As Don said, I don't think you could get a cap to do that, maybe a pto inductor would work, they seem to be able to track turns to frequency, although its over many turns, not just 180 degrees, and it has a special wound coil I think.
I am no good at marking frequencies on a dial so they look nice, and things can drift, circuit changes may eliminate any and all accuracy, so I went to a digital readout (freq counter off the local osc) on the receivers. I have not figured out a way to make that work with a VFO, as its off during receive. A spot switch that turns on the oscillator tube would work, but the display would be blank during receive unless its on. If its on, RF will get into the receivers.... Brett N2DTS > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Byron Tatum > Sent: Sunday, March 11, 2007 10:20 PM > To: [email protected] > 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. > ______________________________________________________________ > AMRadio mailing list > List Home: http://mailman.qth.net/mailman/listinfo/amradio > Partner Website: http://www.amfone.net > Help: http://mailman.qth.net/mmfaq.html > Post: mailto:[email protected] > To unsubscribe, send an email to [EMAIL PROTECTED] with > the word unsubscribe in the message body. > ______________________________________________________________ AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:[email protected] To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
