5:1 CUBE™ Unun – Model CU-5-1500 (50:250 Ohm, 1.8-61 MHz, 1.5KW PEP)
Application. For traveling wave, end fed or portable 20-31 foot vertical antennas the 5:1 unun makes a good transformer for converting 50 ohm coax to a 250 ohm feed point. If you use the antenna on multiple bands, the feed point impedance may not always be 250 ohms and use of the unun at high (>350 ohms) or low (<100 ohms) will require reduced power input or the unun may have its power ratings exceeded and damage to the unun may occur. The (5:1 conversion ratio will change for loads other than 250 ohms unbalanced.
Typical application:
Also available as a balanced output – CB-5-1500
FT Mix 61 - RFI Range: 200-2000 MHz
Mix #52, Material: NiZn, Initial Permeability: 250
Refine by On Sale
FT140-61, ID=.9", RFI Range 200-2000 MHz - Bulk 10 PackFT140-61, ID=.9", RFI Range 200-2000 MHz - Bulk 10 PackSKU F140-61-10List price $38.95 Save 10%$34.95On SaleFT140-61, ID=.9", RFI Range 200-2000 MHz - TX36/23/15-4C25 ReplacementFT140-61, ID=.9", RFI Range 200-2000 MHz - TX36/23/15-4C25 ReplacementSKU F140-61List price $4.50 Save 14%$3.89On Sale
Ferrite Ring Combo Pack, FT140 - .9" ID, 15 Rings - Mix 43, 61, 77, RFI Range .1-2000 MHzFerrite Ring Combo Pack, FT140 - .9" ID, 15 Rings - Mix 43, 61, 77, RFI Range .1-2000 MHzSKU FRCP-140-15List price $58.35 Save 14%$49.95
FT Mix 61 - RFI Range: 200-2000 MHz
Mix #52, Material: NiZn, Initial Permeability: 250
Refine by
On Sale
FT140-61, ID=.9", RFI Range 200-2000 MHz - Bulk 10 Pack
FT140-61, ID=.9", RFI Range 200-2000 MHz - Bulk 10 Pack
SKU F140-61-10
List price $38.95
Save 10%
$34.95
On Sale
FT140-61, ID=.9", RFI Range 200-2000 MHz - TX36/23/15-4C25 Replacement
FT140-61, ID=.9", RFI Range 200-2000 MHz - TX36/23/15-4C25 Replacement
SKU F140-61
List price $4.50
Save 14%
$3.89
On Sale
Ferrite Ring Combo Pack, FT140 - .9" ID, 15 Rings - Mix 43, 61, 77, RFI Range .1-2000 MHz
Ferrite Ring Combo Pack, FT140 - .9" ID, 15 Rings - Mix 43, 61, 77, RFI Range .1-2000 MHz
SKU FRCP-140-15
List price $58.35
Save 14%
$49.95
