>> My general impression is that a PIC output is likely to be pretty >> good at driving all but the highest power MOSFETs (which may >> have particularly high gate capacitance.) Having enough drive Voltage is crucial. AFTER THAT capacitance is important only if switching fast enough. For low frequency use most FETS will be OK if drive Voltage is OK. R --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .