I've known about the 15CL100 for years, and have a copy of a schematic, but this is the first time I've seen actual photos and screen shots of that receiver outside of the pic on the ETF website, and other similar pics. Thanks for posting all the info and pics, I really appreciate it! GE's approach to a color set is certainly different from RCA's, and is a great illustration of the history of the art of early receiver engineering and design. The crystal ringing circuit was used in a few other sets later, a Motorola comes to mind. Saved a couple of bucks over a complete oscillator/AFC circuit, I guess.
Kevin
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stromberg6
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