elfa wrote in :

You're too far ahead of me RHF. I haven't a clue as to how they work.
All I wanted to do was just make one 2 times as big as on in a junk
radio to see if I can get stations better based on size of antenna.
At this point, I can't find a website that even explains windings etc.


My God, can't anybody do anything any more without having to consort with
the Internet and get permission from the Netizens?

You wind some wire on a ferrite bar. You put a variable capacitor across it
and see how it tunes. You adjust the windings until you get what you are
looking for.

Do you need toilet training instructions, as well?