Guys: I was just given an interesting bench power supply splitter schematic. This will provide a positive a negative supply from a positive supply input. For example, the output of a +40V input is +20V and -20V. Good for bench powering my Atari boards :) However, the circuit is limited to about 100mA (roughly) - not enough to power my PCBs. Anyone have a better solution short of buying a multi supply bench power source? :) Here's a link to the schematic: http://www.ionpool.net/splitter.gif Thanks, tom