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
Grow Light RFI
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Grow Light RFI kit - 2 Filters for AC In/Lamp Out, RFI Range: .15-10 MHzGrow Light RFI kit - 2 Filters for AC In/Lamp Out, RFI Range: .15-10 MHzSKU RFI-BALLASTList price $39.99 Save 25%$29.95
Grow Light RFI
Refine by
On Sale
Grow Light RFI kit - 2 Filters for AC In/Lamp Out, RFI Range: .15-10 MHz
Grow Light RFI kit - 2 Filters for AC In/Lamp Out, RFI Range: .15-10 MHz
SKU RFI-BALLAST
List price $39.99
Save 25%
$29.95