In Reply to: Sorry, no bangs on reversing 'lytic cap to DC. (long) posted by cheap-Jack on February 26, 2007 at 12:44:05:
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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Follow Ups
- I am amazed - - Gingertube 18:55:15 02/26/07 (6)
- So I must be very very lucky. - cheap-Jack 08:05:28 02/27/07 (5)
- "with zero DC potential across the terminals" - Tre' 10:00:14 02/27/07 (4)
- Technically there is some DC if used as couping cap. - cheap-Jack 11:18:17 02/27/07 (3)
- Re: Technically there is some DC if used as couping cap. - Tre' 11:35:33 02/27/07 (2)
- No, he did not. - cheap-Jack 12:04:12 02/27/07 (1)
- Re: No, he did not. - Tre' 12:28:36 02/27/07 (0)