Most people will get frightened by a medium-high or high voltage, but low voltage at high currents needs care too, a small short circuit could mean a huge fire.

Most people will get frightened by a medium-high or high voltage, but low voltage at high currents needs care too, a small short circuit could mean a huge fire. When I was studying we had to disassemble a decomissioned tube computer, the tubes were the sub-miniature type, the double triodes were just a bit bigger than a incandscennt christmas tree light bulb.