The manual on page 72 states .5 Amps, 2000V, and Ig of 100-200mA. This is with
the SSB/CW switch is in the CW position (lower plate voltage) resulting in
1000W INPUT, the legal limit at the time the SB-220 was introduced. The manual
goes on to give tuning instructions for SSB when amp is placed in SSB position.
I have used the SB-220 but almost always in SSB position for SSB or CW. 1200W
out is about maximum I had read on the BIRD wattmeter on CW, but do not do a
long key down. And I never used it on RTTY.
Arne N7KA
-------------- Original message --------------
From: Lee Buller <k0wa@swbell.net>
>
>
> If I remember correctly, the manual says drive it to 500 ma. That is it. I've
> seen guys drive it to 600 ma in SSB mode (higher plate voltage). As everyone
> said here....it really was not designed to be what you want it to be a 1.5 KW
> amp.
>
> Now, here is a comment that I think will draw some ire from people....I never
> liked the amp because of one factor....it seemed to generate a lot of TVI.
> Why?
> Dunno. To many factors....poor TV, poort cable TV, etc....but once I got a
> different amp...all that seemed to quit.
>
> Lee - K0WA
>
>
> In our day and age it seems that Common Sense is in short supply. If you
> don't
> have any Common Sense - get some Common Sense and use it. If you can't find
> any
> Common Sense, ask for help from somebody who has some Common Sense. Is Common
> Sense divine?
>
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