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

RV/Trailer Multi-Ring/Multi-Snap On Combo Pack, Mix 31, RFI Range 1-300 MHz - 17 filters

RVCP-31-17
$95.00
In stock
1
Product Details
Brand: Palomar Engneers
UPC: Does not apply
MPN: FSRCP-31
Type: NEW
Country/Region of Manufacture: United States

This ferrrite Multi-Ring/Multi-Snap-On Combo Pack is a convenient solution for troubleshooting RFI/EMI (1-300 MHz) with various diameter cables ranging from 3/8" to 1.4"/35.6mm for use as either single turn or multiple turn RFI filters using ferrite rings and snap ons.

The filters are useful for RF coax, AC/DC power cables, and device interconnection cables.

Always use a snap on or ring with a larger inside diameter than the diameter of the cable and use multiple turns if possible (2 turns through the snap on is the same as 4 snap ons with 1 turn). Included in these combo packs are our most popular snap on sizes as follows:

Combo Pack includes the following:

F240-31 ring – 1.4″/35.6mm ID – 6 pieces

FSB31-3/8 – 3/8″/9.5mm ID – 6 pieces

FSB31-1/2 – 1/2″/12.7mm ID – 5 pieces

Normal Retail price is $112 for these parts

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