I changed the shunt tube with one that gives better emissions, and the HV did go up slighty, and now is at 24kv, still with the HV control maxed out...
The big green 7watt power resistor (in middle of image slightly upper right) that is 13k (R134) measures around 17k...
I did a digikey and mouser search for one.. And both don't have power resistors in this spec and wattage..
Now for the Vertical issue.. I replaced the 2.7meg resistor the other day, and it made the vertical slightly better, and now doesn't drift like it did.. Today I replaced the 2.2 meg resistor and another one that was a bit high in spec and also replaced the vert tube, and it didn't do much difference.. When I replaced all resistors today all i noticed that centering was off, and so I re positioned the centering control, and also when I replaced the tube, again all it did was throw off the centering a little bit to where I needed to position the control again.. I get full vertical.. And that's with the Vert height control at 100% maxed out.. But should I have more range? Shouldn't the vert control be around the middle for the maximum height instead of all the way up?