[Zenith26kc20]

A few months ago I took the CTC-9 to Mississippi to replace the Zenith roundie for a while. It wasn't long till the 'smell of death" started to come out while it was playing. I pulled the chassis and reconnected it outside the cabinet and after a short while the smell appeared to be the power transformer. I had no time to work on it then so it sat until a few weeks ago. I got curious and pulled the B+ fuse and plugged it in. It sat with the filaments on for a while and the transformer got luke warm after about an hour. I actually forgot about it as I was working around the place and late that night I saw it lit in the dining room. The transformer was still just luke warm. Fast forward to last weekend. I brought another transformer set up to do B+ adjusted by the variac at 385 volts connected to "C2" with the B+ fuse still missing. It came right up, bright snowy screen. I hooked a converter box up to it and played it for about 9 hours. After a quick setup I was very happy with the picture!
Now I'm wondering if the set has a leaky silicon rectifer in the doubler. I did see a slight ripple in the picture awhile back but none this weekend. I remember a preamplifier years ago where one diode in a bridge went slightly leaky and killed the power transformer. I replaced the transformer and it still overheated. It took some doing to find the leaky silicon rectifier but once found the transformer ran at it's normal temperature (too hot for me but the manufacturer said that was normal)
My question is, how many of you have found a slightly leaky silicon rectifier? Except for that one I have never found another. They all have been dead shorts.
Next time I'm in Mississippi I plan to check/substitute the diodes and see what happens!