Well, last week on the bench tv was playing great, except for some slight horizintal fold over in the picture.
So, I put it in the cabinet, put everything together, hooked up my crummy hd converted box, and, brought it up on variac.
After much fiddling around, I had a nice, bright full picture with horiz. fold over.
I adjusted set. Got box to receive some stations.
I noted ch 3 oscilator on tv needs more tuning.
I decided to try a different horizontal output tube, of the correct no of course.
Started back up on variac.
Just as I was getting to operating voltage, I heard a very loud hum in the speaker, a grunt from power transformer, and, a loud pop out of chassis. I watched as dim video faded to a white dot. I shut it down.
Back to square one.
Bill Cahill