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I am amazed -

This post left me scrathing my head.
I've used tantalum caps for years as bypasses for rails and coupling caps for RF amps.

If there is one thing I've learned by nasty experience it is that tantalums have ZERO tolerance of reverse biasing and ZERO tolerance of overvoltage.

I can only assume that source impedance of the battery was high enough to prevent a destructive amount of current to flow. Reverse biased tantalums or parallel reverse connected tantalums have absolutely no place in any audio gear you want to last more than 1/2 a second.

Don't do it !!!

Cheers,
Ian



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