As you can see, the original deflection circuit was a non-player.
Fortunately, before I changed any moveable part connected to the CRT I indexed the position on the chassis or on the CRT and took many photos. In the original configuration it was working properly (I was watching the set in 1969 when the picture went away) and it hadn’t been touched since.
These are photos from 5 years ago.
The CRT “works:”
There is high voltage:
I’ll have to look into fabricating a high voltage probe.
I would like to run the CRT test with the Beltron. I have no other CRT to play with at this time. The Beltron is putting out 15 filament volts with no load. I think that, if I hook up the CRT, the worst thing that can happen is failure of the voltage rheostat which would put 15 volts across the 6.3V tube. Is 15 filament volts likely to damage the CRT? If not, then I’ll try the test and then start reassembling the set.