On Thu, Sep 17, 2009 at 06:41:57AM -0400, Gudguyham@aol.com wrote:
> As a prelude to my next post, I would like to ask this question for the
> benefit of some of the newer members here. What could happen if I am
> driving
> an amplifier with a full 100 watts and suddenly (unaware to me) I lose HV
> on the anode of the tube and I continue to transmit?
If it's a triode, or if it's a tetrode with screen voltage derived from
the plate supply, you're OK. If it's a tetrode and the screen voltage
stays on even after plate HV drops, the screen starts acting like the
plate, which is A (Very) Bad Thing Indeed.
--
Mike Andrews, W5EGO
mikea@mikea.ath.cx
Tired old sysadmin
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