[Amps] Series screen gate design help

[Vic Rosenthal]

On 4/14/2010 5:54 PM, Radio WC6W wrote:

> But why?
>
> If you're running Class C, with proper grid bias in the absence of drive, the plate&
> screen currents will be essentially zero.
>
> The ol' clamp tube scheme was used with "Linear" amplifiers.

If I bias the tube for class C, then the keying envelope will get very sharp. It would be 
a click generator.

What I'm thinking about now is having just enough fixed bias to barely cut the tube off 
(about 75V, I think) and have the rest come from the drop across a resistor in the grid 
circuit. Then maybe the bias will rise along with the drive more smoothly.
-- 
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco/