Roger (sub1) wrote:
>> 4CX1000A?
>
> 4. It uses an oddball socket
I once built a successful 160-10m amp around a 4CX1000A with no
socket at all. OK, it took 10 minutes to change out the tube, but
you rarely if ever have to replace one.
> Maximum frequency for full power is only 110 MHz, but I believe
> it will operate at 144-147 MHz at reduced ratings and a pair in PP will
> easily run more than the legal limit.
I ran a single 4CX1000A at legal limit on 144 MHz for years, never
had any issue at all with it. These tubes have also been used at 222
MHz, though one doesn't see that too often.
73
--
Paul, N1BUG
Aurora Sentry: http://www.aurorasentry.com
Piscataquis ARC: http://www.k1pq.org
N1BUG: http://www.n1bug.com
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