> I know. I know. But every time I start to look at inductors I get the willies. Me too, Who is going to develop a PIC based measuring instrument to give me the Henry's (milli, micro or whatever) of all the coils, and other wound or round pieces of wire (sri, pieces of wire that have been wound on something or nothing) I have in my junk box..... Henk - VK2GWK http://www.users.bigpond.com/tobbe/