[Boatanchors] Amp Question

[Vic Rosenthal]

msix at nmia.com wrote:

> If one wanted to put idling bias on the grids, wouldn't they need to be
> off ground for DC?

No, because the bias is a grid-cathode potential, and the cathode doesn't need 
to be directly grounded.  It's common practice, for example, to add a few volts 
of bias to a grounded grid amplifier by putting a zener diode in series with the 
cathode.

-- 
73,
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco