

MFJ Enterprises Original MFJ-913 Balun 4:1 Current 300 Watts
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Yuri Botnar
> 3 daySimple device, works great, with a manual control antenna tuner I am able to get SWR in a range from 80 to 17 m with a 40 m wire dipole antenna in the attic.
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Ed G
> 3 dayproduct as expected. appears to be good quality.
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Hester Swaniawski III
Greater than one weekMFJ is good quality.Worked good on ocf antenna.
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IT Guru
> 3 dayYes 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.
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MattS
> 3 dayThis 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.
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HD-RIDER
> 3 dayThis will be used on a future antenna build.
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Glenn
> 3 dayIt appears to work OK, and I did not have to return it for repair, if you know what I mean..
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c333horne
> 3 dayGreat product and service
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TCB
> 3 dayA very good 4:1 balun to match my 300 ohm balanced line feed.
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acwiz
12-06-2025As advertised.