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[TowerTalk] unun transformer design

To: towertalk@contesting.com
Subject: [TowerTalk] unun transformer design
From: Jim Lux <jimlux@earthlink.net>
Date: Sun, 10 Sep 2006 14:36:03 -0700
List-post: <mailto:towertalk@contesting.com>
I'm looking for pointers at designing a broad band (3-30 MHz) phase 
reversing transformer, that can handle several hundred watts.  It 
doesn't have to be perfect. It's working into around 30-100 ohms.

I've got all the standard design equations, so what I'm looking for 
is practical advice on kinds of toroids have worked for folks in the 
past (size, material).

JIm


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