MFJ Enterprises Original MFJ-913 Balun 4:1 Current 300 Watts

Yes its not 1kw but for a 100w radio it works perfectly fine and being so lightweight it didnt drag my OCF down since i have no way to support from the feed point, only pulled tight from the ends. So for my needs it was perfect.

A very good 4:1 balun to match my 300 ohm balanced line feed.

The UHF output was misaligned and fixing that isnt easy as you cant remove screws or take this thing apart in any reasonable way. However, performance of this balun is pretty good with multiple wire HF configurations.

Radio is toast because of defective balun

Works as expected on an attic mounted OCF dipole. Though stuffing 135ft of wire into an average size attic doesnt happen without a fight, and the requisite SWR is pretty high on bands the antenna should be resonant on.

Prefect replacement for a previous balun! Working great!!!

Great company great product

I cant really review this product since its sitting in my electronics junk box (term used for parts bin in amateur radio). I will eventually use with some antenna building project and after several months usage give and updated report.

This MFJ-913 works great on my 80,40,20 OCF but only up to 40 meters. The swr is great at 80 and 40, just a touch of tuning is needed at 20. But now my feed line is radiating on 80 meters after only a week of having it up and is causing rfi in the house. Im only running up to 100 watts. Probably just a quality issue im guessing.

It does what it is supposed do!. used it for a multi-band home brew dipole.