[AMRadio] Negative Loading circuits - good, bad, or ?


W7QHO at aol.com W7QHO at aol.com
Wed Jan 11 12:55:22 EST 2006


In a message dated 1/11/06 5:26:15 AM, Brett.gazdzinski at mci.com writes:


> The 3 diode circuit is supposed to prevent the plate voltage
> from going to zero. I use variacs on the power supply so I can set
> the point at which the circuit starts working, and no matter if I
> set it to 95, 90, or 85% I get splatter if the audio would exceed
> 100% negative, so the circuit seems to do no good.
> 

Brett,

What circuit are you using?   The ones I referenced don't call for variacs or 
auxiliary power supplies.

Dennis D. W7QHO
Glendale, CA



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