I checked out everything Phil mentioned, including the sync filter circuit, and I took all the components out of the circuit for testing. Everything checked out pretty close to the specified values. I reassembled it all and, just for grins, replaced the horiz oscillator 6SNGT with a spare NOS tube. This is what I got:
You're looking at Lee J. Cobb. Or maybe it's Henry Fonda? Well, it's one of those 12 Angry Men.
This is better than the previous picture, BUT…then it started going out of focus, and randomly flickering into focus every few seconds. And now it's remaining unfocusable.
Is there any point in fooling with the alignment without equipment or knowledge?
Gee, I wish Mr. Grimes was here.
- Winky