At 06:30 PM 7/11/03 -0700, W4EF wrote:
>One design worth looking at is WX0B's 1:1 balun.
>He winds RG-142 on a large torroid and puts it in a plastic
>box. With this method you get a lot more inductance per
>pound of ferrite as compared to the beads, so you can use
>a lower mu material with better loss characteristics than
>type 77. It would be interesting to measure the choking Z
>of Jay's balun and compare it with one of those type 77
>bead baluns.
Perhaps someone can hook one to an MFJ259B (or better) and give us the numbers.
73, Pete N4ZR
The World HF Contest Station Database was updated 17 June 03.
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