|[AMRadio] VFO for 20V-3|
bmaser at tampabay.rr.com
Thu Jan 6 20:58:32 EST 2005
When I got my 20V-3 the coil sets had already been modified for 75M by
WA5MOE. He followed the directions in the conversion manual "published" by
Bill Carns, N7OTQ. I have the manual and it says to remove the existing
windings and replace with 22 turns of #24 silk covered coil wire. I don't
think that silk covering is necessary. Plain old Formvar coated solid
copper wire is fine. Do you have Bill's manual? I think he would send you
one if you asked.
Tnx for your input on the VFO.
----- Original Message -----
From: "David Knepper" <cra at floodcity.net>
To: "Bob Maser" <bmaser at tampabay.rr.com>
Sent: Thursday, January 06, 2005 7:45 PM
Subject: Re: [AMRadio] VFO for 20V-3
> Bob, I, too, own a 20V-3 and would be interested in knowing how you
> the two shielded coils to resonate on 75 meters. Will these same coils
> resonate on 160 meters.
> I finally, after much trial and error, got the buffer and driver coils to
> work on 160 meters. I had to remove wire from the coils.
> For a PTO,. I would recommend inserting it into the plate of the
> tube through a capacitor.
> You would pull out the oscillator tube, of course. Perhaps, a Heathkit
> VFO - being more common - would work.
> Dave, W3ST
> Publisher of the Collins Journal
> Secretary to the Collins Radio Association
> Nets: 3805 Khz, Monday/Wednesdays 8 PM EDST
> 14250 Khz Saturday, 12 Noon EDST
> ----- Original Message -----
> From: "Bob Maser" <>
> To: "AMRadio" <amradio at mailman.qth.net>
> Sent: Thursday, January 06, 2005 9:37 PM
> Subject: [AMRadio] VFO for 20V-3
>> I am nearing completion of my 20V-3 for 75M and was wondering what VFO's
>> available that easily interface with the 20V-3. I was thinking of a
>> Meissner but I can still remember its nick name the Signal Drifter when I
>> used one with a pair of 813's back in 1956. I would appreciate the
>> Bob W6TR
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