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Managed to find a decent CRT replacement, and to get the controls (touchy), adjusted pretty well.
I had an annoying audio hum, until I tapped the L16 (Sam's) 2nd sound IF coil 32-4745-2 with my small plastic tuning screwdriver. The sound cleared!
Now, when I slightly wiggle the coil shield, the hum cuts in and out.
I have removed the board (again), and have checked for cold solder joints, etc.
Everything looks clean.
Do these coils have a history of internal intermittents?
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