Is this CTC-16F flyback a goner?

[Ralph S]

I should point out that the set was running on a variac followed by a voltmeter and an ammeter. Just prior to the failure the voltage was 115 vac and the amps were at 2.8. From this standpoint there was nothing out of the ordinary.

On the other hand (prior to the failure) I had just changed the convergence assembly from one that was physically falling apart to one that was mechanically much better. The first one had the early selenium double diodes and the other had the newer block diodes. There may have been a parts failure on the convergence board which could have disturbed the "U" line heading back to the hor. osc. I'll have to check this. (The set ran for about 15 minutes prior to failure with the new assembly.)

Another thing: Trying to rough the newer convergence assembly into static convergence, I had the 3-dot pattern up, so the screen was mostly black. But the dots seemed larger than usual and I went to check focus. The focus control did not seem to do much.... Could this have been a symptom of pending failure?

I hopes this helps you in your sleuthing.