> > > I suspect that "slow" diodes (eg 1N400x series) might even produce less > EMI.... the slowness being evident as an equivalent capacitance that > suppresses dv/dt. I also could be totally wrong here :-) An RC snubber > would > be a better idea. Reminds me of a shipment of russian relays we got in once. They had series R/C supressors across the coils. Molded in red plastic. (red supressors on russian relays.. am I the ONLY guy that finds this funny?) -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist