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Re: Maybe this is what he means .....

Posted by Lew (A) on September 11, 2006 at 07:23:02

In Reply to: Re: Maybe this is what he means ..... posted by Satelliteman on September 11, 2006 at 02:07:21:

The 1K resistor was Ralph's idea a long time ago; he drew the schematic for my amplifiers about 10 years ago, and the 1K resistor is right in there. My amps, which I built in the late 90's, have the 1K resistor. What's novel is the idea of "bypassing" the resistor (or whatever) with a cap. Also, since .86uF is not a standard cap value, I am betting that he meant to write ".68uF", which IS a standard cap value. But I want to hear more from Tubevibb.

As to why this needs to be a 10W resistor, I don't know for sure and won't until I dig up the schematic and think about it. You are quite correct that under steady-state (DC) conditions with no signal applied, there is no voltage dropped across this resistor (I once measured it to satisfy myself), so obviously you don't need a high wattage in that condition. But it may be that under AC conditions, an AC potential can develop, but don't quote me til I look at the schematic. Maybe Tre' knows the answer with no further research necessary on my part.

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