Good Evening: Looking for a Ten-Tec model 208a CW audio filtre, to go with my Ten-Tec Argo 515 QRP rig. If you have one you will part with, I will be happy to pay high dollar for it, depending on overall condition. Please, anyone? 73, --Doc/K0EVZ W.D. (Doc) Lindsey dock0evz at earthlink.net EarthLink Revolves Around You.