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In Reply to: RE: Audio on the bias posted by Michael Samra on April 25, 2015 at 09:49:12:
"it makes you wonder how much of the audio signal may [be] getting filtered out by that cap when it's good [and with a large enough value to have a low reactance down to the lowest frequency of interest WRT the AC signal]."None. The better the cap the more it acts like a piece of wire and the grid resistor will act like it IS grounded.
When the cap is bad, or it's reactance is too high, then the signal to the grid of the tube will be altered by the cap. Not the other way around.
Tre'
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Edits: 04/26/15
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- RE: Audio on the bias - Tre' 20:28:08 04/25/15 (0)