Description
Pre-wound toroids that you can put into your own antenna balun box or however you want to mount it.
The actual toroid is similar to the FT140-43 and is pretty good up to 200 watts for the system of two toroids.
Made with 2 wires each over two toroids (7+1+7 turns each) and connected in the classic Guanella configuration.
Here is a document that explains a bit more about this construction >> Guanella balun 1 to 4
