Thank you gentlemen for the help. I had only registered and got in there one
time a few weeks ago and wasn't sure how it worked and was never able to get in
again. I look forward to seeing the posts every day and learning something
from you guys. I've been around a long time, but I am not a
Bob,
I am going to go out on a limb and make a guess. I believe that in the later
days, the tube manufactures did what I call joining of tube models. That is
the 6JB6 and other tubes with similar/equal specs were produced and labeled for
which ever model was being made that day. So it might
Bob -
I'm away from home, and not checking the list as often as usual. It's
pretty quiet because of the holidays I guess.
Here is a comparison of the Drake receivers that I wrote up a while ago.
The 2-B is an outstanding CW receiver, the dial calibration is a little
coarse by today's
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I found the problem!
I was thinking RF and ALC when the problem was really AF. I replaced V9 with a
cheap Chinese 12AX7A and all is well. I learned that tune mode uses the mic amp
as an audio oscillator in tune mode (I read that on Drakelist). Apparently the
tube got weak enough it would only
Am having difficulty running our Drake T4XC into a QRO Technologies DX 2500
Linear Amp.
Here is a description of the problem, things we've tried so far, and an appeal
for your ideas and input.
The DX 2500 amp requires very little drive. Preferably, we want to run 500 to
800 watts PEP out of
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