Understanding, Building, and Using Baluns and Ununs

A couple of weeks ago, I had a post about needing to build a balun to use with my loop.   I am trying to do more remote operation, and obviously with a manual tuner it makes it difficult.   The manual tuner has a built in balun that allows me to use my loop with dual rg-6 coax.

Understanding, Building, and Using Baluns and UnunsI did a little research and found that many ham’s reccomended Understanding, Building, and Using Baluns and Ununs by Jerry Sevick, W2FMI.   I went on Ebay and found a copy for 49.00 and purchased it using Buy Now.  Well long story short, I never did receive the copy and after about 3 or 4 weeks Ebay refunded my money since the seller wouldn’t respond to my or their messages.

So I went back on Ebay and no copies were listed this time.   I checked Amazon and several people had copies, but most started at $150.00 or more.  So I went back and checked.  It was originally available from CQ magazine.   I went to their website and lo and behold, they just got in a new printing of the book.   So for $19.95 plus shipping you can purchase a brand new copy of it here.

I have my reading set out for me the next couple of nights.  I will let you know what I learn and more importantly what I build.


  • Thanks for the heads-up on “Understanding, Building and using Baluns and Ununs”. I’m in the UK and amazon.co.uk sellers were quoting 127GBP for a used copy. I order my new copy from CQ mag and that’s cost me under 45GBP with shipping.
    73 G4PDF

  • Universal Radio carries the latest edition of that book.
    You are going to enjoy reading it. It is packed with a lot of very good
    information. When you are finished reading that book, search, “K9YC” and
    sift through his material. I think the article you need to read there is
    about RFI in the audio. One of his articles really focuses on chokes and
    baluns. You’ll learn there that #31 material is one of the best choices to
    use in baluns and chokes. But you won’t go wrong by using #43 material.

    Good luck with your projects.
    Barry, KU3X

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