[QUOTE=rca2000;3134837]
Quote:
Originally Posted by Electronic M
It is watchable in daylight, but I've seen brighter. It could be a weak CRT or weak HV or bad gun bias.....I won't know until I pull the back and get going.[/QUOTE
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And with that much foldover....I would almost say for SURE...you have some bad caps in the vertical and/or Power supply. If the B+ is low...it WILL reduce brightness and pix quality.
I have a whole BOX of brighteners....I recently acquired at an auction for little....BTW. One I am SURE would fit your tube....IF it needs it.
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I'm not sure that's foldover in the picture. It could be a 16:9 image on a 4:3 CRT, which of course won't fill the screen. Any TV designed for the old 4:3 aspect ratio would display the same thing. Adjusting the vertical height and linearity controls won't help; all that would do would be to push the black "letterbox" bars behind the CRT mask, but you would still have the same 16:9 image on a 45+-year-old 4:3 tube. Replacing the capacitors in the vertical deflection circuits is a good idea in a TV of this vintage (looks like early to mid sixties), but again, if the video signal being fed to the CRT is 16:9 aspect ratio, it will not fill the screen--even if the vertical circuits are at their peak.