Just bought a Cornell Dubilier Capacitor Analyer Model BF-50

[Tube TV]

Mine has alligator clips and banana plugs. Leads are about 2 foot long.

I think the shroud is someones add on, mine doesn't have one.


Edit. I seen the pics Yeah I also think this is a capacitor. No clue on the ratings though. If I recall, when it's working the eye will open and close if there's leakage. If the leakage is slight it would pulse once every second or so, and if it was very leaky it would pulse rapidly. I think mine was working on the leakage test. It's a shame I don't have it in front of me or I would take some measurments off it.

Heathkit's early C1 and C2 testers had much the same idea using a neon bulb.