Understand your concern Joe. Henry has been producing am amplifier or
two with this tube to this day since it was introduced by Eimac.
"Joe Subich, W8IK/4" wrote:
> > Consider the 3CX1200A7. This IS a 3-1000Z in a ceramic-metal package. A
> > very rugged, instant on, tube.
> The 3CX1200A7 (instant on, reasonable drive/gain, etc.) is certainly an
> interesting tube but I'm concerned that the only commercial user seems
> to be Ameritron and I have my doubts about the long term availability of
> a tube designed for the amateur market that is not getting a lot of use.
> The Ameritron amplifiers seem to have suffered from "marketing redesign"
> according to user reports and the quality of the components used in the
> plate circuit don't seem to be up to heavy duty operation (RTTY contesting,
> ... Joe Subich, W8IK/4 ex-AD8I
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