Joe,
If the switch has not been abused, cleaning the contacts should
restore it to 100%. A little bit of Caig DeOxit followed by
exercising the switch will probably remove any built up oxidation.
The RF Output issue could be soft final tubes or the driver tube.
Which band you're getting 65 W
I'd like to measure the total frequency drift/shift over time from cold
start on an R-4A. Since I have a stable HF TCXO source I'd like to do
something like the following:
1. Connect the stable source to the receiver's antenna input ;
2. Feed the audio output of the receiver into my
Spectran does this function..very easy to use but not sure if it will do
the graphical solution you want.
SpectrumLab does precisely that ..will analyze and create a file of
output data. We use it in the Frequency Measurement Test environment.
Both are shareware/freeware written by amateur
Joe,
On the TX power level. Check to make sure you have correct voltages on the
AC4. Does the AC4 work well on another rig? Also have a look at your bias
setting. Too much toward Class A lowers your output. Then of course check
the output at 10M vs 80M. The tubes tend to soften earlier on
This is a question for those of you who have a Drake 2B *WITH* the red (or
pink, or white) button on the front plate to make it easy to reposition
the plate when using a calibrator.
How far from the right edge and bottom edge is the button located? I
plan to install one..
Thanks Everyone for your responses and information. Mr. Frost, I
just may want to buy one of those switches from you. Do you have any
idea on a proper way to mount it? The original is riveted into the
chassis, so I'm a little concerned about how the case will fit.
As far as the tx is
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