On 18/06/2011 22:45, David wrote: > I am not particularly tight on space nor constrained by a few extra > pennies, but it would be good to know which combination of (A|B)+(Y|Z) > is correct and for what reasons. You can indeed have no resistors Or in an high RF / EMI environment, longer PCB traces etc have both=20 resistors at FET (say 100 Ohm series and 22K or 47K gate to ground) With=20 SM it's not much space. --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .