Off Center Fed (OCF) Antennas Bargain Basement Store/Bargain BasementRefine by FiltersClear allFiltersClear allShow itemsShow itemsSwitchcraft 12B Stereo 1/4 Jack - 3 Conductor, panel mount, Vintage Mic Chassis JackSwitchcraft 12B Stereo 1/4 Jack - 3 Conductor, panel mount, Vintage Mic Chassis JackSKU SW12B-1$1.95 Buy Now OCF antennas are very convenient as they will allow multiple bands of operation with a simple wire antenna which is fed off center with a 4:1 OCF Current balun with built in feed line choke,