2:1 Baluns/Ununs Balun/Unun DIY Kits Store/Antenna Products/CUBE Impedance Transformers (<1:1, 1:1, >1:1)/Balun/Unun DIY KitsRefine by Sort byWe recommendNewest arrivalsPrice: Low to HighPrice: High to LowName: A to ZName: Z to AFiltersClear allFiltersClear allShow itemsShow items50:200 ohm (4:1) Dual Core Current Balun Kit, 1-55 MHz, 1500 watts PEP, for OCF, Loop, Ladder Line Antennas50:200 ohm (4:1) Dual Core Current Balun Kit, 1-55 MHz, 1500 watts PEP, for OCF, Loop, Ladder Line AntennasLadderline to Coax TransformerSKU BA-4-1500DC$37.95 Buy Now50:200 ohm (4:1) HF Balun or Unun Core Kit, 3-31 MHz, 250 watts50:200 ohm (4:1) HF Balun or Unun Core Kit, 3-31 MHz, 250 wattsSKU BA-4-250$19.95 Buy Now50:450 ohm (9:1) Balun or Unun Core Kit, .5-32 MHz, 1000 watts PEP, end fed/Ladder Line, T2FD antenna50:450 ohm (9:1) Balun or Unun Core Kit, .5-32 MHz, 1000 watts PEP, end fed/Ladder Line, T2FD antennaSKU BA-9-1000$29.95 Buy Now50:450 ohm (9:1) Balun or Unun Core Kit, 1.8-30 MHz, 250 watts PEP, end fed, T2FD antenna50:450 ohm (9:1) Balun or Unun Core Kit, 1.8-30 MHz, 250 watts PEP, end fed, T2FD antennaSKU BA-9-250$21.95 Buy Now50:50 ohm (1:1) Common Mode Choke HF Balun Kit - 1500 watt PEP, 1.8-31 MHz50:50 ohm (1:1) Common Mode Choke HF Balun Kit - 1500 watt PEP, 1.8-31 MHzSKU BA-1-1500$29.97 Buy NowEnclosure Box - 4" x 4" x 4"Enclosure Box - 4" x 4" x 4"SKU CB-Box-2$19.95 Buy NowEnclosure Box - 4.375" x 4.375" x 2.375"Enclosure Box - 4.375" x 4.375" x 2.375"SKU CB-Box-1$14.95 Buy NowEnclosure Box - 6" x 6" x 4"Enclosure Box - 6" x 6" x 4"SKU CB-Box-3$27.95 Buy NowOn SaleFT140-43, ID=.9", OD=1.4", RFI Range 25-300 MHzFT140-43, ID=.9", OD=1.4", RFI Range 25-300 MHzSKU F140-43List price $4.50 Save 14%$3.89 Buy NowHalyard Hoist Eyebolt Kit - 1/4-20 Stainless SteelHalyard Hoist Eyebolt Kit - 1/4-20 Stainless SteelSKU TEK-1/4-1$4.95 Buy NowN Connector Kit (female chassis connector)N Connector Kit (female chassis connector)SKU UG-58-1$7.49 Buy NowPreassembled Balun & Unun Boxes, Stainless Hardware - just add your ferrite choke or transformerPreassembled Balun & Unun Boxes, Stainless Hardware - just add your ferrite choke or transformerSKU CU-BOX-1-SO$49.95 Buy NowSO-239 Kit (female chassis connector + hardware)SO-239 Kit (female chassis connector + hardware)SKU SO-239 Kit-1/2$3.95 Buy NowSide Eyebolt Kit - 1/4-20 Stainless SteelSide Eyebolt Kit - 1/4-20 Stainless SteelSKU SEK-1/4-1$5.95 Buy NowSide or Top Stud Kit - 1/4-20 Stainless SteelSide or Top Stud Kit - 1/4-20 Stainless SteelSKU SSK-1/4-1$3.95 Buy NowUHF PL-259 Male Plug to SO-239 Female Right Angle 90 Degree RF Adapter ConnectorUHF PL-259 Male Plug to SO-239 Female Right Angle 90 Degree RF Adapter ConnectorSKU UHF-90$6.95 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).
