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[TowerTalk] Balun filler

To: <towertalk@contesting.com>
Subject: [TowerTalk] Balun filler
From: W4EF@dellroy.com (Michael Tope)
Date: Fri Jul 11 21:44:24 2003
The two I purchased are up high in the air, otherwise
I would do as you suggested - hi hi.

Mike,
W4EF...................................................................

----- Original Message -----
From: "Pete Smith" <n4zr@contesting.com>
To: "Michael Tope" <W4EF@dellroy.com>; <towertalk@contesting.com>
Sent: Friday, July 11, 2003 6:33 PM
Subject: Re: [TowerTalk] Balun filler


> 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.
> Are you current? www.pvrc.org/wcsd/wcsdsearch.htm
>
>
>
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>
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>
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