Re: Unknown Radio
FM performance is actually pretty good on my example, with nice clean sound. I've never tried tracing out that part of the circuit though.
Squelch controls were common on these, and they do sort-of work, but they aren't much use.
Overall the electronic design is very conservative, with standard circuits used throughout. It's a pity about the "sheep in wolf's clothing" styling and marketing in a way, as they are perfectly usable radios despite people tending to view them as a joke. I'm sure lots of kids had fun exploring SW with them in the 70s.
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