Jim, I think your quite right in "seriously choking off your feeders". But please tell me how to use toroids on a 600 ohm open wire line. tnx, Bob,w5pvr -------------- next part -------------- No virus found in this outgoing message. Checked by AVG - www.avg.com Version: 9.0.914 / Virus Database: 271.1.1/3914 - Release Date: 09/23/11 02:34:00