6:1 Baluns/Ununs

Model CB-6-1500 is a 6:1 (300:50) voltage 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/500 watts continuous when used with a matched load. The 6:1 ratio takes 50 ohms input and matches to 300 ohms balanced output from 1.8-61 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, Ruthroff style balun. Choose version with side eye bolts for wire attachments for OCF dipole use.

50:600 ohm, (12:1) CUBE™ Balun/Unun, 1.8-31 MHz Balun/Unun, RX Only/1KW/2KW/3KW PEP, T2FD, Rhombic, End Fed, Flagpole

SKU CB-12-1000TS
$119.95
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List price $139.95 Save 14%
Bulk pricing available for quantities of 2 units or more
Balun/Unun?
PEP Power rating
Balun Output
1
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2 items$111.957% off
10 items$103.9513% off
50 items$99.9517% off
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50:600 ohm, (12:1) CUBE™ Balun/Unun, 1.8-31 MHz Balun/Unun, RX Only/1KW/2KW/3KW PEP, T2FD, Rhombic, End Fed, Flagpole
Product Details
Country/Region of Manufacture: United States
Type: New
Input ohms/Output ohms: 50 in/600 out balanced (balun) or unbalunced (unun)
Frequency Range < 2:1 SWR (MHz): 1.8-31
PEP Power Rating (watts): RX only/1000/2000/3000
Insertion Loss (dB): < .1 dB
Input Connector: SO-239
Hardware Type: Stainless Steel
Enclosure Size: 4 x 4 x 2, 3KW = 4 X 4 x 4
Weight (pounds): 2


HF 12:1 Impedance Transformers

12:1 Baluns are useful transformers for 600 ohm balanced loads the impedance at the end of the feed line is 600 ohms (1/2 wavelength feed line), or high impedance feeds for rhombic, T2FD and traveling wave antennas.

12:1 Ununs are useful between coax and long wires with a load impedance near 600 ohms like a beverage antenna. Shortwave listener antennas also can benefit with the 12:1 unun and it may provide a better match than 9:1 ununs – this means quieter noise levels and stronger signals so you can hear distance stations easier.

For end fed antennas, use a 9:1 unun or 12:1 unun - also available in the "Bullet" antenna end fed style (Bullet-12U-500)

Receive only baluns/ununs are rated for 100 watts PEP

All enclosure boxes have 2 side flanges with 1/4" holes.

All of these products are made to order and typical production time is 10 days depending on quantity.