"Allen McBroom" wrote in message
. 97.132...
I've had an old Hallicrafter's S-108 since the early 70's, and trying
to tell what freq I'm on is impossible. Does anyone know of a method for
installing a crystal oscillator on this old tube rcvr, or some other
method
of acurately determining which frequency the radio is receiving at the
moment?

The old classic way was a 100KC crystal calibrator.

More modern displays sample the VFO, add in the IF and display the count.

Many thanks for the help!

--
Allen McBroom
www.NPSTKD.com
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