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Total 5 documents matching your query.

1. Topband: Binocular transformer design (score: 1): Author: w2pm@aol.com; Date: Sun, 04 Jan 2009 08:43:24 -0500; I am making a few tansformers for a 75 to 500 ohm K9AY loop which per W8JI's design in ON4UN's book call for a 5 pass secondary - which is 2 1/2 turns through the binocular core. The problem however; /archives//html/Topband/2009-01/msg00016.html (7,792 bytes)
2. Re: Topband: Binocular transformer design (score: 1): Author: "Dan Zimmerman N3OX" <n3ox@n3ox.net>; Date: Sun, 4 Jan 2009 18:54:37 -0500; On the low bands you're probably talking an ohm or less of stray inductive reactance. Just try it. I just did. I took about three inches of wire and put that across my MFJ-259B It reads 0+j0. When I; /archives//html/Topband/2009-01/msg00022.html (9,079 bytes)
3. Re: Topband: Binocular transformer design (score: 1): Author: "Jim Brown" <jim@audiosystemsgroup.com>; Date: Sun, 04 Jan 2009 20:08:05 -0800; Ferrite chokes are VERY difficult to measure with reasonable accuracy. Some of the difficulties and a couple of good measurement methods are described in the tutorials on my website. The principal re; /archives//html/Topband/2009-01/msg00027.html (8,584 bytes)
4. Re: Topband: Binocular Transformer Design (score: 1): Author: Dennis W0JX <w0jx@yahoo.com>; Date: Sun, 4 Jan 2009 21:09:01 -0800 (PST); Pete: I can tell you from experience that a half-turn situation with a binocular core really screws up the balance of the transformer.狢 made several identical xformers and hooked them up back to bac; /archives//html/Topband/2009-01/msg00028.html (8,143 bytes)
5. Re: Topband: Binocular transformer design (score: 1): Author: "James Wolf" <jbwolf@comcast.net>; Date: Mon, 5 Jan 2009 00:29:30 -0500; I am making a few tansformers for a 75 to 500 ohm K9AY loop which per W8JI's design in ON4UN's book call for a 5 pass secondary - which is 2 1/2 turns through the binocular core. The problem however; /archives//html/Topband/2009-01/msg00029.html (8,871 bytes)

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