[compucat]

I was watching my Zenith tonight for about two and a half hours with no problems and I leave the room for a moment and I hear this loud hissing sound. I check on the set to find no picture, and a slight burning smell. I pop the back off the set, open the HV cage and the flyback is hot but I can keep my finger on it. I turn the set back on and find the high voltage rectifier red plating. I have not swapped any tubes as it is late but I hope it is not the flyback. I restored this set eleven years ago, replacing all the sweep and High Voltage tubes in the process. I set the cathode current per the Sams and have never had high voltage problems with this set. Can a shorted HV rectifier cause the red plating or might I be looking at a bad flyback?