50:300 (6:1) CUBE™ Balun, 1-61 MHz, 1.5KW (choose top stud/eyebolt output)
1500 Watt 6:1 CUBE Balun™ – Model CB-6-1500
Model CB-6-1500 is a 6:1 (300:50) balun housed in a NEMA enclosure box (4″ x 4″ x 2″) with two top studs capable of input power levels up to 1.5KW PEP watts when used with a matched load. The 6:1 ratio takes 50 ohms input and matches to 300 ohms balanced output from 1-61 MHz with SWR < 1.5:1 under matched load conditions. A great balun for windoms, OCF antennas >60 feet over ground, Hertz and folded dipole antennas, T2FD etc. Dual core, Use “EB” version with side eye bolts for wire attachments for OCF dipole use.
Typical SWR and impedance transformation from 1-61 MHZ shown below:
This transformer requires a feed line choke to isolate the coax feed line from the antenna. A coax noise filter is also recommended.