[R-390] Wanted: 14mHz Crystal

Fred Moore fred_moore at usa.net
Sat Jul 4 18:42:57 EDT 2026


Bill (and others needing crystals), 

1.  I do have one from an R-390 (not A) oscillator unit.  Fair Radio was
selling these for $20 near their end, plus shipping.  Payment by check.

2.  But other crystals will fail from time to time.  So I went on
Digikey.com... They have a bunch of crystals, mostly SMD types.  These could
be put inside the original holder.  Even MHz are pretty common there.  What
about drive levels?  Is a tube osc too much drive for this little thing? 
There is a datasheet for it on this page.  So this approach might help others
in the future. 

Here is one by CTS for $0.72: 
https://www.digikey.com/en/products/detail/cts-frequency-controls/406C35B14M00000/604558

 So this approach might help others in the future. 

-Fred 

------ Original Message ------
Received: Sat, 04 Jul 2026 05:22:44 PM GMT
From: Bill Cotter via R-390 <r-390 at mailman.qth.net>
To: r-390 at mailman.qth.net
Subject: [R-390] Wanted:  14mHz Crystal

Happy July 4th!

Does anyone have a donor crystal bank with a 14mHz crystal they 
would be willing to part with? Please advise with price + shipping 
to my QTH (below).

Thanks es 73 Bill N4LG




------------------------------------------------------------
Bill Cotter, N4LG              E-mail: n4lg at qx.net
173 Carolyn Lane               Cell: (859) 552-7481
Nicholasville, KY 40356-9340 https://www.qrz.com/db/n4lg

ARCI #9878, QRPl #1646, QCWA #29393, FISTS #4535, NAQCC 7470
------------------------------------------------------------

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