Rca ctc12 -

[DavGoodlin]

Originally Posted by damen

When it starts blinking, put the service switch to the set up position and check if the high voltage stays up. I've had video output tubes intermittently short bad enough to kill the high voltage.

Good idea, I did not monitor the CRT K-G1-G2 while this occurs. This is equally probable to a boost circuit causing it.

I have replaced almost all the electrolytics and the maroon drops, not expected to solve THIS issue.