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Originally Posted by Tubejunke
...I powered the set today in a dark room and noticed a fairly bright blue glow inside the HV rectifier. I'm not sure if that is normal or not.
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Definitely not normal. If the glow uniformly fills the entire space inside the tube, it indicates a gassy condition. And the tube will usually run abnormally hot.
Quote:
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I was thinking that HV rectifiers are normally just dark for the most part. Perhaps the rectifier tube is the problem. I have tested it, but not swapped it. And as we all know tube testers are not testing under real world conditions by any stretch.
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In the case of a HV rect swapping with a known good one is the only real test.