160m: [Collins] Crystals

[Dr. Gerald N. Johnson, electrical engineer]

While the NE-602 would convert, it has limited high end dynamic range
and that can be a limitation on a 160 meter converter. Other IC's or
diode ring mixers can have better performance.

Tentec made a 160 meter converter. Drake made a 160 meter converter if I
recall correctly. I'm sure there were circuits in a few decades of ARRL
handbooks with all the details worked out.

73, Jerry, K0CQ, Technical Advisor to the CRA
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