[TowerTalk] Balun filler

[Pete Smith]

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
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