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1. [AMPS] 8122 (score: 1): Author: John_Nelson@compuserve.com (John Nelson); Date: Mon, 10 Sep 2001 15:07:13 -0400; These devices always seem to have a reputation for bad behaviour. Has it ever been established whether the tubes themselves are flaky or is it just that they've habitually been used with inadequate p; /archives//html/Amps/2001-09/msg00190.html (6,664 bytes)
2. [Amps] 8122 (score: 1): Author: john.brewer@us.schneider-electric.com; Date: Tue, 14 Aug 2007 15:07:47 -0400; Was used in NCL-2000..... John K5MO _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps; /archives//html/Amps/2007-08/msg00085.html (6,354 bytes)
3. Re: [Amps] 8122 (score: 1): Author: Manfred Mornhinweg <mmornhin@gmx.net>; Date: Sun, 15 Mar 2009 18:54:08 +0000; Hi Carl, Ouch! My mistake, sorry... Mine doesn't... And didn't. As I got it, it idled at 200mA in SSB, and no idle current in CW. In CW mode it required a drive above a few watts to START delivering; /archives//html/Amps/2009-03/msg00427.html (12,194 bytes)
4. Re: [Amps] 8122 (score: 1): Author: "Peter Voelpel" <df3kv@t-online.de>; Date: Sun, 15 Mar 2009 20:23:26 +0100; Hi Manfred, The 6146 (QE05/40) which is a beam power tetrode has 20W allowable dissipation in CCS service. According to my Valvo tube manual idle current at 750V is 12mA, that is 9W, almost 50% of di; /archives//html/Amps/2009-03/msg00429.html (7,853 bytes)
5. Re: [Amps] 8122 (score: 1): Author: Manfred Mornhinweg <mmornhin@gmx.net>; Date: Tue, 17 Mar 2009 01:21:56 +0000; Hi Peter, Wasn't it 25W, or was that only for ICAS? Interesting. I hadn't done such a comparison, and indeed the idle dissipation is high on all of them! But in checking data sheets, I found some int; /archives//html/Amps/2009-03/msg00457.html (8,420 bytes)
6. Re: [Amps] 8122 (score: 1): Author: "Alex Eban" <alexeban@gmail.com>; Date: Tue, 17 Mar 2009 09:34:53 +0200; ..well, I'd like only to add some info about the last item. FET's Do need quite a high idling current, depending on your linearity demands: for really low IMD performance you need also currents in th; /archives//html/Amps/2009-03/msg00459.html (9,710 bytes)

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