> > > > > the nice > "bootstrapping" feature that powers my MPU even when starting from total > inactivity). > > Via the protection diodes ot ... ? We do not know enough about your circuit. You give us little pieces but not enough to be sure of what will happen. _____________ What are the two transistor types? Russell --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .