9:1 balun

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9:1 balun

9:1 balun

Primary winding 30 turns,secondary winding 10 turns,after checking for proper solder joints, you may pot all components in epoxy

post 13 Mar 2025

Toroid & balun Links →

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How to Build an UNUN
If you want to built your own UNUN, up F114-67 ferrite core, a few feet of #14 enameled copper wire enough for 9, bifilar turns

Homebrew
A universal matching transformer giving 1:1; 4:1 balanced and 9:1 unbalanced

il balun balanced - unbalanced
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Toroid T200 for long wire antenna
Balun unun to feed a long wire antenna ideally without a tuner a 9:1 voltage unun design using a T200-2 Toroid core was selected

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