2:1 Baluns/Ununs Mix 61 Store/Ferrite Core Products/Mix 61Ring - Mix 61 RFI Range: 200-2000 MHzRing - Mix 61 RFI Range: 200-2000 MHzSnap On - Mix 61 - RFI Range 200-2000 MHzSnap On - Mix 61 - RFI Range 200-2000 MHzSlip On - Mix 61 - RFI Range 20-2000 MHzSlip On - Mix 61 - RFI Range 20-2000 MHzRefine by FiltersClear allFiltersClear allShow itemsShow itemsFerrite Sampler Pack, Mix 61, RFI Range 200-2000 MHz - 10 filters - 1.4" ID Ring, Snap on 1/4, 1/2, 3/4 Slip On 1/2Ferrite Sampler Pack, Mix 61, RFI Range 200-2000 MHz - 10 filters - 1.4" ID Ring, Snap on 1/4, 1/2, 3/4 Slip On 1/2SKU FSP-61-10$89.95 Buy Now 2:1 (100:50) Baluns are useful between 50 ohm coax and 100 ohm balanced lines for loops, cubical quads, log periodics and other antennas where the impedance at the end of the feedline is 100 ohms (1/2 wavelength feedline).