I also had one of those later SF chassis 12" GE B&W's in a woodgrain plastic case. I think it had a click-stop UHF tuner. I used to have a '74 Wells-Gardner built 25" Truetone color hybrid console that had the click-stop tuner. I don't know when click stop UHF tuners were required; but, I've seen sets as early as '73 that had them.
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