[Boatanchors] Collins 75A3 crystal calibrator 8R-1

[jbrannig]

When I had an A3, I built a calibrator using the Collins schematic.It was mounted in a box with an octal socket on one end and the appropriate tube socket on the top.The crystal was from Intl and it worked just fine.
Jim 


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-------- Original message --------From: Bill Mellema via Boatanchors <boatanchors at mailman.qth.net> Date: 2/13/17  11:36 AM  (GMT-05:00) To: BoatAnchors QTH <boatanchors at mailman.qth.net>, Nick England <navy.radio at gmail.com>, Brian Harrison <briankn4r at gmail.com>, Ron W8RJL <youngron at verizon.net> Subject: [Boatanchors] Collins 75A3 crystal calibrator 8R-1 
Guys,
I'm trying to find out more information on the 75A3 - 8R-1 crystal calibrator. I can only imagine they are very scarce..wondering what they are selling for if you do find one...
Thanks,
Bill N3WM
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