I had the day off work yesterday, and it was drizzly and cool so it was a perfect day to work on vintage TV's! I recapped the power supply and the EC on the vertical output board. I also installed a new CL-90 thermistor. It took quite a while just to remove the cardboard cover on C1: No wonder, I've never seen so much tar used just to hold on the cardboard!
The new caps are so much smaller, I could fit them all in the cans.
I triple checked all my work, and powered up the set with a metered variac. All the filaments lit, but the set was drawing only 1 Amp and there were no other signs of life. A quick checked confirmed no B plus. Although I had checked it, I suspected the circuit breaker. Sure enough, that was the issue. On next power up, I had B plus and the set was drawing about 2.5 Amps. I got a raster and a wild blue light show from the chassis which tuned out to be a defective NOS 12BY7A video output tube. After replacing that, I was able to get stable horizontal and vertical lock and a decent color image.
After a very quick set up, things looked considerably better.
There is clearly a vertical issue and the focus control seemed to have little effect. The set is still full of leaky brown drops and even a couple of paper caps, including one across the AC line
After about 30 minutes I shut it down. The HV cage was much warmer than I would have expected. I think there is still an issue with the HV. Next time I power it up, I'll measure and adjust the HV. Then I'll recap the horizontal and vertical boards and reassess.