I swapped out the 6SN7 hor. oscillator and tried another 6BG6. That helped. I also replaced the 47 ohm 6BG6 grid resistor which had drifted up to about 58. That helped too.
Then I tested the CRT. Emissions are OK, but the life test is weak and I had no cutoff control with bias at -52v. If I dropped it to -36v, I got some response when rotating the cutoff control but still not right. So I used the rejuv. and auto-restore functions as indicated. That helped, but the cutoff is still weak.
I'd try swapping out the CRT, but someone did a sloppy base repair and I can't slide it through the yoke, etc. without filing it down
At any rate, here's where I'm at. The picture is brighter and the bandwidth looks good. However, I have some horizontal tearing. I guess I'll do some more checking of the sync and horizontal circuits.
