[Amps] Old Transmitter designs (was cathode driven/grounded grid magic revealed.)

[Bill, W6WRT]

ORIGINAL MESSAGE:

On Wed, 22 Jul 2009 18:44:53 -0400, Herzog <herzog at frontiernet.net> wrote:

>
>  It is recommended that the driver stage be heavily swamped to
>avoid such load variations.

REPLY:

Very poor advice. A far better method is to provide a resonant circuit in the
input to provide a "flywheel" effect. 

And as I said before, even that is only needed if the tube is biased and driven
so that it draws grid current. 

73, Bill W6WRT