Another vertical output transformer????

[Zenith26kc20]

Everyone keep you fingers crossed! My 25MC33 is going to get it's FOURTH vertical output transformer tonight! The original shorted around two years ago. Got another Zenith replacement (really a beat up one!) that failed shortly (I did expect that failure from it's looks). A Thordarson from Moyers that went a little over a year. Now another Thordarson is going in. This one is really interesting! It is the only cloth wire of the four. It is also a Zenith! Thordarson covered the Zenith number with black paint!
I've checked all the voltages when the set is running and replaced the 6HE5 just to be safe. From looking at other postings, it looks like Zenith had serious problems with these transformers.
The set is used only on Friday and Saturday night. The second Zenith transformer "exploded" internally according to the transformer rewinder I sent it to. He said he couldn't rewind it and then said "no more vertical output transformers".
Wish me luck!