5:1 Baluns/Ununs

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:

CU 5 1500 antenna - 5:1 Baluns/Ununs

Also available as a balanced output – CB-5-1500

442283549 - 5:1 Baluns/Ununs
+2

FB56-31 - 1/4" ID, RFI Range 1-300 MHz, 10 Pieces

Store/Ferrite Core Products/Mix 31/Slip On - Mix 31 - RFI Range 1-300 MHz
SKU FB56-31-10
$15.00
On Sale
List price $16.50
Save 9%
1
Save this product for later
Customer reviews
No reviews yet. Only signed-in customers who bought this product can leave reviews. To leave a review, sign in
Share this product with your friends
Pin it
FB56-31 - 1/4" ID, RFI Range 1-300 MHz, 10 Pieces
Store/Ferrite Core Products/Mix 31/Slip On - Mix 31 - RFI Range 1-300 MHz
Product Details
Initial Permeability (@ 10KHz): 1500
Material: MnZn
Max cable size - in/mm: .25/6.3
OD (A) - in/mm: .562/14/3
ID (B) - in/mm: .25/6.4
Length (C) - in/mm: 1.125/28.6
Z (ohms per bead - single turn 1 MHz): 35
Z (ohms per bead - single turn 5 MHz): 91
Z (ohms per bead - single turn 10 MHz): 119
Z (ohms per bead - single turn 25 MHz): 181
Z (ohms per bead - single turn 100 MHz): 300
Z ohms (per bead - single turn 250 MHz): 280

Ferrite Slip On Bead - ID = .25 in/6.4mm - Mix 31, 10 pieces

Show More
Display prices in:USD