Admiral lugable

[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.

[rca2000]

[QUOTE=Electronic M;3134832]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.

[Jeffhs]

[QUOTE=rca2000;3134837]

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
\

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.

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.

[dieseljeep]

I worked on a lot of them!
An earlier design with a voltage doubler, made in both 17 & 19 inch models. Yours is probably the earliest model of the run. The seemed to make about three years of them, in both sizes.
CRT is most likely a National Video, so how i'll come back is hard to say.

[Electronic M]

[QUOTE=Jeffhs;3134839]

Originally Posted by rca2000

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.

More like under-scan. Its there with an unoccupied channel of static tuned, and I have not seen the characteristic double image of foldover on it.

I've got a handful of brighteners too, but I tend to refrain from installing them unless the screen is too dim for viewing in normal night time room lighting.

[Kevin Kuehn]

I have a similar set lurking around here someplace. The cosmetics on mine are pretty ruff, and I think it's a 19 inch. I was saving it for the CRT.