[Dubis7]

Okay, I finally had a chance to do some tests.

I have a video coming. It's a bit long since I tried to document everything I could.

Actually there's two videos, and I may have confirmed my issue. The first has the ringing, some sparking, and shows the "tape artifacts" that I mentioned before. In the second, I removed the HV rectifier, and the sparking etc went away. Obviously some of that will be because there's no power to the tube, but the ringing was definitely around the flyback and that also disappeared when I removed the HV rectifier, so I'm leaning towards that.

One other mystery: Should the HV rectifier tube hold static electricity? I removed it from the tv while wearing gloves (the set was turned off, but I didn't want to risk anything) and put it aside. Later, I went to pick it up without gloves and it sparked when I touched it. Could that be confirmation?