Are tantalum capacitors polar?

Tweakers' Asylum

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I'm using tants to bypass the supply rails to an op amp in my otherwise tube preamp. As far as I can see there is no marking on them to indicate that they are polar, but so far three have failed spectacularly on the negative supply rail to the op amp, so it suddenly occurred to me that I may be wiring them backwards. Help?

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Topic - Are tantalum capacitors polar? - Lew 11:49:49 12/30/06 (5)

Re: Are tantalum capacitors polar? - nightdoggy 05:46:53 12/31/06 (2)

Re: Are tantalum capacitors polar? - Lew 07:22:47 01/01/07 (1)

Mine just exploded, loudly. throwing shrapnel everywhere. - snert 11:16:57 01/01/07 (0)

Absolutely! - Ted Smith 12:19:54 12/30/06 (1)

Duh! - Lew 15:48:16 12/30/06 (0)

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