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Old 08-07-2003, 10:50 PM
Rob Rob is offline
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Join Date: Jun 2002
Posts: 776
carmine,

A circuit component like a cathode bypass cap on the vert output tube could be shorted causing no negative grid bias. This causes grid current to flow and can drive a grid incandescent which will make the tube gassy (blue glow inside between the elements, not on the inside of the glass) and also ruin it. Just an idea. You might be ruining every good tube you stick in that socket.

Rob
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