On Mon, Aug 09, 2010 at 03:22:35PM -0400, Joe Subich, W4TV wrote:
>
> > Just watch the plate voltage drop in a typical amp as you add
> > compression. Unprocessed SSB in a typical amp may show 100 volt drop
> > while heavily processed with compression and clipping might show a 300
> > volt drop.
>
> A 300 V drop in a 2500V supply is less than 1.5% ... that's not even
> in the same league as a 2V drop (11.5V under load) for a 13.8V power
> supply. The IMD in a 100W transceiver on a Gamma supply makes the
> Italian CB amplifiers look good.
Erm ...
300/2500 is 12%, leaving 88% going to the tube.
The same loss on a 13.8V supply is 1.65V, leaving 12.14V.
--
Mike Andrews, W5EGO
mikea@mikea.ath.cx
Tired old sysadmin
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