Normally with a relay, you would simply put a diode across the coils to snu= b the EMF. =A0 With a single coil latching relay, where you swap the polarity to latch/unl= atch thats not going to work very well. I've done a bit of searching and have yet to see an example of how to snub = something like this, so asking the list if anyone has an idea? --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .