It needs to put out +12VDC, +5VDC, and -12VDC. At first glance, I'd think a plain old AT power supply would work fine, since it would put out +12VDC and +5VDC at more than sufficient amperages.
But what about the -12VDC? As I understand it, -12VDC is merely +12VDC with swapped polarity. But I don't know how I'd be able to get + and - out of the same supply without shorting its outputs to its grounds.
Can anyone enlighten me on what I'm missing?
Edited by nwbell, 16 November 2011 - 05:06 PM.