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1. [Amps] AL-572 high input SWR (score: 1): Author: K4RO Kirk Pickering <k4ro@darkstar.k4ro.net>; Date: Sun, 9 May 2004 08:46:20 -0500; A friend has asked me to look at his Ameritron AL-572. The amp quit functioning about 7 months ago, after two years of dependable service. The amplifier was used almost exclusively on 17 meter SSB. T; /archives//html/Amps/2004-05/msg00100.html (7,282 bytes)
2. Re: [Amps] AL-572 high input SWR (score: 1): Author: Gudguyham@aol.com; Date: Mon, 10 May 2004 07:17:55 EDT; HI Kirk, it sounds to me that you have a dead tube. There are 4 tubes in that amp, and if one is dead it will upset the whole apple cart. My bet is on one dead tube or maybe 2 of them. Time to start; /archives//html/Amps/2004-05/msg00109.html (7,373 bytes)
3. Re: [Amps] AL-572 high input SWR (score: 1): Author: R.Measures <r@somis.org>; Date: Mon, 10 May 2004 04:18:05 -0700; On May 9, 2004, at 6:46 AM, K4RO Kirk Pickering wrote: A friend has asked me to look at his Ameritron AL-572. The amp quit functioning about 7 months ago, after two years of dependable service. The a; /archives//html/Amps/2004-05/msg00110.html (8,331 bytes)
4. Re: [Amps] AL-572 high input SWR (score: 1): Author: K4RO Kirk Pickering <k4ro@k4ro.net>; Date: Wed, 29 Dec 2004 09:40:28 -0600; <following up from a question I posted a year ago...> The amp has been fixed by replacing all four tubes. It seems to work fine now, with full output and reasonable looking input SWR. Can someone tel; /archives//html/Amps/2004-12/msg00382.html (7,654 bytes)

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