[DavGoodlin]

One more issue with the vertical sweep needs fixed before we wrap up but the convergence has been successfully repaired. I actually had a parts chassis to pull a R+G vert convergence coil from as the original was literally melted from excess current due to open rectifiers. Somebody was all over this set trying to get it converged judging by the missing slug and other two spun almost out of the coils.

Lingering issue- I cannot seem to get linear vertical sweep without stretching out the bottom or top. Centering strings are missing from the yoke. Trying both 6HE5/6JB5 and 6BA11 tubes of course made little difference. Like Bob's Motorola color showing an adaptation of SNL's coneheads- LOL

Voltages indicated on the schematic were very close, with plenty of variation via adjustment of height and linearity. Resistors are not suspect and output tube cathode bypass cap has been replaced, so I'm looking at four mylar caps and possibly the integrator (wave shaping) couplate.

Most Zeniths I have worked on of this vintage have some vertical issue. If not a higher value resistor, VDR or control. Capacitor replacement should get it close enough to forget needing a centering control. The secondary of the VOT powers the convergence board which is a current-driven morass. The good thing is, you cannot get shocked by it.