Thanks, Peter. That was a real good synopsis.
There was a sync detector article in QST by a Finnish ham using
NE602 and NE604 chips. Comm Qtrly had an article using a Motorola
MC13022 that was intended as a retrofit into older radios. The
author had used it in a Hallicrafters with a 455 kc IF.
There is also a "quasi-sync" detector, where the signal you are
listening to is amplified and used as the BFO signal as well as
the IF signal in a product detector. This works best with stronger
signals.
I've listened to W1ZN's T-T 1254 and it sounds great just the way
it is, but it sure is hard not to think about making "improvements".
73,
Tom W1EAT
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