Quote:
Originally Posted by Dubis7
Also, I was a little confused on some of the information regarding my 1G3GT HV rectifier. If I'm understanding it correctly, that tube is not part of the series filament string, and is powered directly by the flyback transformer. I verified that my old 1G3GT was bad by testing for continuity between pins 2 and 7, which I believe is where the filament is. Those two points tested no continuity, and further testing on a tube tester also showed no life.
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Very few tube testers check HV rectifiers well. They don't apply high enough voltage and the tubes can't pass very much current even when good. The filaments are higher resistance than normal because they run on low voltage and draw little current.