Quote:
Originally Posted by old_coot88
Yikes! NO, nein, nyet! Not until alignment is absolutely determined to be the cause of the problem. Undertaking a video IF alignment requires a sweep generator and scope, and a thorough understanding of the procedure.
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Relax, I don't do alignments on my own
. I am not yet at that level of skill and I know it. There is a local shop that I take the set to and he walks me through every step of the way. The last set I did I wouldn't have thought it needed alignment, but I was shocked how much better the picture looked afterwards. The alignment will be the last step on this set. I have to have everything else nailed down tight first.
Quote:
Originally Posted by Eric H
It has a loose connection somewhere, possibly in that repaired Ion Trap.
It could also be a flaky connection at a tube socket.
You need to start poking around with a wood or plastic stick and see if you can isolate it.
Bad Mica caps in the sweep circuit are also a possibility but I wouldn't think tapping would affect them much.
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I'll get tapping as soon as I can
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Quote:
Originally Posted by old_coot88
From your account and from the video, the first thought is a H-K (heater-cathode) short in the CRT. Does the CRT heater have a dedicated 'floating' 6V winding, or does it run off the main heater supply?
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It runs from the main heater supply. One thing I don't quite understand is the schematic looks like the heater and cathode are tied together. Wouldn't that would mean the heater and cathode are constantly shorted? What am I missing?
