Quote:
Originally Posted by bandersen
However, I did notice a strange issue. As I decreased the brightness, it dimmed more on the sides than the center.
You can get it down to where there is just a think strip visible in the middle.
I'm thinking the HV doorknob cap way be bad or there is some ripple in the power supply. There are still a few old electrolytics left. I'l tr replacing them first.
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I believe that there is a bad electrolytic capacitor for the video output cathode bias that is bad. i've seen this before. if the doorknob capacitor is failing, there would be HV issues, but from what i see of the pics, this is more like a problem with the video output stages. i would venture to say that a total recap of the set will fix the problem.