Bill, the G3TXQ website has the balun info you seek.
Dave WX7G
On Nov 17, 2012 10:58 AM, "Bill Conwell (home)" <bill@conwellpdx.com> wrote:
> I've got an FT-240-43 core on which I'd like to wind RG58 to make a choke
> for the feedpoint of my inverted-L.
>
>
>
> I've seen articles that studied the optimum number of turns for air-core
> chokes, but don't recall seeing any for toroidal chokes. Can anyone offer
> a
> pointer (or empirical data) that might guide me. (20 turns?)
>
>
>
> (I sometimes also use the antenna for 80m - disconnecting part of the
> horizontal leg.)
>
>
>
> Tnx,
>
>
>
> /Bill, K2PO
>
> _______________________________________________
> Topband reflector - topband@contesting.com
>
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