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
Snap On - Mix 61 - RFI Range 200-2000 MHz
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FSB61-1/2, ID=1/2", RFI Range 200-2000 MHz, Bulk Pack of 10FSB61-1/2, ID=1/2", RFI Range 200-2000 MHz, Bulk Pack of 10SKU FSB61-1/2-10List price $59.50 Save 8%$54.95
FSB61-3/4, ID=3/4", RFI Range 200-2000 MHzFSB61-3/4, ID=3/4", RFI Range 200-2000 MHzSKU FSB61-3/4-1$14.95On Sale
Ferrite Mini Snap On Combo Pack, Mix 61, RFI Range 200-2000 MHz - 6 filtersFerrite Mini Snap On Combo Pack, Mix 61, RFI Range 200-2000 MHz - 6 filtersSKU FMSCP-61-6List price $55.00 Save 9%$49.95On Sale
Ferrite Ring and Snap On Combo Pack - 10 Rings (1.4" ID) + 10 Snap On Beads (1/2" ID) - Mix 61 (RFI Range 200-2000 MHz) FREE USA SHIPPINGFerrite Ring and Snap On Combo Pack - 10 Rings (1.4" ID) + 10 Snap On Beads (1/2" ID) - Mix 61 (RFI Range 200-2000 MHz) FREE USA SHIPPINGSKU FRSCP-61-20List price $185.00 Save 3%$179.95On Sale
Multi-Ring/Multi-Snap On Combo Pack, Mix 61, RFI Range 200 - 2000 MHz - 14 filtersMulti-Ring/Multi-Snap On Combo Pack, Mix 61, RFI Range 200 - 2000 MHz - 14 filtersSKU MRSCP-61-14List price $106.00 Save 10%$94.95
Snap On - Mix 61 - RFI Range 200-2000 MHz
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On Sale

FSB61-1/2, ID=1/2", RFI Range 200-2000 MHz, Bulk Pack of 10
FSB61-1/2, ID=1/2", RFI Range 200-2000 MHz, Bulk Pack of 10
SKU FSB61-1/2-10
List price $59.50
Save 8%
$54.95

FSB61-3/4, ID=3/4", RFI Range 200-2000 MHz
FSB61-3/4, ID=3/4", RFI Range 200-2000 MHz
SKU FSB61-3/4-1
$14.95
On Sale

Ferrite Mini Snap On Combo Pack, Mix 61, RFI Range 200-2000 MHz - 6 filters
Ferrite Mini Snap On Combo Pack, Mix 61, RFI Range 200-2000 MHz - 6 filters
SKU FMSCP-61-6
List price $55.00
Save 9%
$49.95
On Sale

Ferrite Ring and Snap On Combo Pack - 10 Rings (1.4" ID) + 10 Snap On Beads (1/2" ID) - Mix 61 (RFI Range 200-2000 MHz) FREE USA SHIPPING
Ferrite Ring and Snap On Combo Pack - 10 Rings (1.4" ID) + 10 Snap On Beads (1/2" ID) - Mix 61 (RFI Range 200-2000 MHz) FREE USA SHIPPING
SKU FRSCP-61-20
List price $185.00
Save 3%
$179.95
On Sale

Multi-Ring/Multi-Snap On Combo Pack, Mix 61, RFI Range 200 - 2000 MHz - 14 filters
Multi-Ring/Multi-Snap On Combo Pack, Mix 61, RFI Range 200 - 2000 MHz - 14 filters
SKU MRSCP-61-14
List price $106.00
Save 10%
$94.95