Yes John
It has sparked my interest also. Actually I have been wanting to get the old
160 m receiver going agn. The one with the 200kc mech digital dial.
wayne
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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
in the Amateur Service
Subject: Re: [AMRadio] National PW Dial
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
Does anyone have any information on getting a PW dial { 0 to 500 units)
to directly correspond to 0 - 500 Khz. in a VFO circuit? I have the National
PW Condensor, a PW dial with a 155 pF. air variable. Thanks, Byron
WA5THJ.
It might be possible, by carefully pruning the coil, and adjusting
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- Original Message -
From: D. Chester [EMAIL PROTECTED]
To: amradio@mailman.qth.net
Sent: Monday, March 12, 2007 1:06 PM
Subject: Re: [AMRadio] National PW Dial
Does anyone have any information on getting a PW dial { 0 to 500
units) to directly
@mailman.qth.net
Subject: [AMRadio] National PW Dial
Hello-
Does anyone have any information on getting a PW dial { 0
to 500 units) to directly correspond to 0 - 500 Khz. in a VFO
circuit? I have the National PW Condensor, a PW dial with a
155 pF. air variable. Thanks, Byron WA5THJ
I was able to get another tuning capacitor to work pretty close to the
desired 1-500KC span once on the linier dial by making the tuning capacitor
as a small part of the total capacitance of the circuit and by placing the
tuning capacitor across only a portion of the coil and the larger part of
Hello-
Does anyone have any information on getting a PW dial { 0 to 500 units) to
directly correspond to 0 - 500 Khz. in a VFO circuit? I have the National PW
Condensor, a PW dial with a 155 pF. air variable. Thanks, Byron WA5THJ.
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