On the one hand, Rule 4. On the other hand, People have an internal resistance to them, I'd assume hams would be the same. If we take the average from my class, I think RAvg ~30. To get 1w / beast, we'd need to put 5.4V through them. Or rather, their central nervous system would need to supply 182mA. The Heart shuts down (fibrillation) at 300mA (DC) so in that sense, we're totally good. (EDIT: Basing it on 120V system, which is what you get from your standard wall outlet in N.America) Someone in the medical field, tell us what we need to do to get them up to 182mA! -Sauce: Someone who plays with electricity.