[Heatercathodeshort]

Just to give you a glimmer of encouragement this example was in a truly nasty state when I pulled it off the tip so long ago that I forget.
It was filthy rotten with veneer missing, chassis top rusty and the CRT surround cracked into three pieces.
It was only seconds away from being scrapped! I did the write up a while back but it turned out OK. The cabinet required veneer patches and repolishing but it works!
Good luck with yours. The LOPT tends to suffer from saturation but responds to the current through the windings trick. John.