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Total 5 documents matching your query.

1. Topband: Any way to check isolation transformer for FCP (score: 1): Author: Andrejs Pankins <yl2qn.andy@gmail.com>; Date: Sun, 17 Jan 2016 01:44:21 +0200; Hello, Need your help. For a long time can't get working FCP for my Inverted L. I'm looking for some way to check quality of my homemade isolation transformer. I'm connect primary to 50 Ohm dummy loa; /archives//html/Topband/2016-01/msg00444.html (7,445 bytes)
2. Re: Topband: Any way to check isolation transformer for FCP (score: 1): Author: Guy Olinger K2AV <k2av.guy@gmail.com>; Date: Sat, 16 Jan 2016 23:04:09 -0500; Hi Andy, I'll be responding to you off reflector tomorrow. 73, Guy K2AV -- Sent via Gmail Mobile on my iPhone _________________ Topband Reflector Archives - http://www.contesting.com/_topband; /archives//html/Topband/2016-01/msg00454.html (8,350 bytes)
3. Re: Topband: Any way to check isolation transformer for FCP (score: 1): Author: Andrejs Pankins <yl2qn.andy@gmail.com>; Date: Sun, 17 Jan 2016 18:24:07 +0200; William, Thanks for idea. Are you absolutely right - 5uH is too small for 160m. Looks like I have a wrong toroid. After playing with amidon toroid calculator, I found that 20 turns on T300 will give; /archives//html/Topband/2016-01/msg00462.html (9,004 bytes)
4. Re: Topband: Any way to check isolation transformer for FCP (score: 1): Author: Guido Tedeschi <guidoted@gmail.com>; Date: Sun, 17 Jan 2016 17:58:52 +0100; It sounds strange, because to have 45,6 uH with 20 turns the Al should be 1140. With T300A-2 Amidon data (Al = 228), with 20 turns you should have 9,12 uH (103 ohm of Xl at 1,8 MHz). 73 de Guido, ik2; /archives//html/Topband/2016-01/msg00464.html (10,041 bytes)
5. Re: Topband: Any way to check isolation transformer for FCP (score: 1): Author: Andy - YL2QN <yl2qn.andy@gmail.com>; Date: Mon, 18 Jan 2016 11:52:00 +0200; Guido, 1140. Thanks a lot. Sure I was wrong with inductance. For 20 turns: T-300A-2 AL=228, L=9.12uH T-300-2 AL=114, L=4.56uH To get same inductance on T-300-2 need to have 28T. But coupling will bet; /archives//html/Topband/2016-01/msg00493.html (7,665 bytes)

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