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
Side Eyebolt Kit - 1/4-20 Stainless SteelProduct DetailsSide Eyebolt Kit: Eyebolt-1/4 x 2 5/8 (1), 1/4" x 7/16 nut (2),
1/4" x 5/8" washer (4), 1/4" Ring Solder Lug (1), 1/4" Wing Nut (1),
1/4" Star Washer (1), Nylock Nut-1/4" (1). All Stainless Steel
These are the same parts we use for our Baluns, Ununs and Chokes
New
FORK SOLDER LUG - 14-16AWG - 1/4 SPACING - 10 PIECES,FORK SOLDER LUG - 14-16AWG - 1/4 SPACING - 10 PIECES,Ground ConnectorSKU FSL25-10$4.95
Side Eyebolt Kit: Eyebolt-1/4 x 2 5/8 (1), 1/4" x 7/16 nut (2),
1/4" x 5/8" washer (4), 1/4" Ring Solder Lug (1), 1/4" Wing Nut (1),
1/4" Star Washer (1), Nylock Nut-1/4" (1). All Stainless Steel
These are the same parts we use for our Baluns, Ununs and Chokes
