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well the 7jp4 that i have was rebuilt and it started out perfect besides having the classic burn in the center but now putting it on a working chassis the brightness wont shut the image down and dont know why since it was in the closet for a month and a half then took it out to try on another chassis and thats what im left with some sort of problem with it as im told it could be a heater cathode short, how this could happen from not being used i dont know and not having and crt tester for this tube to see or get rid of a possible removable short, the tube is useless now.
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06-02-2015, 07:11 PM
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