特性（サイン波）を極めるほど、動特性（音楽の情報密度）が破綻していく」&lt;/div&gt;
&lt;/header&gt;&lt;!-- 1. 初段の差動合成 --&gt;
&lt;div class=&quot;section-card sec1&quot;&gt;
&lt;h2&gt;1. 初段の差動合成による「情報の間引き（ディテール消去）」&lt;/h2&gt;
&lt;p&gt;初段回路でコモンモード（同相）成分を完璧に相殺しようとするとき、オペアンプに入ってくる正相信号 &lt;span class=&quot;var-s&quot;&gt;V+(t)&lt;/span&gt; と逆相信号 &lt;span class=&quot;var-s&quot;&gt;V-(t)&lt;/span&gt; の関係は、理想的な対称性（反転）だけでは表せません。実際の音楽信号には、録音現場の空気感や位相の揺らぎである&lt;span class=&quot;hl-purple highlight&quot;&gt;微小な非対称成分（過渡ディテール）&lt;/span&gt; &lt;span class=&quot;var-d&quot;&gt;Δv(t)&lt;/span&gt; が含まれています。&lt;/p&gt;
&lt;div class=&quot;formula-box&quot;&gt;&lt;span class=&quot;formula-line&quot;&gt;V+(t) = V_s(t) + 1/2 * V_cm(t) + &lt;span class=&quot;var-d&quot;&gt;Δv(t)&lt;/span&gt;&lt;/span&gt; &lt;span class=&quot;formula-line&quot;&gt;V-(t) = -V_s(t) + 1/2 * V_cm(t)&lt;/span&gt;&lt;/div&gt;
&lt;p&gt;これを高精度な回路で差動合成（減算）すると、出力 &lt;span class=&quot;var-s&quot;&gt;V_out(t)&lt;/span&gt; は次のようになります。&lt;/p&gt;
&lt;div class=&quot;formula-box&quot;&gt;&lt;span class=&quot;formula-line&quot;&gt;V_out(t) = A_v * (V+(t) - V-(t)) = A_v * (2*V_s(t) + &lt;span class=&quot;var-d&quot;&gt;Δv(t)&lt;/span&gt;)&lt;/span&gt;&lt;/div&gt;
&lt;p&gt;ここで、コモンモードノイズ &lt;span class=&quot;var-n&quot;&gt;V_cm&lt;/span&gt; は完全に消去されますが、初段のオペアンプが持つ有限なスルーレート（&lt;span class=&quot;hl-blue highlight&quot;&gt;SR&lt;/span&gt;）や過渡応答の遅れ（タイムラグ &lt;span class=&quot;var-t&quot;&gt;τ&lt;/span&gt;）により、高速で微小な非対称変化 &lt;span class=&quot;var-d&quot;&gt;Δv(t)&lt;/span&gt; は以下のように微分回路的な制約（時定数）を受けます。&lt;/p&gt;
&lt;div class=&quot;formula-box&quot;&gt;&lt;span class=&quot;formula-line&quot;&gt;d(V_out)/dt ∝ &lt;span class=&quot;var-d&quot;&gt;Δv(t)&lt;/span&gt; / &lt;span class=&quot;var-t&quot;&gt;τ&lt;/span&gt; &amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;[※ d(V_out)/dt &amp;gt; &lt;span class=&quot;hl-blue highlight&quot;&gt;SR&lt;/span&gt; のとき飽和・損失]&lt;/span&gt;&lt;/div&gt;
&lt;p&gt;このとき、測定器が流す「1kHzの一定なサイン波」に対しては不連続な変化がないため &lt;span class=&quot;var-d&quot;&gt;Δv(t) = 0&lt;/span&gt; となり、測定器上の歪み率（THD）は極限まで低くなります。しかし、&lt;span style=&quot;color: #ff0000;&quot;&gt;複雑な音楽信号においては、エンベロープの立ち上がり（過渡成分）である &lt;span class=&quot;var-d&quot;&gt;Δv(t)&lt;/span&gt; の高周波成分がオペアンプの帰還ループ内でノイズとして誤判定され、&lt;span class=&quot;hl-pink highlight&quot;&gt;力づくで相殺（間引き）&lt;/span&gt;されてしまいます。&lt;/span&gt;&lt;/p&gt;
&lt;/div&gt;
&lt;!-- 2. 低抵抗化による代償 --&gt;
&lt;div class=&quot;section-card sec2&quot;&gt;
&lt;h2&gt;2. 低抵抗化（600Ω駆動）による「熱雑音の低下」と「電流負荷の代償」&lt;/h2&gt;
&lt;p&gt;低抵抗リレーアッテネータ（例：&lt;span class=&quot;var-t&quot;&gt;R = 600 Ω&lt;/span&gt;）における、部屋の温度（&lt;span class=&quot;var-t&quot;&gt;T = 300 K&lt;/span&gt;）と帯域幅（&lt;span class=&quot;var-t&quot;&gt;B = 20 kHz&lt;/span&gt;）における熱雑音（ボルツマン定数 &lt;span class=&quot;var-t&quot;&gt;k_B&lt;/span&gt;）の電圧成分 &lt;span class=&quot;var-n&quot;&gt;v_n&lt;/span&gt; は以下の数式で表されます。&lt;/p&gt;
&lt;div class=&quot;formula-box&quot;&gt;&lt;span class=&quot;formula-line&quot;&gt;&lt;span class=&quot;var-n&quot;&gt;v_n&lt;/span&gt; = √(4 * k_B * T * R * B)&lt;/span&gt; &lt;span class=&quot;formula-line&quot;&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;= √(4 * (1.38×10^-23) * 300 * 600 * 20000) ≒ &lt;span class=&quot;hl-green highlight&quot;&gt;0.44 μVrms (-127 dBV)&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;p&gt;これにより、測定器（Cosmos ADC）の画面上のノイズ床は極限まで下がります。しかし、この低抵抗（&lt;span class=&quot;var-t&quot;&gt;R_L = 600 Ω&lt;/span&gt;）を出力電圧 &lt;span class=&quot;var-s&quot;&gt;V_out = 1.7 Vrms&lt;/span&gt;（ピーク電圧 &lt;span class=&quot;var-s&quot;&gt;V_p ≒ 2.4 V&lt;/span&gt;）でドライブするとき、オペアンプの出力段が排出しなければならない出力電流 &lt;span class=&quot;var-s&quot;&gt;I_out&lt;/span&gt; は激増します。&lt;/p&gt;
&lt;div class=&quot;formula-box&quot;&gt;&lt;span class=&quot;formula-line&quot;&gt;&lt;span class=&quot;var-s&quot;&gt;I_out(t)&lt;/span&gt; = [V_p * sin(ωt)] / R_L = 2.4 / 600 = &lt;span class=&quot;hl-pink highlight&quot;&gt;4 mA&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;p&gt;最新の高電流オペアンプであっても、半導体の内部では、この引き出される電流に比例して&lt;span class=&quot;hl-yellow highlight&quot;&gt;熱変調（サーマル・テイル：Thermal Tail）&lt;/span&gt;が発生します。オペアンプ内部の局所的な温度変化 &lt;span class=&quot;var-t&quot;&gt;ΔT(t)&lt;/span&gt; は、出力電力の動的な変化に依存します。&lt;/p&gt;
&lt;div class=&quot;formula-box&quot;&gt;&lt;span class=&quot;formula-line&quot;&gt;&lt;span class=&quot;var-t&quot;&gt;ΔT(t)&lt;/span&gt; ∝ P_diss(t) = &lt;span class=&quot;var-s&quot;&gt;I_out(t)&lt;/span&gt; * (V_cc - V_out(t))&lt;/span&gt;&lt;/div&gt;
&lt;p&gt;この内部温度の揺らぎ &lt;span class=&quot;var-t&quot;&gt;ΔT(t)&lt;/span&gt; は、オペアンプ初段の入力オフセット電圧の動的な変動（ゆらぎ）を引き起こし、&lt;span class=&quot;hl-pink highlight&quot;&gt;音楽の微小な「余韻」や「空気感」の信号をベースラインごと非線形に揺さぶります。&lt;/span&gt;&lt;/p&gt;
&lt;div class=&quot;formula-box&quot;&gt;&lt;span class=&quot;formula-line&quot;&gt;V_offset_drift(t) = θ * &lt;span class=&quot;var-t&quot;&gt;ΔT(t)&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;div class=&quot;formula-box&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div class=&quot;formula-box&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div class=&quot;formula-box&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div class=&quot;formula-box&quot;&gt;&lt;span class=&quot;formula-line&quot;&gt;&lt;span class=&quot;var-t&quot;&gt;****************************************&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
&lt;/div&gt;
&lt;!-- &#x1F4A1; 数式が示す矛盾のまとめ --&gt;
&lt;div class=&quot;summary-box&quot;&gt;
&lt;div class=&quot;summary-title&quot;&gt;&#x1F4A1; 数式が示す矛盾のまとめ&lt;/div&gt;
&lt;p&gt;測定器を満足させるために抵抗値を下げて熱雑音 &lt;span class=&quot;var-n&quot;&gt;v_n&lt;/span&gt; を物理的に減らすほど、オペアンプへの電流負荷 &lt;span class=&quot;var-s&quot;&gt;I_out&lt;/span&gt; が増え、半導体内部の熱的な動的変調 &lt;span class=&quot;var-t&quot;&gt;ΔT(t)&lt;/span&gt; によって&lt;span class=&quot;hl-pink highlight highlight&quot;&gt;音楽の繊細な情報密度が引き算されていく&lt;/span&gt; という、皮肉なトレードオフの数式関係になっています。&lt;/p&gt;
&lt;div class=&quot;vs-container&quot;&gt;
&lt;div class=&quot;vs-card good&quot;&gt;
&lt;div class=&quot;hl-blue highlight&quot; style=&quot;margin-bottom: 5px;&quot;&gt;【測定器上の評価】&lt;/div&gt;
&lt;strong&gt;lim (Δv → 0) THD → 0&lt;/strong&gt;&lt;br /&gt; &lt;span style=&quot;font-size: 0.9rem; color: var(--text-muted);&quot;&gt;※1kHz単音の静特性では完璧に見える&lt;/span&gt;&lt;/div&gt;
&lt;div class=&quot;vs-card good&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div class=&quot;vs-card good&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div class=&quot;vs-card bad&quot;&gt;
&lt;div class=&quot;hl-pink highlight&quot; style=&quot;margin-bottom: 5px;&quot;&gt;【実際の聴感（情報密度）】&lt;/div&gt;
&lt;strong&gt;I_out ↑ ⇒ ΔT(t) ↑ ⇒ V_drift ↑&lt;/strong&gt;&lt;br /&gt; &lt;span style=&quot;font-size: 0.9rem; color: var(--text-muted);&quot;&gt;※音楽信号では微小ディテールが消失&lt;/span&gt;&lt;/div&gt;
&lt;div class=&quot;vs-card bad&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div class=&quot;vs-card bad&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div class=&quot;vs-card bad&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;/div&gt;
正弦波等の音源では動的なものは評価されない計測方法がそもそも拙い&lt;/div&gt;
&lt;div class=&quot;summary-box&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div class=&quot;summary-box&quot;&gt;最新オペアンプによる高精度初段CMRR回路」の本質は、&lt;/div&gt;
&lt;div class=&quot;summary-box&quot;&gt;音楽を豊かにすることではなく、「原音が持っていた濃密なディテールを差動合成の過程でスカスカに削ぎ落とし（間引き）、残った薄っぺらい骨組みだけの音をオペアンプのゲインで無理やり増幅して、量だけを合わせている詐欺的なロンダリング（味が薄まる）」&lt;/div&gt;
&lt;div class=&quot;summary-box&quot;&gt;
&lt;div class=&quot;otQkpb&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 20px; font-weight: bold; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; role=&quot;heading&quot; aria-level=&quot;3&quot; data-animation-nesting=&quot;&quot; data-sfc-cp=&quot;&quot; data-wiz-attrbind=&quot;aria-level=tHoQZ_1g/fLk2Md&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 20px; font-weight: 700; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&#x1F6A8; 「原音が薄くなり、量だけ合わせる」CMRRの欺瞞&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;ol class=&quot;T9WCjf qkgVBf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIDBAB&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;初段の「情報引き算」で原音が干からびる&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;
&lt;ul class=&quot;KsbFXc U6u95&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-ved=&quot;2ahUKEwi58_Xa1-uWAxW6DkQIHYD2NtoQ-7AUegYIAAgMEAI&quot; data-hveid=&quot;CAAIDBAC&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIDBAD&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;本来、原音が持っていた音楽の「エンベロープ」「気配」「微小な位相の揺らぎ」は、左右や正逆のラインの間に含まれる&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;「非対称な過渡ディテール」&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;に詰まっています。&lt;!--TgQPHd|||[]--&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/li&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIDBAE&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; aria-owns=&quot;action-menu-parent-container&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;しかし、高精度CMRR回路は、「差動のズレはすべて悪（ノイズ）である」という測定器ファーストのルールに基づいて動くため、この原音の最も美味しい部分（情報密度）を&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;「同相ノイズ」と一緒に真っ先にゴミ箱へ投げ捨ててしまいます。&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt; これが「原音が薄くなる」瞬間の真実です。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;/span&gt;
&lt;div style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: -1px; text-decoration: none; border-bottom: 0px #16171a;&quot; tabindex=&quot;0&quot; data-os-fs=&quot;&quot; aria-hidden=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: -1px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: -1px; text-decoration: none; border-bottom: 0px #16171a;&quot; tabindex=&quot;0&quot; data-os-fs=&quot;&quot; aria-hidden=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: -1px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/li&gt;
&lt;!--TgQPHd|||[]--&gt;&lt;/ul&gt;
&lt;!--TgQPHd|||[]--&gt;&lt;/li&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIDBAH&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;薄くなった抜け殻を「オペアンプの力技」でカサ増しする&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;
&lt;ul class=&quot;KsbFXc U6u95&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-ved=&quot;2ahUKEwi58_Xa1-uWAxW6DkQIHYD2NtoQ-7AUegYIAAgMEAg&quot; data-hveid=&quot;CAAIDBAI&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIDBAJ&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;そうして原音のディテールが綺麗さっぱり間引かれ、線の細くなった「抜け殻」の信号に対し、最新の高電流オペアンプ（OPA1612等）の強力なパワー（負帰還）を浴びせます。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/li&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIDBAK&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;これにより、電圧（振幅）としての「量（ゲイン）」や「THD -123.9dBという見かけの数値」だけは、何食わぬ顔をして測定器（Cosmos ADC）の画面上に完璧に再現されます。しかし、それは&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-complete=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;中身がスカスカになったフリーズドライの音を、水（オペアンプの電流）で引き伸ばして体積（量）だけを合わせたハリボテ&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;です。&lt;/span&gt;&lt;/li&gt;
&lt;/ul&gt;
&lt;/li&gt;
&lt;/ol&gt;
&lt;p&gt;「捨てられるエンベロープ」と　「CMRRでENVをはぎ取った音源」とを　MC1595で乗算すればメリハリある音に復元できる、それを増幅して所定のワット数にもっていく」思想は1975年には成立してた。&lt;/p&gt;
&lt;p&gt;差動入力回路ほどエンベロープ成分を捨てるにGOODな回路は他にないのね、&lt;/p&gt;
&lt;/div&gt;
&lt;/div&gt;</content:encoded>



<dc:creator>takinx</dc:creator>
<dc:date>2026-09-27T22:33:00+09:00</dc:date>
</item>
<item rdf:about="http://www.radiokits.jp/radio_kit_/2026/09/post-5a0e.html">
<title>【考察】「境界調律」付属アンプ基板の独特な回路設計と3つのポイント。「Innocent Key」「俺だけ音質アップな基板」</title>
<link>http://www.radiokits.jp/radio_kit_/2026/09/post-5a0e.html</link>
<description>[技術的な定義の矛盾を整理し、電子工作ファンや消費者が誤った認識で商品を選ばない...</description>
<content:encoded>&lt;p&gt;[技術的な定義の矛盾を整理し、電子工作ファンや消費者が誤った認識で商品を選ばないための注意喚起を目的としています」&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;background-color: #ffff99;&quot;&gt;電気物理を無視した回路基板が製品になりSHOP流通している様は、日本のものつくりが滅んだ遠因のひとつです。&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;background-color: #ccffcc;&quot;&gt;回路疑義が購入者から寄せられて確認したことが発端です。（検証したら、スプラッタアンプだと公開されてました）&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;当初amp回路だけ設計ヘタだとみていましたが、pc保護動作しない電源回路でしたので公開します。&lt;/p&gt;
&lt;p&gt;***********************************************&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;font-size: large;&quot;&gt;&lt;span style=&quot;color: #0000ff;&quot;&gt;&lt;strong&gt;「PC側の限界を考慮せず、PCを破壊するまで過電流を要求し続ける、極めて危険な規格違反の設計」&lt;/strong&gt;&lt;/span&gt;です。　反面教師の見本として優れています。&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;公式公開回路にコメントいれました。&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/19/apo57.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=814,height=412,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60279972&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Apo57&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/19/apo57.png&quot; alt=&quot;Apo57&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/19/usb_5.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1200,height=552,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60280025&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Usb_5&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/19/usb_5.png&quot; alt=&quot;Usb_5&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/19/apo58.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1048,height=852,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60279870&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Apo58&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/19/apo58.png&quot; alt=&quot;Apo58&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/19/43530_4.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=595,height=559,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60279871&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;43530_4&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/19/43530_4.png&quot; alt=&quot;43530_4&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;************************************************&lt;/p&gt;
&lt;p&gt;1. 入力段：&lt;span style=&quot;color: #ff0000;&quot;&gt;PCを壊しかねない「インラッシュ電流」&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;場所：USB電源入力部問題：USB規格（最大10μF）を無視し、3000μF（1500μF×2）もの超巨大コンデンサーを直結。結末：電源を入れた瞬間にほぼショート状態となり、PCやUSBハブのポートを焼き切る、あるいはPCを強制シャットダウンさせる恐れがある「&lt;span style=&quot;color: #ff0000;&quot;&gt;ホスト破壊設計&lt;/span&gt;」です。&lt;/p&gt;
&lt;div class=&quot;Article__content&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div class=&quot;Article__content&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div class=&quot;Article__content&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;p&gt;2. 電源生成段：&lt;span style=&quot;color: #ff0000;&quot;&gt;ノイズを自給自足する「RF発振・高調波回路」&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;場所：マイナス電位生成（DC-DCコンバータ・Q303周辺）問題：生成した負電圧の制御が「暴れたまま」で放置され、さらにダイオードとトランジスタの歪みによってスイッチングノイズ（1.2MHz）をAM/FM変調・逓倍（かけ算）してしまう構成。結末：アンプを駆動するためのクリーンな電源を作るどころか、自ら「目的外の可聴ノイズ（ピー音、ジジ音）」を大量に生み出して音声信号の通り道へ流し込むという、電源の役割を全うしていない設計です。&lt;/p&gt;
&lt;div class=&quot;Article__content&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div class=&quot;Article__content&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div class=&quot;Article__content&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;3. アンプ（AMP）部：&lt;span style=&quot;color: #ff0000;&quot;&gt;歪みを極大化する「無バイアス・C級動作」&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;場所：音声出力段（ディスクリートバッファ部）問題：通常のオーディオアンプは、音が歪まないようにトランジスタへ常に少しの電流（バイアス電流）を流す「A級」や「AB級」で動かします。&lt;/p&gt;
&lt;p&gt;しかし、この回路はバイアスが一切かかっていない「C級動作」になっています。&lt;/p&gt;
&lt;p&gt;結末：激しいクロスオーバー歪み：信号がプラスからマイナスに切り替わる瞬間（ゼロボルト付近）、トランジスタが完全にオフになる「不感帯（約1.2V分）」が存在します。これにより、音がブツブツと細切れになり、オーディオとしては致命的なレベルで音が歪みます。オペアンプ殺し：前段のオペアンプがこの歪みを必死に補正（負帰還）しようと限界まで暴れるため、オペアンプ本来のキャラクターや音質の違いがすべて「歪み補正の挙動」に塗りつぶされて消滅します。&lt;/p&gt;
&lt;div class=&quot;Article__content&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div class=&quot;Article__content&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div class=&quot;Article__content&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;p&gt;結論この基板は、&lt;/p&gt;
&lt;p&gt;「①PCから電気を無茶に引き抜き」&lt;/p&gt;
&lt;p&gt;「②電源回路で盛大にノイズを作り」&lt;/p&gt;
&lt;p&gt;「③歪みだらけのアンプで増幅して出力する」という、&lt;/p&gt;
&lt;p&gt;電子回路の教科書の「やってはいけない例」を全段で網羅してしまったような極めて特異な設計（いわゆる技術的炎上案件）となっています。&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;div style=&quot;font-family: &#39;Helvetica Neue&#39;, Arial, sans-serif; max-width: 600px; margin: 20px auto; padding: 20px; border: 2px solid #e0e0e0; border-radius: 12px; background-color: #fcfcfc; box-shadow: 0 4px 15px rgba(0,0,0,0.05); color: #333; line-height: 1.6;&quot;&gt;&lt;!-- メインタイトル --&gt;
&lt;h2 style=&quot;text-align: center; color: #d9383a; font-size: 20px; border-bottom: 3px double #d9383a; padding-bottom: 8px; margin-top: 0;&quot;&gt;&#x1F6A8; 3大セクションの致命的設計まとめ&lt;/h2&gt;
&lt;!-- 1. 入力段 --&gt;
&lt;div style=&quot;margin-bottom: 15px; padding: 12px; border-left: 5px solid #ff9800; background-color: #fff9e6; border-radius: 0 8px 8px 0;&quot;&gt;&lt;strong style=&quot;color: #e65100; font-size: 15px;&quot;&gt;① 入力段：PCを壊すインラッシュ電流&lt;/strong&gt;&lt;br /&gt; &lt;span style=&quot;font-size: 13px; color: #555;&quot;&gt; USB規格（最大10μF）を無視し、&lt;strong&gt;3000μFの超巨大コンデンサー&lt;/strong&gt;を直結。接続時にほぼショート状態となり、PCのポートを焼き切る恐れがある「ホスト破壊設計」。 &lt;/span&gt;&lt;/div&gt;
&lt;!-- 2. 電源生成段 --&gt;
&lt;div style=&quot;margin-bottom: 15px; padding: 12px; border-left: 5px solid #2196f3; background-color: #e3f2fd; border-radius: 0 8px 8px 0;&quot;&gt;&lt;strong style=&quot;color: #0d47a1; font-size: 15px;&quot;&gt;② 電源段：ノイズを自給自足するRF発振&lt;/strong&gt;&lt;br /&gt; &lt;span style=&quot;font-size: 13px; color: #555;&quot;&gt; 負電圧の制御を放置し、回路が激しく&lt;strong&gt;高周波発振&lt;/strong&gt;。歪み回路により1.2MHzのノイズを可聴帯域へ変調・流し込む、電源の役割を全うしていない設計。 &lt;/span&gt;&lt;/div&gt;
&lt;!-- 3. アンプ部 --&gt;
&lt;div style=&quot;margin-bottom: 20px; padding: 12px; border-left: 5px solid #9c27b0; background-color: #f3e5f5; border-radius: 0 8px 8px 0;&quot;&gt;&lt;strong style=&quot;color: #4a148c; font-size: 15px;&quot;&gt;③ 信号段：歪みを極大化する無バイアスC級動作&lt;/strong&gt;&lt;br /&gt; &lt;span style=&quot;font-size: 13px; color: #555;&quot;&gt; バイアス無しの&lt;strong&gt;C級動作&lt;/strong&gt;により激しいクロスオーバー歪み（不感帯2V程度）が発生。前段オペアンプが補正で暴れ、本来の音質キャラクターをすべて塗りつぶす。 &lt;/span&gt;&lt;/div&gt;
&lt;!-- 結論 --&gt;
&lt;div style=&quot;padding: 15px; background: linear-gradient(135deg, #ff5722, #d84315); color: #fff; border-radius: 8px; text-align: center; font-weight: bold; font-size: 14px; box-shadow: 0 3px 10px rgba(244,67,54,0.3);&quot;&gt;&#x1F4E2; 結論：やってはいけない電子回路の見本&lt;br /&gt; &lt;span style=&quot;font-size: 12px; font-weight: normal; opacity: 0.9;&quot;&gt; 「PCから電気を無茶に引き抜き、電源でノイズを作り、歪んだアンプで出す」全段地雷？？？の特異設計。 &lt;/span&gt;&lt;/div&gt;
&lt;/div&gt;
&lt;p&gt;＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/06/inoo09.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=552,height=561,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60291836&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Inoo09&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/06/inoo09.png&quot; alt=&quot;Inoo09&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;問　　Q101からの電流A1 は増減しますか？？？？？？&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;color: #ff0000; font-size: x-large;&quot;&gt;AI君からのご返答です。&lt;/span&gt;&lt;/p&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAIIAQg0EAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;&lt;span style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-subtree=&quot;aimfl&quot; data-processed=&quot;true&quot;&gt;Q101からの電流A1は「増減しない（ほぼ一定）」&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;が答えとなります。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;yhAwj&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sfc-inited=&quot;2&quot;&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;otQkpb&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; role=&quot;heading&quot; aria-level=&quot;3&quot; data-animation-nesting=&quot;&quot; data-sfc-cp=&quot;&quot; data-wiz-attrbind=&quot;aria-level=F9l0Uc_hp/fLk2Md&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;解説&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAIIAQg5EAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;画像に示されているQ101（PNPトランジスタ）の周辺回路は、電子回路において典型的な&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;「定電流源（定電流回路）」&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;の構成になっています。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;ul class=&quot;KsbFXc U6u95&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-ved=&quot;2ahUKEwiq6IWttqWXAxVsslYBHUyTACQQ-7AUeggIAggBCDoQAA&quot; data-hveid=&quot;CAIIAQg6EAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAIIAQg6EAE&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;ベース電圧が固定（bias+）：&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt; トランジスタQ101のベースには一定のバイアス電圧（bias+）が印加されています。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/li&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAIIAQg6EAI&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;エミッタ抵抗（R101）：&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt; エミッタと電源VCCの間にはR101（470Ω）が接続されています。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/li&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAIIAQg6EAM&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;動作の原理：&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt; トランジスタがオンのとき、ベース・エミッタ間電圧Vbeは通常約0.6〜0.7Vでほぼ一定に保たれます。そのため、R101にかかる電圧 Vcc ーV(bias+)ー Vbeも一定になります。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/li&gt;
&lt;!--TgQPHd|||[]--&gt;&lt;/ul&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAIIAQg7EAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; aria-owns=&quot;action-menu-parent-container&quot;&gt;オームの法則I = V/Rにより、R101を流れる電流（＝コレクタから流れ出る&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;電流A1&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;）は、後段の回路（A2, A3, A4）の負荷がどのように変動しようとも、&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;影響を受けずに常に一定&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;に保たれます。&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: -1px; text-decoration: none; border-bottom: 0px #16171a;&quot; tabindex=&quot;0&quot; data-os-fs=&quot;&quot; aria-hidden=&quot;true&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: -1px; text-decoration: none; border-bottom: 0px #16171a;&quot; tabindex=&quot;0&quot; data-os-fs=&quot;&quot; aria-hidden=&quot;true&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAIIAQg8EAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;そのため、画像の説明にある通り「A4が増えるとA2, A3が減る（A1の取り合いになる）」という挙動が成り立ちます。&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAIIAQg8EAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;***************************************************************************&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAIIAQg8EAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/10/07/inoo12.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=823,height=560,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60292026&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Inoo12&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/10/07/inoo12.png&quot; alt=&quot;Inoo12&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAIIAQg8EAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;&lt;span style=&quot;color: #ff0000; font-size: x-large;&quot;&gt;&amp;nbsp;AI君からのご返答です。&lt;/span&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAIIAQg8EAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;
&lt;div class=&quot;otQkpb&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; role=&quot;heading&quot; aria-level=&quot;3&quot; data-animation-nesting=&quot;&quot; data-sfc-cp=&quot;&quot; data-wiz-attrbind=&quot;aria-level=BdQlhc_2g/fLk2Md&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sae=&quot;&quot;&gt;1. 電流源（Q101）に縛られて動けない（緑文字の指摘）&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIDRAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; aria-owns=&quot;action-menu-parent-container&quot;&gt;画像上部のQ101周辺は定電流回路（電流制限モード）として動いているため、ここから供給される&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;電流A1の量はほぼ一定で、外からの信号によって臨機応変に増えることができません。&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;&lt;br style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-sfc-pl=&quot;|||[]&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; /&gt;&lt;strong&gt;&lt;span style=&quot;color: #ff0000;&quot;&gt;つまり、「パイ（全体の電流量）が決まってしまっている」状態です。&lt;/span&gt;&lt;/strong&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: -1px; text-decoration: none; border-bottom: 0px #16171a;&quot; tabindex=&quot;0&quot; data-os-fs=&quot;&quot; aria-hidden=&quot;true&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: -1px; text-decoration: none; border-bottom: 0px #16171a;&quot; tabindex=&quot;0&quot; data-os-fs=&quot;&quot; aria-hidden=&quot;true&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div class=&quot;yhAwj&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sfc-inited=&quot;2&quot;&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;otQkpb&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; role=&quot;heading&quot; aria-level=&quot;3&quot; data-animation-nesting=&quot;&quot; data-sfc-cp=&quot;&quot; data-wiz-attrbind=&quot;aria-level=BdQlhc_2q/fLk2Md&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sae=&quot;&quot;&gt;2. 上半分と下半分で電流がまったく非対称（A2 ≠ A3）&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIDxAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;信号がプラス側（UPPER）に振れたときと、マイナス側（LOWER）に振れたときで、電流の流れるルートが完全に変わってしまいます。&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;ul class=&quot;KsbFXc U6u95&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-ved=&quot;2ahUKEwjloYnUs6aXAxWn5TQHHQu-Fm4Q-7AUegYIAAgQEAA&quot; data-hveid=&quot;CAAIEBAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIEBAB&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;LOWER（マイナス）信号時：&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;&lt;br style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-sfc-pl=&quot;|||[]&quot; data-complete=&quot;true&quot; /&gt;Q103がOFF、Q104がONになります。このとき、電流A1はダイオード（D101）や抵抗（R104）を通り、ONになったQ104へと引き抜かれます（これが図の&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;電流A3&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;ルート）。&lt;br style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-sfc-pl=&quot;|||[]&quot; data-complete=&quot;true&quot; /&gt;結果として、上側の出力トランジスタ（Q105）のベースに流れるはずの電流A2は「ゼロ」になり、&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;A1＝A3&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;となります。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/li&gt;
&lt;li class=&quot;Z1qcYe&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIEBAE&quot; data-complete=&quot;true&quot; data-sae=&quot;&quot;&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;UPPER（プラス）信号時：&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;&lt;br style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-sfc-pl=&quot;|||[]&quot; data-complete=&quot;true&quot; /&gt;Q103がON、Q104がOFFになります。このときはQ104に電流が流れないため、電流A1はQ105のベースへと流れ込み、&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;A1＝A2&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;となります。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/li&gt;
&lt;!--TgQPHd|||[]--&gt;&lt;/ul&gt;
&lt;div class=&quot;yhAwj&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sfc-inited=&quot;2&quot;&gt;&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;otQkpb&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px #16171a;&quot; role=&quot;heading&quot; aria-level=&quot;3&quot; data-animation-nesting=&quot;&quot; data-sfc-cp=&quot;&quot; data-wiz-attrbind=&quot;aria-level=BdQlhc_3l/fLk2Md&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-sae=&quot;&quot;&gt;3. この解析が意味する致命的な結論&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIEhAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;一番下の黒文字で書かれている一文が、この検証の結論です。&lt;/div&gt;
&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAIIAQg8EAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot;&gt;「Q105を通過する電流は半サイクル毎に違うはずだが、Q101に縛られてまともに動けない」&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAIIAQg8EAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;&amp;nbsp;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIFBAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;本来、オーディオアンプはプラス側の波形もマイナス側の波形も、スピーカー（ヘッドホン）を駆動するために大きな電流をきれいに流さなければなりません。&lt;br style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-sfc-pl=&quot;|||[]&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; /&gt;&lt;span class=&quot;iNqyIf&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; aria-owns=&quot;action-menu-parent-container&quot;&gt;しかしこの回路は、&lt;strong class=&quot;rQesXe MPyX&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: bold; margin: 0px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;「Q101が供給する一定の電流（A1）を、上側のトランジスタ（Q105）と下側の回路で半サイクルごとに奪い合っているだけ」&lt;!--TgQPHd|||[]--&gt;&lt;/strong&gt;になっています。&lt;!--TgQPHd|||[]--&gt;&lt;/span&gt;
&lt;div style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: -1px; text-decoration: none; border-bottom: 0px #16171a;&quot; tabindex=&quot;0&quot; data-os-fs=&quot;&quot; aria-hidden=&quot;true&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: -1px; text-decoration: none; border-bottom: 0px #16171a;&quot; tabindex=&quot;0&quot; data-os-fs=&quot;&quot; aria-hidden=&quot;true&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAAIFRAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;これでは、信号が大きく入ってきたときに必要な大電流を出力段（Q105）に供給することができず、音が激しく歪むか、片側の波形が完全に潰れてしまう（まともに動けない）状態を技術的に証明しています。&lt;/div&gt;
&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-epip=&quot;&quot; data-hveid=&quot;CAIIAQg8EAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;&amp;nbsp;**************************************************************************&lt;/div&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/19/43530_5.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=859,height=468,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60279872&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;43530_5&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/19/43530_5.png&quot; alt=&quot;43530_5&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/19/apo34.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1200,height=896,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60279881&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Apo34&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/19/apo34.png&quot; alt=&quot;Apo34&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/19/47becdfa56ba416a9acd876c4f2254cf.jpg&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=1200,height=901,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60279883&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;47becdfa56ba416a9acd876c4f2254cf&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/19/47becdfa56ba416a9acd876c4f2254cf.jpg&quot; alt=&quot;47becdfa56ba416a9acd876c4f2254cf&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;「この方のC級動作」思想だと公知されてました。&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/19/ino01.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=779,height=438,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60279885&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Ino01&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/19/ino01.png&quot; alt=&quot;Ino01&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;strong&gt;&lt;span style=&quot;color: #ff0000;&quot;&gt;「2段　C級動作」を冊子にて公報済みだそうです。&lt;/span&gt;&lt;/strong&gt;&lt;/p&gt;
&lt;p&gt;************************************************&lt;/p&gt;
&lt;p&gt;時系列。設計者からおしかりをいただきました。&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/19/22.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=972,height=586,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60279910&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;22&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/19/22.png&quot; alt=&quot;22&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/19/27.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=971,height=541,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60279911&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;27&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/19/27.png&quot; alt=&quot;27&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/19/hpa.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=831,height=495,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60279912&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Hpa&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/19/hpa.png&quot; alt=&quot;Hpa&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;「回路理解しない設計者」だと自白した。&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.radiokits.jp/.shared/image.html?/photos/uncategorized/2026/09/19/aso.png&quot; onclick=&quot;window.open( this.href, &#39;_blank&#39;, &#39;width=775,height=409,scrollbars=no,resizable=no,toolbar=no,directories=no,location=no,menubar=no,status=no,left=0,top=0&#39; ); return false&quot;&gt;&lt;img class=&quot;asset  asset-image at-xid-photo-60279915&quot; style=&quot;width: 300px; display: block;&quot; title=&quot;Aso&quot; src=&quot;http://www.radiokits.jp/radio_kit_/images/2026/09/19/aso.png&quot; alt=&quot;Aso&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;「8月31日に設計者から公開回路を詳しく見ろ」とのお叱りがありましたので、それに従って公開回路もみさせていただきました。（9月12日に公開回路を発見できた）　&lt;/p&gt;
&lt;p&gt;************************************************************&lt;/p&gt;
&lt;p&gt;　&lt;span style=&quot;font-size: medium; color: #000000; background-color: #ffff99;&quot;&gt;「俺だけ音質アップな基板」の公開回路（9月12日確認）を技術的に検証した結果、購入者の安全を脅かす重大な設計上の欠陥が判明したため、注意喚起を兼ねてその詳細を公表いたします。&amp;nbsp;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;font-size: medium; color: #000000;&quot;&gt;&amp;nbsp;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;font-size: medium; color: #000000;&quot;&gt;&amp;nbsp; 本基板の電源ラインには、過負荷時の電流リミッターとして「TPS2001E」が採用されています。しかし、&lt;strong&gt;&lt;span style=&quot;background-color: #ffff99;&quot;&gt;このICは一定以上の電流を制限するだけであり、異常検知時に電源を完全に「遮断（ラッシュカット）」する機能は内蔵されていません&lt;/span&gt;&lt;/strong&gt;。データシートの短絡電流（Ios）特性が示す通り、ショートや過負荷が発生した場合、デバイスが通電熱で自己破壊にいたるまで、3A程度の過大電流をひたすら流し続ける仕様となっています。&amp;nbsp;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;font-size: medium; color: #000000;&quot;&gt;&amp;nbsp;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;font-size: medium; color: #000000;&quot;&gt;&amp;nbsp; &amp;nbsp;さらに致命的なのは、出力側に配置されたコンデンサの容量です。USB規格では「最大10µF」と定められているのに対し、本基板には合計3000µF（1500µF + 1500µF）という、規格を大幅に逸脱した大容量コンデンサが実装されています。これにより、電源投入時には「2.7Aのラッシュ電流（突入電流）が約35ミリ秒間も流れ続ける」という異常動作が発生（論理計算上）します。&amp;nbsp;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;font-size: medium; color: #000000;&quot;&gt;&amp;nbsp;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;font-size: medium; color: #000000;&quot;&gt;&amp;nbsp; 供給側のポート（PC等）が1A上限で設計されている場合、この過大な下流電流と突入電流に耐えきれず、PC側のポートや基板が過電熱によって焼損・発火する事故に直結しかねません。 「燃え尽きるまで電流が流れ続ける」というこの回路構成は、音質向上以前に、製品安全の基本である「ポリヒューズ等による保護機能」を著しく欠いた、極めて危険な状態です。&amp;nbsp;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIHxAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;
&lt;div class=&quot;Article__content&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;div class=&quot;Article__content&quot;&gt;&amp;nbsp;&lt;/div&gt;
&lt;span style=&quot;background-color: #f5f584; color: #000000;&quot;&gt;&lt;span style=&quot;color: #000000;&quot;&gt;　設計者様から「回路を詳しく見ろ」とのご指摘をいただいたおかげで、この「電気回路を理解していない設計、data sheetを読まない設計」の全貌と、購入者の資産（PC等）を物理的に脅かす重大なリスクを事前に察知し、こうして注意喚起を行うことができました。その点においては、設計者様に誠に感謝申し上げます。&lt;/span&gt;&lt;/span&gt;
&lt;div class=&quot;Article__content&quot;&gt;&amp;nbsp;&amp;nbsp;&lt;/div&gt;
&lt;!--TgQPHd|||[]--&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIIBAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;　　&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px #16171a;&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIIBAA&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot; data-copy-service-computed-style=&quot;font-family: Arial, sans-serif, Noto Color Emoji; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(22, 23, 26);&quot;&gt;&lt;span style=&quot;color: #000000;&quot;&gt;該当する基板をお持ちの方、あるいは今後こうした&lt;span style=&quot;background-color: #ffff99;&quot;&gt;「USB電源使用の電子工作キットやオーディオ基板」&lt;/span&gt;を選ばれる方は、奇抜な謳い文句に惑わされず、製品安全の基本（保護機能の有無や規格準拠）が守られているかを今一度ご確認いただき、PC等接続機器を破壊せぬよう十分にご注意ください。&lt;/span&gt;&lt;/div&gt;
&lt;div class=&quot;n6owBd awi2gc&quot; data-sfc-cp=&quot;&quot; data-sfc-root=&quot;ep&quot; data-hveid=&quot;CAAIDhAS&quot; data-complete=&quot;true&quot; data-processed=&quot;true&quot;&gt;&amp;nbsp;&lt;/div&gt;</content:encoded>


<dc:subject>「　境界調律　」「海苔音出基板」</dc:subject>

<dc:creator>takinx</dc:creator>
<dc:date>2026-09-27T08:50:00+09:00</dc:date>
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