|[AMRadio] National PW Dial|
Sara & Wayne Steiner
ssaw at mchsi.com
Tue Mar 13 06:13:02 EST 2007
I found that the variables in the command set series of transmitters are
very close to straight line frequency. Some years ago I built a variable
osc. using one of those caps and a mechcanical digital counter and was in
within less than .5 khz over a 200khz band (160m). I of course had to do
some trial and error plate bending.
Over a 25 khz portion of the band and a small variable osc padder I could be
wayne , N0TE
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