On Apr 17, 2007, at 3:26 AM, Alan B. Pearce wrote: > Top right don't know. > I believe "top right" is a sidac (overvoltage supressor), from Teccor. BillW -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist