I finally finished the recapping. I've disabled the HV by removing the 6BG6 and 5V4 tubes. I'll also be using a 5AXP4 test CRT.
I slowly cranked up my variac while monitoring B+. The tubes started glowing and B+ rose nicely and I started hearing faint static out of the speaker. I tuned it into channel 6 and heard some distorted sound. I hooked up some rabbit ears and got some clear booming Phil Collins
Time to hook up the HV!
I heard a horrible high pitched squeal as the set warmed up. Some fiddling with the horizontal sync took care of that. Both horizontal and vertical are very touchy, also the contrast control has a huge effect on both the audio and video. I'll have to check the schematic, but I suspect it's altering the gain.
Finally able to lock in on a stable picture
I suspect the focus is bad because this test CRT is self focusing and the focus coil is messing it up. On to the full sized 10FP4...