Well, I just spent quite a bit of time cleaning the grime and filth out of it. I didn't use a work light so it took me some time to realize I had gotten through the dirt and was removing aquadag.
I didn't think that stuff would come off with glass cleaner and paper towel.
The CRT checks okay except for the life test. I hooked it up to cable, makes a fantastic pic with the brightness and contrast high enough. Going to try some cathode cooking. There's quite a bit of noise from the HV area after it's been on for a few minutes, got to try to pinpoint that. Pincushion needs adjustment, not sure how to do that.