[AMPS] SB1000 parasite question for Tom and Rich

[rakefet@rakefet.com (Vic Rosenthal)]

Tom Rauch wrote:
> 
> > I just got a mail from a SB1000 owner who gets the normal 750 -900 watts
> > out with his old used tube. But wíth two different new EIMAC tubes he only
> > gets around 200 -250 watts out and both tubes tubes get red.
> 
> Sounds like bad tubes.

I agree, I've seen exactly this in an AL80B whose 3-500Z had a grid/cathode
short.

73,
Vic, K2VCO
Fresno CA

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