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I forgot to mention that after getting the HV back up to where it should be, the corona sound got louder and I do smell ozone. It doesn't happen with the coffee can off though. It looks like there is a discharge between the cap of the 1B3 and the can, based on burn marks on the paint. The cap seems smooth, but I guess I should try polishing it more.
About the yoke rotation, the yoke is in a steel cradle that is half a tube. A solenoidal magnet will rotate the scan. Since the focus magnet was very close to this it may have magnetized it and it could be acting like a solenoidal magnet. I'll have to try degaussing it the next time I have the CRT out.
The vertical centering magnet assembly was falling apart from age, so I made a new holder for it out of fish paper. The red paint on the ring indicates the North pole of the magnet.
The disk on the left is the original one.
John
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