Leave it Class B, no body will be able to tell the power difference but
others on the band will be happier. 813's run very well at 2500V with a
little bit of air.
Carl
KM1H
----- Original Message -----
From: "Steve Flood" <kk7uv@bresnan.net>
To: <amps@contesting.com>
Sent: Monday, February 25, 2008 9:50 PM
Subject: [Amps] CW & SSB amp
> I'm planning a 3x813 amp in grounded-grid. Primary use will be for
> 160-80-40-20 CW (Class C). What must I do if I occasionally wish to run
> the amp in linear SSB service (Class B or AB)? Am I understanding
> correctly from my reading that I need to add an adjustable grid bias
> voltage control for adjusting cutoff, and an adjustable plate voltage
> control (variac?). It seems like some amps use one way or the other but
> not both.
>
> steve
> kk7uv
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