I found those 4.224 Crystal oscillators (ex equipment) on eBay .
Divide 4224 by 32 (first 8 and then make the quadrature signals), and the LO frequency ends up on 132 kHz. Not bad for a 136 kHz SDR.
Vintage Audio Restoration: Glue, Fusible Resistors, and Relays
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*This guy is restoring VINTAGE audio gear. It is definitely younger than
the Boatanchors we usually work on, but it is a lot older than more recent
gea...
20 hours ago
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