> 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.) >=20 > (2n7000 datasheet says 50pF max Fair point. I didn't look it up and assumed C would be higher than that. As you say, even a modest power FET can have gate C >> 1000pF and needs good drive to avoid the linear region Joe --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .