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

(1238 Reviews)

Price
$65.00

Quantity
(10000 available )

Total Price
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38 Ratings
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Reviews
  • HD-RIDER

    Greater than one week

    This will be used on a future antenna build.

  • Jeff S Skelton

    > 3 day

    Cheap enough and works.

  • TCB

    Greater than one week

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

  • Gary

    10-06-2025

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

  • JBB

    > 3 day

    Excellent product fast delivery, using on off center fed 40m dipole. Excellent swr in all expected bands

  • MrStu

    Greater than one week

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

  • Harold F. Pfannenschmid

    > 3 day

    Good product, good ship time. Thank you

  • Duane A. Meadows

    Greater than one week

    When the balun arrived, it rattled inside. Disassembly showed that 2 nuts and a washer were floating loose inside. Actually trying to use this balun could have been disastrous. I will repair it just because as an electronic tech, thats what I do, and I enjoy the challenge. Basically, for most folks... buyer beware!

  • senior_geek_cs_grad

    > 3 day

    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.

  • GrumpyDad

    > 3 day

    I own 2 of these. One is the feed point for a 4 band fan dipole. The other feeds a an end fed Zepp style wire antenna like this: https://images.duckduckgo.com/iu/?u=http%3A%2F%2Fve3clq.files.wordpress.com%2F2011%2F01%2Fw3edpverticalmodel2.jpg&f=1 I could not build a current balun for much less money than these cost shipped.

The MFJ-913 is a 300 Watt true current baluns/antenna center insulators that transforms 200 ohms to 50 ohms. Transmission Line Transformer construction using 100 ohm characteristic impedance transmission line gives flat 160-10 Meter response. Large low permeability ferrite cores easily handle full power. SO-239, stainless steel hardware with direct 14 gauge stranded copper wire connection to antenna. Heavy duty weather housing. Measures 4¼ x 2 inch diameter.

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