Should i bother restoring a zenith?

[old_coot88]

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.

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.

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.

In the case of a HV rect swapping with a known good one is the only real test.