On Mon, 09 Nov 2009 11:02:44 -0500, "David C. Hallam" <dhallam@rapidsys.com>
wrote:
>
>Isn't it also true that in a grid driven amplifier, the cathode is
>connected to ground and the only B- connection to ground is through the
>plate current meter. This is done so the plate current meter isn't also
>reading screen current.
Correct. When B- is connected directly to ground there is no need (or place) for
the clamping diode under discussion. It is only needed in GG (cathode driven)
amps where the B- is floating with respect to ground.
>
>In my amplifiers, volt meters are located in the power supply cabinet
>and behind a plastic window.
Good enough.
73, Bill W6WRT
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps
|