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One major problem with that genre of GE and Admiral el cheapo sets was somebody jamming the back on without lining up the hole for the H hold shaft, ripping the coil halfway out of the board.
Another was the H oscillator failing to start since it runs off B Boost. If there's not enough juice there to start it, then Boost never comes up. The fix was to run a diode from B+ up to the Boost source, so the osc. starts on B+. When Boost comes up, the diode is reverse-biased so it's essentially out of circuit. Dunno if this particular set would have that quirk or not.
Last edited by old_coot88; 12-11-2025 at 02:07 PM.
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12-10-2025, 11:15 PM
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