Quote:
Originally Posted by old_coot88
I believe you mentioned the h.osc tube (6CG7) is NOS. But it still could be borderline weak, causing the long lag to lock in.
Perhaps one of the kindly souls here could send you a known-good-in-H.osc-service 6CG7.
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There's a 'quick & dirty' test that old techies used a lot in the field for this kinda problem.
Have the set warmed up and everything locked in. Turn the set off for about 7 seconds, and then back on. It should come on with the horiz fully locked in. If it comes on with lines and there's a delay to lock in, it's a sure sign the osc. tube is borderline.
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If I try that on my CT-100, the horizontal comes up back in sync ...
but with horrendous ringing and distortion in the left part of the screen.
It stays that way forever, or at least a long as I dared leave it on
being afraid of some a meltdown in the flyback.
And it won't work right unless the set is left of for at least 10 minutes,
when it comes up perfectly normally.