I have for sale 3 RFI supressing torrids which would work in your Icom 706 (or other Icom radio) setup. Two of them are the MFJ snap on square torrids. The other one is a larger, round, 2 1/2 inch diameter torrid. I am asking $11 shipped for all three of these, and can take paypal/check/mo. 73 John AF5CC