Carl Denk wrote: > I got this transformer rated: *Input:* 110/220VAC 60Hz *Outputs:* > 24VAC @ 2A (12V-0V-12V) and I'm nut sure how to hook it up. With 110V in you put the two primaries in parallel, with 220V you put them in series. In either case be very sure to get the polarities right, else poof. You could try to bring it up slowly from a variac output to make sure. ******************************************************************** Embed Inc, Littleton Massachusetts, http://www.embedinc.com/products (978) 742-9014. Gold level PIC consultants since 2000. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist