Mighty Monarch of The Air

[roundscreen]

If the door knob cap and other parts in the high voltage circuit check good, I would look to see if the horz osc is way off frequency. It is possible that the fly back is sending too much voltage into the 1x2 tube and over dosing the tube.
Do you have a hi voltage probe? If you do, Check and see it the hv is way to high. Another check may be to see if the crt is your problem. Put the anode connector in a plastic or glass cup, Fire up the set and see if the problem goes away. Btw, Nice set you have there. You have done a good job on it.
Ed