We just bought an entire surplus electronics distributor (minus what we had to give away because it would not fit a big UHAUL van) and have a few obviously expensive parts we cannot identify.
Unit looks like a fuse about one inch in diameter by 3 long. Measures 2 Megohms and 135 pf. Appears to easily handle 25 kilovolts and possibly
50 kilovolts. 1 inch smooth arc distance.Ends snap into some sort of fuseholder like carrier. Body is white fired ceramic. Ends are plated with cadmium, solder, or something silver color like.
Markings are SHALLCROSS 150A 2 MEGOHMS
Packaged bulk in very expensive looking wooden crate.
What is it? Value?
My guess is some kind of high voltage bleeder or surge device.
150 amps across 2 megohms sounds kinda impressive. Way too, even. 150A might more likely be a part number.