U-31B tube questions.
Does anyone know what this was used in? And is there any schematics for a power supply or even how much voltage it should be getting?
From what I can tell it is a dual cascaded tube, looks like gen 0 photocathode s-1 on the front, purple and blue hue. Came wit some paperwork with a pin diagram but no voltage inputs.
u/SamISF-2 — 8 days ago