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4:1 balun for 160 to 10 meters


stack two t-80-2 powdered iron toroid cores together. use super glue
post 13 Feb 2022


Toroid & balun Links

213



A simple broadband 4:1 Balun Transformer, DH1TW
10 bifilar turns are mount on an Amidon FT-240-61 ferrite core

Balun 4:1 Para varios tipos de antenas
The balun performs this function! that is, it overcomes this inequality and improves signal transfer

UN-UN for longwire antenna, IW7EHC
The photo above shows the winding of about 70 turns and of 0.5 mm covered wire

The Dual-Ferrite-Bead 4:1 HF Balun
Ruthroff voltage balun design using a T200-2 Toroid core was selected

Binocular ferrite 9:1 balun RX Transformer
There are lots of good designs for matching transformers for receiving antennas. it's cheap and easy, and very high performance

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