On May 31, 2006, at 10:22 PM, Vasile Surducan wrote: > just a little bigger one (5x) made by chinese is about 2 euro/pcs. > At about 3-4mm diameter, you start seeing conventional electromagnetic motors, though not usually configured as linear positioner... Crazy people use them to make very small remote controlled electric airplanes. BillW -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist