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1. [Amps] W3NQN bandpass filters, question. (score: 1): Author: "Martin Sole" <hs0zed@csloxinfo.com>; Date: Sun, 28 Nov 2010 11:39:16 +0700; Wonder if someone here might be able to help with some info on the W3NQN bandpass filters. Our club station has some we are using between the rig and amplifier (phew, worked the amp reference in nice; /archives//html/Amps/2010-11/msg00525.html (8,067 bytes)
2. Re: [Amps] W3NQN bandpass filters, question. (score: 1): Author: Larry Benko <xxw0qe@comcast.net>; Date: Sat, 27 Nov 2010 22:56:24 -0700; Martin, Yes, at least the 20m W3NQN filter changed from the original QST article to what was shipped from Array Solutions about 6 months ago. I have a plot that I can send you of the measured differe; /archives//html/Amps/2010-11/msg00526.html (9,638 bytes)
3. Re: [Amps] W3NQN bandpass filters, question. (score: 1): Author: "Jim Tonne" <Tonne@Comcast.Net>; Date: Sun, 28 Nov 2010 08:25:50 -0500; Martin: My browser butchered the schematic, as we all expected it would! Could you sketch it on paper and photograph or scan it? I am working with others on this general subject and am VERY intereste; /archives//html/Amps/2010-11/msg00527.html (7,137 bytes)
4. Re: [Amps] W3NQN bandpass filters, question. (score: 1): Author: Ron Youvan <ka4inm@tampabay.rr.com>; Date: Sun, 28 Nov 2010 14:56:10 +0000; If the coils aren't melted the only damage that I would expect is the high Voltage damaging some of the capacitors so I would replace all of them and test the results, then I would test (capacity and; /archives//html/Amps/2010-11/msg00528.html (8,062 bytes)
5. Re: [Amps] W3NQN bandpass filters, question. (score: 1): Author: Jim Brown <jim@audiosystemsgroup.com>; Date: Mon, 06 Dec 2010 12:43:26 -0800; It's important to remember that a filter is a passive network, and like ALL passive networks, its behavior depends on the source impedance and load impedance AT THE FREQUENCY OF INTEREST. Bench measu; /archives//html/Amps/2010-12/msg00042.html (8,228 bytes)

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