Here's an interesting video I found that shows a guy shorting 2600F ultracapacitors in different ways. A few questions: 1. I know that these things have extremely low ESR and can therefore deliver an enormous power output. Considering that one has normal skin (not too dry, not wet), how dangerous is one of those capacitors charged to 2.5V= ? 2. Approximately at what voltage does it start becoming dangerous? 3. Anyone know of a cheap source to buy these things? --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .