[AMPS] abnormallly high plate current

Vic Rosenthal rakefet@rakefet.com
Thu, 06 Jan 2000 07:10:55 -0800


Lane Zeitler wrote:
> 
> Gents,
> For some reason I am getting higher than normal plate current in a single
> 3-500Z amp. 

Lane,

What's the grid current, and how much driving power is it getting?  If you are
driving it harder and getting less output, the tube may be dying.  I had a
similar situation, and it was due to a tired tube.

73,
Vic, K2VCO
Fresno CA

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