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1. [Amps] Amplifier lifetime (score: 1): Author: Catherine James <catherine.james@att.net>; Date: Wed, 4 Oct 2017 15:05:28 +0000 (UTC); I expect my SB-220 will be operating for my entire ham radio lifetime. And I'm not retired, so that will be decades. I fire it up at least once a month to keep it gettered. I expect my AL-811H will a; /archives//html/Amps/2017-10/msg00044.html (8,258 bytes)
2. Re: [Amps] Amplifier lifetime (score: 1): Author: Manfred Mornhinweg <manfred@ludens.cl>; Date: Wed, 04 Oct 2017 19:44:43 +0000; _Good_ equipment and machinery should be designed and built well enough to work all the way until becoming obsolete, which is when the owner decides to replace it because new-technology equipment sim; /archives//html/Amps/2017-10/msg00046.html (8,798 bytes)
3. Re: [Amps] Amplifier lifetime (score: 1): Author: RCM <robrk@nidhog.net>; Date: Wed, 4 Oct 2017 18:30:22 -0400; Age check Maybe someone will come out with a 3-500 Nuvistor. _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps; /archives//html/Amps/2017-10/msg00047.html (7,215 bytes)
4. Re: [Amps] Amplifier lifetime (score: 1): Author: Lee Bahr <L@w0vt.us>; Date: Wed, 4 Oct 2017 17:33:10 -0500; I'm 79. Anyone got any suggestions as to how long an amplifier should last for me? Lee, w0vt I expect my SB-220 will be operating for my entire ham radio lifetime. And I'm not retired, so that will; /archives//html/Amps/2017-10/msg00048.html (7,679 bytes)
5. Re: [Amps] Amplifier lifetime (score: 1): Author: Steve Wright <stevewrightnz@gmail.com>; Date: Thu, 5 Oct 2017 12:00:18 +1300; I doubt you mind either way! ;) _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps; /archives//html/Amps/2017-10/msg00049.html (7,294 bytes)
6. Re: [Amps] Amplifier lifetime (score: 1): Author: Mark Schoonover <mark@ka6wke.net>; Date: Wed, 4 Oct 2017 18:26:47 -0700; It should last at least one day after you become a SK. :) _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps; /archives//html/Amps/2017-10/msg00050.html (8,014 bytes)
7. Re: [Amps] Amplifier lifetime (score: 1): Author: Bill Turner <dezrat@outlook.com>; Date: Thu, 5 Oct 2017 02:32:30 +0000; -- ORIGINAL MESSAGE --(may be snipped) REPLY: Baby your amp, run it below its ratings, don't hot switch it and watch your SWR and it should last nearly forever. Electronic parts do fail, just don't h; /archives//html/Amps/2017-10/msg00051.html (8,227 bytes)
8. Re: [Amps] Amplifier lifetime (score: 1): Author: Manfred Mornhinweg <manfred@ludens.cl>; Date: Thu, 05 Oct 2017 14:41:26 +0000; My NCL-2000 is now close to half a century old, and still works perfectly. I got it cheaply, roughly 20 years ago, when it was in bad condition due to dead filter caps, some dead bleeder resistors, a; /archives//html/Amps/2017-10/msg00056.html (8,574 bytes)
9. Re: [Amps] Amplifier lifetime (score: 1): Author: Jim Garland <4cx250b@miamioh.edu>; Date: Thu, 5 Oct 2017 08:59:49 -0600; Hi Manfred, I've got an NCL-2000 that has a similar history to yours. Like you, I seldom use it, but think it is a well-designed amplifier and arguably the nicest styling of any amp before or since.; /archives//html/Amps/2017-10/msg00057.html (10,452 bytes)
10. [Amps] Amplifier lifetime (score: 1): Author: "Jim Thomson" <jim.thom@telus.net>; Date: Thu, 5 Oct 2017 12:13:26 -0700; <Hi Manfred, <I've got an NCL-2000 that has a similar history to yours. Like you, I seldom use it, but think it is a well-designed amplifier and arguably the nicest styling of any amp before or since; /archives//html/Amps/2017-10/msg00060.html (8,851 bytes)
11. Re: [Amps] Amplifier lifetime (score: 1): Author: Manfred Mornhinweg <manfred@ludens.cl>; Date: Thu, 05 Oct 2017 22:00:52 +0000; Hi Jim, and Jim, Interestingly, my NCL-2000 blower is rather quiet and has never posed an irritation. I'd be interested in hearing comments on that issue from other owners. I would specially like to; /archives//html/Amps/2017-10/msg00062.html (13,361 bytes)
12. Re: [Amps] Amplifier lifetime (score: 1): Author: "Gary Smith" <Gary@ka1j.com>; Date: Thu, 05 Oct 2017 20:33:49 -0400; FWIW, The 77SX I bought some long time back had a Vac relay that got stuck. I tried a new coil in it and it proved the contacts had welded shut. I bought a used silicone RJ-1A from Max-Gain and repla; /archives//html/Amps/2017-10/msg00067.html (8,569 bytes)
13. Re: [Amps] Amplifier lifetime (score: 1): Author: Bill Turner <dezrat@outlook.com>; Date: Fri, 6 Oct 2017 03:53:07 +0000; One thing a person can do to extend relay lifetime is to verify there is no hot switching going on. Many modern rigs have a built in delay between amp keying and actual RF output, but many older rig; /archives//html/Amps/2017-10/msg00071.html (8,895 bytes)
14. Re: [Amps] Amplifier lifetime (score: 1): Author: "David Harmon" <k6xyz@sbcglobal.net>; Date: Fri, 6 Oct 2017 01:47:39 -0500; Array Solutions made a 'bias switching' box that essentially has the amp antenna relay keyed all the time and the bias was switched. I know of a guy that had one installed in his Henry 3K-A and I was; /archives//html/Amps/2017-10/msg00073.html (10,093 bytes)
15. Re: [Amps] Amplifier lifetime (score: 1): Author: Roger <ai7rogerroger@gmail.com>; Date: Fri, 6 Oct 2017 03:47:53 -0700; Bill, Your "logic box" is called a sequencer, Does exactly as you describe. Most commonly used for EME or with transceivers and amplifiers. Readily available from many sources. 73, Roger W7TZ CN83ia; /archives//html/Amps/2017-10/msg00074.html (11,620 bytes)
16. Re: [Amps] Amplifier lifetime (score: 1): Author: Roger <ai7rogerroger@gmail.com>; Date: Fri, 6 Oct 2017 03:49:05 -0700; Transverters rather than transceivers. 73, Roger W7TZ CN83ia Grid Busters w7tz.webs.com _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.c; /archives//html/Amps/2017-10/msg00075.html (12,126 bytes)
17. Re: [Amps] Amplifier lifetime (score: 1): Author: Mark Robinson <markrob@mindspring.com>; Date: Fri, 6 Oct 2017 14:47:10 -0400; DX Engineering make this https://www.dxengineering.com/parts/dxe-tvsu-1b I am using it on my TS930S since it used to cause a hot switching software trip on the Acom 1000. Mark N1UK One method I have; /archives//html/Amps/2017-10/msg00088.html (9,270 bytes)
18. Re: [Amps] Amplifier lifetime (score: 1): Author: "Paul Christensen" <w9ac@arrl.net>; Date: Fri, 6 Oct 2017 15:07:21 -0400; Bill's suggestion of using a scope to evaluate system timing is a good one. Hot-switching does not always occur on "make," meaning the leading edge of the CW keyed element. For example, the Icom 7300; /archives//html/Amps/2017-10/msg00089.html (11,029 bytes)
19. Re: [Amps] Amplifier lifetime (score: 1): Author: "Carl" <km1h@jeremy.qozzy.com>; Date: Fri, 6 Oct 2017 21:22:18 -0400; <Hi Manfred, <I've got an NCL-2000 that has a similar history to yours. Like you, I seldom use it, but think it is a well-designed amplifier and arguably the nicest styling of any amp before or since; /archives//html/Amps/2017-10/msg00100.html (10,824 bytes)
20. [Amps] Amplifier Lifetime (score: 1): Author: Mike Dishop via Amps <amps@contesting.com>; Date: Sat, 7 Oct 2017 15:54:31 +0000 (UTC); Manfred has proven what a rotten businessman I am. I have to admit I'm beaten. He stated that companies design the product to fail soon after you buy it and to be obsolete. I, on the other hand, des; /archives//html/Amps/2017-10/msg00104.html (12,626 bytes)

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