Well, I have begun to clean the tv and do a basic dud test using a multimeter on the tubes, so far all the tubes I am testing at least have a good heater. I do not have a proper tube tester so emissions are unknown. Visually speaking, Horizontal output tube looks baked and probably is bad (heater tested OK), HV Rectifier tube (need to test it for heater functionality still) looks burnt and bad too.
It looks like mickey mouse and his buddies were brief tenants in this tv after it was put into storage many years ago as mouse poop is littering all over the wooden inside cabinet and even some on the chassis. So some cleaning will be desired by me, because I am not a fan of that.
Also of concern it appears after opening up the HV cage area that not only does the HV rect tube look possibly burnt, but I think this thing suffered some sort of arcing. Wire fuse was blown. Flyback does not look melted though as far as I can tell.
Horizontal output tube connector wire is taped up on the other end and goes nowhere...wonder why?
Also looked like some component vaporized when it shorted on that red board. I heard these red boards near flybacks can become conductive and arc too! Very dirty and greasy in the flyback HV cage area in general. Not looking encouraging.
Attached are some photos showing areas of concern along with notes and commentary.
https://imgur.com/a/y4fqXHd