Peter L. Peres wrote: > > Fixed inductor + 2 capacitors should work. Use a PI filter config. with 1 > coil and 2 caps. It does not need to be symmetrical. Interesting idea, but an inductor will cost similar to a cheap resonator, unless you are suggesting a PCB spiral track inductor? -Roman -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu