[Amps] When does an GG Amp draw current.

[Paul Baldock <paul@paulbaldock.com>]

My 2 x 3-500Z amp starts to draw a few mA of grid current with about 
1 watt applied. Bias is about 8V.
My home brew GS35B amp  starts to draw a few mA of grid current with 
about 15 watts applied. Bias is about 40V.
Is my GS35B amp behaving as it should? When does an GG Amp start to 
draw grid current? Is it when the peak rf  voltage applied to the 
cathode exceeds the bias voltage?
Thanks

- Paul  KW7Y


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