Chris Torek <torek@BSDI.COM>  wrote:
 > There are, by the way, perfectly good reasons for using +/- 12 (or
 > even more) volts on long, unshielded, untwisted, unpaired wires
 > that run from the machine in the air conditioned basement, up into
 > the ceiling, through chases and drop ceilings next to the 120VAC
 > wiring and 400V fluorescents, finally to emerge in an office, wrap
 > around the 90-volt-ring-voltage telephone wires a few times, and
 > then go to the terminal on the desk.
 > 
 > Can you guess what those reasons might be? :-)

So you can charge your car batteries out in the parking lot?

:-)