True, but the rig had a pair of 304TH's in it before, and is
capable of running [EMAIL PROTECTED] CCS on both the modulator and PA HV
supplies (separate and individually adjustable from 0-4000V), so
I want to preserve the maker's intent by not downsizing the
modulator tubes. The modulation tran
It's to drive the screen grids, so since they run at 500VDC or
more in AB1, it could reasonably take 1000V G2 to G2 to fully
bring each tube to peak plate current. I think I read that the
"120W 807's" needed about 400V G2 to G2.
Patrick
--
I just don't see a pair of ANYTHING as needing 1000 g
Bob,
I agree, and although the unltralinears do sound good, I think
that cathode feedback cures more sins of the output transformer,
and does not rob power like the screen grid ultralinear setups
seem to. it gets its extra voltage from the power supply and the
tubes handle the extra current w
What you have in mind is probably the best idea. I'm too am not
sure what is meant by "Crappy Antenna".
Tuning an 80 meter dipole fed with coax on 40 meters is a definite
"NoNo" because the antenna will represent many thousands of ohms Z to the
coax and depending on the length o
Don,
What kind of "crappy" antennas are you using, i.e., doublets fed with coax,
open wire lines, etc., or end-fed wires? Or, some combination of types maybe?
Rather that building up a bunch of tuners you might consider putting your
efforts into erecting a set of antennas that all worked
As most of you know, I am a long time BA collector and inexperienced operator.
I am getting there. But it's a learning process .
I have the shack structured (in the loosest sense of the word...) into a number
of stations (20-25 with about 10 in actual operation). These mostly consist of
a trans
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