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1. Topband: bn73 cores (score: 1): Author: "linda doyle" <ldoyle@gwi.net>; Date: Tue, 19 Oct 2004 08:15:44 -0500; gentlemen: several people have asked me what the winding data is for the bn73 cores when it comes to building pennants and flag antennas if someone knows would he or she please post it on this web I'; /archives//html/Topband/2004-10/msg00094.html (6,300 bytes)
2. Re: Topband: bn73 cores (score: 1): Author: "Tom Homewood" <w1to@adelphia.net>; Date: Fri, 22 Oct 2004 09:37:14 -0400; Hi John, Two turns on the primary and 8 or 9 turns on the secondary. 9 turns will give you roughly 1012 for the secondary impedance. Eight turns will give you 800 ohms on the secondary, so pick which; /archives//html/Topband/2004-10/msg00101.html (7,427 bytes)
3. RE: Topband: bn73 cores (score: 1): Author: "Logan Dietz" <cdietz@swbell.net>; Date: Fri, 22 Oct 2004 13:49:38 -0500; Do you put the turns on the opposite sides of the core? Hi John, Two turns on the primary and 8 or 9 turns on the secondary. 9 turns will give you roughly 1012 for the secondary impedance. Eight turn; /archives//html/Topband/2004-10/msg00103.html (8,389 bytes)
4. RE: Topband: bn73 cores (score: 1): Author: "CHARLES HUTTON" <charlesh3@msn.com>; Date: Fri, 22 Oct 2004 22:48:53 +0000; Logan: These cores are binoculars so there really isn't an opposite side. Check out http://www.w8ji.com/core_selection.htm and scroll down to the bottom and you'll see a picture of a transformer woun; /archives//html/Topband/2004-10/msg00106.html (9,475 bytes)
5. Re: Topband: bn73 cores (score: 1): Author: "Tom Homewood" <w1to@adelphia.net>; Date: Fri, 22 Oct 2004 19:43:14 -0400; If you look at the picture this link takes you to, you will see the leads are exiting on opposite sides of the binocular core. 73, Tom, W1TO <ldoyle@gwi.net>, is someone _____________________________; /archives//html/Topband/2004-10/msg00107.html (10,738 bytes)

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