#31
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BTW if the wave appears as a horizontal bar that slowly rolls vertically, then it is likely the Power supply lytics.
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Tom C. Zenith: The quality stays in EVEN after the name falls off! What I want. --> http://www.videokarma.org/showpost.p...62&postcount=4 |
#32
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Usually power supply electrolytics start off waving then as they warm up thermally they work. If the power supply electrolytics are failing after they have been on a while they start to run warm to the touch. Be careful, my RCA CTC-9 almost had it's power transformer burned up by a leaky electrolytic.
I would try subbing a horizontal oscillator tube as heater to cathode leakage can also produce the symptoms you are describing. What signal sources are you using? |
#33
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Quote:
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#34
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Here are a few examples of some of the issues that will happen.
Notice that grey ish line in the middle. Under normal conditions that line is straight and centered. |
#35
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I would recap it and measure resistors whilst performing the recap. You've already found crook caps in the vertical and hor circuits so it's highly likely that there are others just as bad elsewhere in the set. Once that's done you can address any remaining faults.
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Audiokarma |
#36
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That is correct. Some of those mica caps also look suspect. Looks like one paper cap had exploded from being shorted.
I agree with them that say replace all paper caps, and, electrolytics so you will have a trust-worthy set. I also see why the vertical has fold over, more bad caps. The audio caps are always bad. And, I've actually found damaged controls from shorted caps. Bill Cahill
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