Another spelling issue... I believe it should be "bus bars" instead of "buss bars." See http://en.wikipedia.org/wiki/Buss . On prototyping in general... I'm tending to go directly to prototype circuit boards. They are pretty inexpensive (something like 3/$99 from Advanced Circuits for 2 layer). I can then hack those up to fix my mistakes. Most mistakes seem to be component values in analog circuits. Hand wired prototypes seem to fall apart as I add one more wire to some component. I spend more time debugging the wiring than the circuit. Also, if this is something destined for production, at some point we're going to need to do schematic capture and board layout anyway. May as well start early. My thoughts, anyway... Harold -- FCC Rules Updated Daily at http://www.hallikainen.com - Advertising opportunities available! -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist