On Feb 12, 2012, at 4:26 PM, V G wrote:

> Here's an interesting video I found that shows a guy shorting 2600F
> ultracapacitors in different ways.
>=20
> A few questions:
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> 1. I know that these things have extremely low ESR and can therefore
> deliver an enormous power output. Considering that one has normal skin (n=
ot
> too dry, not wet), how dangerous is one of those capacitors charged to 2.=
5V?

Normal skin is 10K, not much risk at 2V5.
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> 2. Approximately at what voltage does it start becoming dangerous?

30 -100 Volts.
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> 3. Anyone know of a cheap source to buy these things?
> --=20
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  *
  |  __O    Thomas C. Sefranek  wa1rhp@comcast.net
  |_-\<,_   Amateur Radio Operator: WA1RHP
  (*)/ (*)  Bicycle mobile on 145.41 MHz.

ARRL Instructor, Technical Specialist, VE Contact.

http://www.harvardrepeater.org


--=20
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