more notes....
1/ Exercise all buttons and switches periodically.
2/ Can use control spear from front no need to open
3/ Keep watch on INTEN to avoid burn in of CRT, and keep SCALE ILLUM, SCLAE FACTOR dimmed to prolong lamp life
4/ knobs upper INTEN FOCUS are VERY easy to break the plastic has deteriorated and they are very small,
5/ Bat switch to select test fixt at front porch , left/off/right VERY easy to bend or break, rare SwitchCraft leaf switch.
6/ Test fix HV protect house is easy to break and a pain to use.
Remove and either defeat the interlock switch OR replace wit a small Alco toggle.
Will post pix
Enjoy,
Jon
PS: All new repros are 3D filamnt and very waek plastic, no way to replicate knobs especally the complex ones.