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

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

Generic Computer Equipment/Ethernet RFI Kit - 10 Filters

SKU RFI-COMPUTER
$49.95
In stock
1
Product Details

Generic Computer Equipment RFI Kits - use for desktop, laptop, DSL/cable modems, Ethernet, etc.

This RFI kit is specifically selected to cure most household computer device RFI problems. It contains 2 ferrite rings for AC or DC power supply protection and 8 Snap On ferrite split beads selected to eliminate RFI from 1 to 300 MHz. The beads are easy to use, don’t require modification of the protected equipment and work in almost all cases, even when plug-in filters fail.

Useful for all brands of computer equipment.
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