[Elecraft] HF amp kits
Chris Kantarjiev
cak at dimebank.com
Thu Apr 5 02:25:06 EDT 2007
[warning thread drift]
The Linear Amp kits seem to need a fair amount of drive. I've been
idly thinking about a linear that would allow me to drive it with
my barefoot K2 and get 600-800 watts out for CW.
I've been told that such things were "common" in the 70s. One description
I was given is
two stages, with a pair of 6CL6 pentodes in class A passive grids,
driving a pair of surplus 4CX250Bs in AB1,a very common design.
0.1W in gives 650W out.
which sort of means something to me, but will certainly start many
evenings of study.
If this was "common", it seems that there should be articles. I haven't
had much luck finding one (there's an article from 1959 that uses
a single 4CX250B). So, how about it, you guys who were there then? :-)
73 de chris K6DBG
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