Quote:
Originally Posted by miniman82
To me it looks like a pair of bars on screen at one time travelling up through the pisture, but the power supply has no ripple so I'm not sure what to think. I've already subbed every tube in the tuner/IF and even the first video (6CL6), nothing made an improvement.
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I am still not clear about the hum frequency on the screen. The distiction is important because 60Hz points to a heater cathode problem and the 120Hz points to a power supply problem.
Is it possible for you to post a picture or two of the screen with the hum problem?