> I made a couple of suggestions, such as an experimenter's wind > turbine (with the motor as the generator, seems a bit of a waste > of a good motor though), I'm not sure why you see that as a waste. Main issue with steppers there is that they ar highly salient aka coggy by design and that makes them hard to start in low wind speeds with small rotors. 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 .