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As a side, I monitored the voltages on the 1st and 2nd IF tube grids; they both were around -2.4v and did not seem to vary with trimming. I kinda thought that 77 should vary the signal to the IF AVC tube, but perhaps the signal was not strong enough.
I might try a couple of diodes in that tube base, don’t know if I have any Schottky type.....
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RGK20m3 - by RGK20m3 - 01-05-2022, 02:57 PM
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