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1. Re: Topband: Need Un-Un Info (score: 1): Author: Björn Mohr <bm@broadcast.se>; Date: Mon, 21 May 2007 06:37:08 +0200; at 23 Ohms, so a 2.25:1 would be ideal. I use 50 Ohm coax as feedline. I have the Amidon T-200-2 cores. Has anybody ever used this core for a topband Un-Un? If so, how many trifilar turns and what si; /archives//html/Topband/2007-05/msg00059.html (7,404 bytes)
2. Topband: Need Un-Un Info (score: 1): Author: "Jo,YC0LOW" <yc0low@cbn.net.id>; Date: Mon, 21 May 2007 07:25:38 +0700; I plan construct an Un-Un for my inverted-L which has feedpoint impedance at 23 Ohms, so a 2.25:1 would be ideal. I use 50 Ohm coax as feedline. I have the Amidon T-200-2 cores. Has anybody ever used; /archives//html/Topband/2007-05/msg00058.html (6,576 bytes)

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