A voice coil of some sort? You could hack something out of a small speaker. There is also the possibility of using a piezo type solution, or how about inducing movement directly in the wire using an electromagnet? That one might take more than your power budget though. Josh -- A common mistake that people make when trying to design something completely foolproof is to underestimate the ingenuity of complete fools. -Douglas Adams On Thu, 31 Mar 2005 09:03:35 -0800, John Pearson wrote: > I need to wiggle a thin wire. It will require very small movement, a few thousands of an inch, and the wire end will be free so there will be very little force required. I would like to use only a few mA at 5volts or less. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist