Main problems with brass would be substantially non zero temperature coefficient of resistance and relatively low resistance. Worth a try though. I have brass shim here and it would be interesting to see how functional it was. Russell > Just a guess! but sheet brass (or other material) in a rectangle > shape cut > according to R equals Rho L over A, -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist