Category

Balun Toroid

$3.25
(Inc. Tax)
$2.70
(Ex. Tax)

NOTE Customers outside the Eu pay the lower (Ex. Tax) prices!

(7 reviews) Write a Review
SKU:
TORD-100
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Balun Toroid

Toroid for use as HF/VHF balun, unun

A professional-grade core selected and tested by SOTABEAMS for 125 Watt 1:1 and 4:1 baluns; 3 - 50 MHz.

For higher power use, the cores can be stacked. These toroids are also great for combatting RFI problems.

 

Toroid cores are brittle so avoid banging them against hard surfaces.

 

Toroid core weight = 14 grams

OD = 29 mm ID = 19 mm

Equivalent to type 43 material

 

Typical Application

1:1 Baluns should be wound as shown in the diagram below.

Each pass through the hole in the toroid is a turn.

For 50MHz 3 + 2 turns of RG58 is recommended.

For HF 7 +6 turns of RG174 is recommended.

Hold the ends in place with cable ties.

 

balun-sch1.jpg

 

 

7 Reviews Hide Reviews Show Reviews

  • 5
    Balun toroid

    Posted by John Bisson G0MHF on 17th Jan 2020

    Nice example, easy to wind with instructions shown on the website. Not actually in use yet, but I’m sure it will work well as a 1:1 balun. Good deivery & service.

  • 5
    Balun Toroid

    Posted by Alan Webb on 27th Jan 2019

    I like to make my own dipoles etc and having purchased these Toroid’s I find them very useful and can take up to 100w . Fast delivery. Recommended

  • 5
    Useful Torroid

    Posted by Nick on 20th Oct 2017

    I bought this to make my own 9:1 UnUn for my end-fed wire antenna. It was big enough to get the necessary number of turns which was helpful. Basically it just works! The UnUn tames the impedance so that I can tune 160 - 12 m. I would certainly buy it again.

  • 5
    Good price, good funktion.

    Posted by Jenny Östlund on 7th Feb 2017

    I have used some of these rings instead for FT 118-43 and it seems to be similar values.

  • 5
    Toroid

    Posted by john mcnerlin on 4th Apr 2016

    This is the real deal, good quality toroids at the right price.They come well packaged ready for my project.

  • 4
    As expected

    Posted by Pedro, CT1DBS on 16th Feb 2016

    The toroid do the job. Not a fake toroid as many in today's market!

    1:1 to 1:1.3 from 3.5 to 28 Mhz.

    Happy with it and I would buy again if necessary.

  • 5
    Balun core

    Posted by Unknown on 7th Jan 2016

    Just the job.
    Light weight and easy to wind.

    Gave a 1:1 on 80m with no real measurable return current.
    1.3:1 on 10m both at 100W
    Happy with that.

    Would recommend this core to others