[Yamamaya42]

That is not how horizontal is adjusted on the set, in fact -45v is not an adjustment at all, but as I indicated, an voltage that shows that the oscillator is running and does not have to be exact, the frequency, timing and waveform there is what matters, and this is set by horz hold and hoz afc.

The ONLY measurements in the area are at the cathode of the HOT, and you do not have the meters to do this, you would need 2 meters that can measure current up to ½ amp, and do both tubes at once, cutting pin 2 from ground and putting a .47 uf cap from pin 2 to ground on both, and then measuring the current across that cap 120ma, both, but since this set does not seem to have a horizontal efficiency coil to adjust, this is not needed on this set.

What ever mistake you did in this, you most likely cremated your damper tube, and it will need to be replaced, it is rather weak and easy to damage, much more easy to hurt than the outputs.