> You can use an N Channel FET if....... But is it worth the hassle ? Maybe it is. Getting a P-ch FET won't be a problem later on. I know the range is limited but something like the 12A MTP2955V from RS is fairly cheap, although the Ron (0.23), is quite a lot higher than the original N-ch in the drills, either STP60NF06 (0.014) or IRFZ46 (0.02) The implied question in my OP was whether FETs are generally superior to normal transistors in an application like this. Looking around the web the vast majority of high side drivers seem to be P-ch FETs _______________________________________________ http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist