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What the heck is that?

If that's a Russian teflon capacitor, it's new to me. I guess it could be a teflon capacitor from a non-Russian source. Down below, Tre' says this is a polystyrene, and I must agree that it looks like polystyrenes I have seen. TubeDIY generally avoids this sort of discussion, to my great relief, but I am a big fan of polystyrene capacitors. As I understand it, they are increasingly scarce due to difficulties with making them(?) I have some old 0.22uF/630V PASCAPs, polystyrenes once made in California, they stand up to teflons in similar value any day, IMO. I know polypropylene capacitors get a lot of favorable mention here, but I far prefer teflon or polystyrene film and foil to polypropylene, in coupling applications. End of Tweak-ophilic rant.


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