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Old 10-05-2009, 03:10 PM
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jr_tech jr_tech is offline
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My understanding is that grid emission is caused by evaporated barium from the cathode ending up on the inside of the grid cup, where it can become an emission source, when the grid reaches a certain temperature. Higher than normal cathode temperature can cause the evaporation of the barium as well as contribute to a hotter than normal grid cup temperature. Is the crt heater voltage running high in this set?

jr
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