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Audio and Video Talk
The Vintage Audio Section
Any amp geniuses here willing to give advice?
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<blockquote data-quote="Steerpike" data-source="post: 847916" data-attributes="member: 807"><p>Q428 and Q430 are only there to protect the amp from output short circuits (or very severe loads). During normal operation they don't even conduct, so their usual characteristics are very unimportant, and they don't need to be matched in the conventional sense.</p><p></p><p>(I'm thinking this clamping topology was the invention of Harold Black, but I might be attributing it to the wrong designer)</p></blockquote><p></p>
[QUOTE="Steerpike, post: 847916, member: 807"] Q428 and Q430 are only there to protect the amp from output short circuits (or very severe loads). During normal operation they don't even conduct, so their usual characteristics are very unimportant, and they don't need to be matched in the conventional sense. (I'm thinking this clamping topology was the invention of Harold Black, but I might be attributing it to the wrong designer) [/QUOTE]
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Audio and Video Talk
The Vintage Audio Section
Any amp geniuses here willing to give advice?
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