Windom (OCF) baluns for kilowatt range OH7SV (See the enhanced OCF balun here)


Windom balun made with Amidon ferrite toroids.
Note: This design is for 80 meter as a lowest band. If you want to make it for 160 meter increase the toroidal core windings to 2 x 16 turns or use Amidon FT-140-43.
See also
the enhanced OCF 2014 balun here


Windom balun made with surplus ferrite rods