SB 200

[Mark Graalman WB8JKR]

  Hi John,

  I would use Cetron if you can find them. BUT I have
difficulty believing the finals are bad if you can
get full output on the other bands, emission is
emission. I'd look for an input SWR problem, can
you drive to full plate current on 10 meters? Does
the grid current look comparable to what it is on the
lower bands?


73,  Mark  WB8JKR


On Thu, 18 Oct 2001 17:57:39 EDT John Barkow <KD6PT at AOL.COM> writes:
> Hi Gang:  I am thinking about putting new finals in my Sb 200 and
> note that
> they are gertting haarder to find.  I have installed the new PS
> board and
> soft key and the amp is working fine but output is low on 10
> meters--only
> about 200 watts while the other  bands run aboutg 450 to 500 watts.
> Since
> these tubes are mounted horizonta. which brand of replacements
> shouldl I use
> and where are they available?  Thanks,  John Kd6pt
>
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