Quote:
Originally Posted by walterbeers
...In color crts the same thing can happen, only usually just one color is involved, R. B or G
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I never saw a case of intermittent cathode in a color CRT (not saying it hasn't happened, though). But saw oodles of heater-cathode shorts that show up intermittently when tapping the neck. (H-K shorts kill the luma while leaving the chroma intact, since chroma goes in on the grids.)