Clark Tyger ex Noel Gallagher Oasis, tweed Bandmaster clone repair, part 2. 

Yes I'm sure they must have, this is the 2nd one I've had in with failed Jensen's.

Yes non polarized, signal coupling.

Interesting. Never realized you could use them in an amp. I bought some for bias caps and was told that they need to be polarized so they don't pass dc. Makes sense that they won't I guess, seeing as they are non polarized caps wired back to back.