HF Impedance Transformer Kits

50:450 ohm (9:1) Transformers

Store/Antenna Products/CUBE Impedance Transformers (<1:1, 1:1, >1:1)/50:450 ohm (9:1) Transformers
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1072922502 - HF Impedance Transformer Kits
50:450 ohm (9:1) Balun or Unun Core Kit, .5-32 MHz, 1000 watts PEP, end fed/Ladder Line, T2FD antenna
50:450 ohm (9:1) Balun or Unun Core Kit, .5-32 MHz, 1000 watts PEP, end fed/Ladder Line, T2FD antenna
SKU BA-9-1000
$29.95
581480949 - HF Impedance Transformer Kits
50:450 ohm (9:1) Balun or Unun Core Kit, 1.8-30 MHz, 250 watts PEP, end fed, T2FD antenna
50:450 ohm (9:1) Balun or Unun Core Kit, 1.8-30 MHz, 250 watts PEP, end fed, T2FD antenna
SKU BA-9-250
$21.95
3895935384 - HF Impedance Transformer Kits
50:450 ohm (9:1) CUBE™ Balun, 1.8-31 MHz, 5 KW, ladder line, ZEPP, T2FD
50:450 ohm (9:1) CUBE™ Balun, 1.8-31 MHz, 5 KW, ladder line, ZEPP, T2FD
SKU CB-9-5000TS
$149.95
1042221012 - HF Impedance Transformer Kits
50:450 ohm (9:1) CUBE™ Balun, 1.8-61 MHz, 1.5 KW, SO-239 UHF Input, BBTD, Traveling Wave Antennas
50:450 ohm (9:1) CUBE™ Balun, 1.8-61 MHz, 1.5 KW, SO-239 UHF Input, BBTD, Traveling Wave Antennas
SKU CB-9-1500TS
$119.95
2908446668 - HF Impedance Transformer Kits
50:450 ohm (9:1) CUBE™ Unun, 1.8-31 MHz, 5 KW PEP, End Fed Antenna
50:450 ohm (9:1) CUBE™ Unun, 1.8-31 MHz, 5 KW PEP, End Fed Antenna
SKU CU-9-5000
$149.95
On Sale
1864891769 - HF Impedance Transformer Kits
50:450 ohm (9:1) CUBE™ Unun, 1.8-61 MHz, 1.5 KW, End Fed Long Wire
50:450 ohm (9:1) CUBE™ Unun, 1.8-61 MHz, 1.5 KW, End Fed Long Wire
SKU CU-9-1500
List price $129.95
Save 15%
$109.95
3938117916 - HF Impedance Transformer Kits
Bullet 50:450 (9:1) HF Unun, 1.8-61 MHz, 100 Watts, End Fed Long Wire Antennas
Bullet 50:450 (9:1) HF Unun, 1.8-61 MHz, 100 Watts, End Fed Long Wire Antennas
SKU Bullet-9U-100
$59.95
4488332622 - HF Impedance Transformer Kits
Bullet 50:450 (9:1) HF Unun, 1.8-61 MHz, 500/1500 Watts, End Fed Long Wire Antennas
Bullet 50:450 (9:1) HF Unun, 1.8-61 MHz, 500/1500 Watts, End Fed Long Wire Antennas
SKU Bullet-9U-500
$79.95
4599243894 - HF Impedance Transformer Kits
Bullet 50:450 (9:1) HF Unun, 200 KHz-30 MHz, 500 Watts, End Fed Antennas, , VLF, SWL
Bullet 50:450 (9:1) HF Unun, 200 KHz-30 MHz, 500 Watts, End Fed Antennas, , VLF, SWL
SKU Bullet-9LFU-500
$79.95
4599269519 - HF Impedance Transformer Kits
Bullet Hybrid (9:1) HF Balun + 1:1 Choke, 1.8-61 MHz, 500 Watts, T2FD, BBTD, ALE
Bullet Hybrid (9:1) HF Balun + 1:1 Choke, 1.8-61 MHz, 500 Watts, T2FD, BBTD, ALE
SKU BULLET-9-1-500EB
$119.95
On Sale
1725513180 - HF Impedance Transformer Kits
Hybrid 9:1 Current Balun + 1:1 Current Balun in one enclosure, 1.8-61 MHz, 1.5KW PEP - BBTD, T2FD Antenna
Hybrid 9:1 Current Balun + 1:1 Current Balun in one enclosure, 1.8-61 MHz, 1.5KW PEP - BBTD, T2FD Antenna
SKU CB-9-1-1500
List price $189.95
Save 26%
$139.95
581480922 - HF Impedance Transformer Kits
Magnetic Long Wire Antenna Matcher (9:1) for SWL, 100 KHz-30 MHz
Magnetic Long Wire Antenna Matcher (9:1) for SWL, 100 KHz-30 MHz
SKU MLB-2
$79.95
On Sale
930357589 - HF Impedance Transformer Kits
Multi Ratio 4:1/6:1/9:1 CUBE™ Balun, 1.8-61 MHz, 1.5 KW
Multi Ratio 4:1/6:1/9:1 CUBE™ Balun, 1.8-61 MHz, 1.5 KW
SKU CB-4-9-1500
List price $149.95
Save 13%
$129.95
On Sale
3882535253 - HF Impedance Transformer Kits
Multi Ratio 50:200 (4:1) & 50:450 (9:1) CUBE™ Unun, 1.8-60 MHz, 1500W, End Fed
Multi Ratio 50:200 (4:1) & 50:450 (9:1) CUBE™ Unun, 1.8-60 MHz, 1500W, End Fed
SKU CU-4-9-1500
List price $169.95
Save 24%
$129.95
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These impedance transformer kits have been designed for the Do-It-Yourself (DIY) enthusiast and Instructor workshops on baluns and ununs for antenna matching and RFI use.

The impedance transformers are classified in ratios of 2:1 (100:50 ohm) to 16:1 (800:50 ohm).  The outputs can be configured as balanced (Balun) or as unbalanced (unun) with respect to the inputs which are considered all unbalanced coax at 50 ohms.  All impedance transformers are designed for 1.8-31 MHz unless otherwise specified.