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1. [Amps] Trade: 3 solid state HF amps for 1 (score: 1): Author: "qrv@kd4e.com" <qrv@kd4e.com>; Date: Sat, 13 Apr 2013 17:02:29 -0400; I have three solid state (28v nom.) eight MRF422 (1200w) HF amps (one has 20, 40, & 80m filters), two power supplies, and lots of docs. These are good 160-10m, I don't know about 6m use. I would like; /archives//html/Amps/2013-04/msg00103.html (7,894 bytes)
2. Re: [Amps] Trade: 3 solid state HF amps for 1 (score: 1): Author: "qrv@kd4e.com" <qrv@kd4e.com>; Date: Sun, 14 Apr 2013 16:39:54 -0400; Jim, Great suggestion! Added to my list. I'll run whatever amp I use through a MFJ-998 autotuner. It used to be that the MRF458 and MRF454 were real hard to get, and very costly, but it appears that; /archives//html/Amps/2013-04/msg00114.html (8,452 bytes)
3. Re: [Amps] Great Stuff (score: 1): Author: "qrv@kd4e.com" <qrv@kd4e.com>; Date: Wed, 17 Apr 2013 23:16:30 -0400; That would be this: http://www.apexelectronic.com/ Apex Electronics in Sun Valley -- Thanks! & 73, KD4E.com David Colburn nevils-station.com I don't google I SEARCH! duckduckgo.com Network: groups.ya; /archives//html/Amps/2013-04/msg00171.html (7,642 bytes)
4. Re: [Amps] 572's (score: 1): Author: "qrv@kd4e.com" <qrv@kd4e.com>; Date: Thu, 02 May 2013 13:40:42 -0400; Many Hams help other Hams via repair and/or mods that they cannot do themselves. Also, Carl is a contester & in that app gear gets stressed to the max! Like Carl, I have been buying 572B's, by the ca; /archives//html/Amps/2013-05/msg00014.html (8,217 bytes)
5. Re: [Amps] 572's (score: 1): Author: "qrv@kd4e.com" <qrv@kd4e.com>; Date: Thu, 02 May 2013 14:10:00 -0400; Y'all can hear those tubes screaming for mercy from miles away from Jeremy Hill! ;-) I dont run QRP in contests.... Carl KM1H -- Thanks! & 73, KD4E.com David Colburn nevils-station.com I don't google; /archives//html/Amps/2013-05/msg00016.html (8,175 bytes)
6. Re: [Amps] 572's (score: 1): Author: "qrv@kd4e.com" <qrv@kd4e.com>; Date: Fri, 03 May 2013 11:37:24 -0400; Is it a real amp if the tubes don't have handles and the lights in the neighborhood don't dim when you key it? ;-) You're right! Damn the cost - full speed ahead. Buy an Alpha 9500 or a Henry 8K :-); /archives//html/Amps/2013-05/msg00042.html (8,877 bytes)
7. Re: [Amps] chassis maker? (score: 1): Author: "qrv@kd4e.com" <qrv@kd4e.com>; Date: Fri, 03 May 2013 14:43:22 -0400; Corrected URL: http://www.par-metal.com/ Par-Metals.com Mike, K4EAR Howdy.. So, some us used to use Charlie Byers, K3IWK, for our various aluminum box and chassis special needs. He did a nice job and; /archives//html/Amps/2013-05/msg00049.html (7,568 bytes)
8. Re: [Amps] chassis maker? (score: 1): Author: "qrv@kd4e.com" <qrv@kd4e.com>; Date: Sat, 04 May 2013 09:45:59 -0400; You surely have some Tech schools nearby with shops. They used to take on small projects for a fee which gave the students some experience & resume's and brought a little extra money into the shop bu; /archives//html/Amps/2013-05/msg00068.html (10,408 bytes)
9. Re: [Amps] Dayton Hamvention list (score: 1): Author: "qrv@kd4e.com" <qrv@kd4e.com>; Date: Mon, 13 May 2013 13:42:59 -0400; David Colburn KD4E HF amps (28v 1200w surplus rack mount w/power supplies) Ten Tec, Icom, Heathkit, Atlas, Yaesu, Lafayette, Motorola tube-type AM car radio, tubes, test gear, etc. Location # FW 2337; /archives//html/Amps/2013-05/msg00150.html (9,682 bytes)
10. [Amps] Parting-Out 1.2KW SS Amp (score: 1): Author: "qrv@kd4e.com" <qrv@kd4e.com>; Date: Mon, 03 Jun 2013 10:00:06 -0400; I have three 1.2KW HF amps originally used in maritimerelated service. They each use four modules containing two-each MRF-422. Splitter-combiners result in 300 x 4 = 1200w (thus each module is good f; /archives//html/Amps/2013-06/msg00018.html (7,603 bytes)
11. Re: [Amps] Blade power supply (score: 1): Author: "qrv@kd4e.com" <qrv@kd4e.com>; Date: Fri, 05 Jul 2013 18:48:39 -0400; Mike, The ones I have seen the Hams hacked-out the original connectors and installed their own. David Is there an available connector to connect the input 220 and output 50 volt connectors to the out; /archives//html/Amps/2013-07/msg00022.html (7,543 bytes)
12. Re: [Amps] Shortwave Returns? [Was: testing the biggest one] (score: 1): Author: "qrv@kd4e.com" <qrv@kd4e.com>; Date: Fri, 02 Aug 2013 19:47:03 -0400; Given the rush to government-censorship of freedom of speech all across the world the era of independent Shortwave transmitters should be returning. How hard is it to get a license to broadcast on Sh; /archives//html/Amps/2013-08/msg00007.html (8,728 bytes)
13. Re: [Amps] testing the biggest one (score: 1): Author: "qrv@kd4e.com" <qrv@kd4e.com>; Date: Fri, 02 Aug 2013 20:25:35 -0400; There already is at least one alternative "internet", primarily for a sub-group of education, government, & corporate entities plus a variety of portable/localized Internet-replacements under develop; /archives//html/Amps/2013-08/msg00010.html (9,110 bytes)
14. Re: [Amps] Shortwave Returns? [Was: testing the biggest one] (score: 1): Author: "qrv@kd4e.com" <qrv@kd4e.com>; Date: Sat, 03 Aug 2013 13:45:26 -0400; Actually, censorship of pro-civilization speech has increased while anti-civilized speech has prospered. Disgusting, insulting, degrading garbage spews forth while country after country imposes "poli; /archives//html/Amps/2013-08/msg00029.html (11,670 bytes)
15. Re: [Amps] Shortwave Returns? [Was: testing the biggest one] (score: 1): Author: "qrv@kd4e.com" <qrv@kd4e.com>; Date: Sat, 03 Aug 2013 15:55:42 -0400; Many countries still don't allow their citizens to freely leave. Americans have no place to go that are more free - we have to restore freedoms here. On the whole across the world healthy sustainable; /archives//html/Amps/2013-08/msg00034.html (10,862 bytes)
16. Re: [Amps] S/S Amp's (score: 1): Author: "qrv@kd4e.com" <qrv@kd4e.com>; Date: Thu, 12 Sep 2013 12:14:40 -0400; Why are Hams still rf-spamming 160 & 80m with AM carriers when a DSB suppressed-carrier signal is just as good, uses less power, and may be sync-detected to remove flutter, etc? I know, I know, ... n; /archives//html/Amps/2013-09/msg00080.html (7,879 bytes)
17. Re: [Amps] S/S Amp's (score: 1): Author: "qrv@kd4e.com" <qrv@kd4e.com>; Date: Thu, 12 Sep 2013 14:51:03 -0400; That's why "reduced carrier" versus "eliminated carrier". Synchronous detection requires either a carrier, can be reduced in amplitude, to lock on or a somewhat complex quadrature phase detection sys; /archives//html/Amps/2013-09/msg00085.html (7,973 bytes)
18. Re: [Amps] MRFE6VP61K25HR6 (score: 1): Author: "qrv@kd4e.com" <qrv@kd4e.com>; Date: Wed, 18 Sep 2013 20:21:24 -0400; Bill, Isn't the MRFE6VP61K25HR6 device rated only 20% duty cycle, pulsed, at 1KW? What affordable device will actually do 1KW SSB (ICAS) Output 1.8 - 30MHz on one of these boards? How clean would suc; /archives//html/Amps/2013-09/msg00226.html (9,198 bytes)
19. Re: [Amps] Direct rectification of AC mains to derive the amp, VDD, supply (score: 1): Author: "qrv@kd4e.com" <qrv@kd4e.com>; Date: Thu, 19 Sep 2013 15:29:32 -0400; If you want "sensitive" try the newest breaker technology - mandated in many places AFCI. Local contractors say they are so hyper-sensitive they install them for inspection then replace them with GFI; /archives//html/Amps/2013-09/msg00249.html (11,514 bytes)
20. Re: [Amps] Participate in NASA experiment (score: 1): Author: "qrv@kd4e.com" <qrv@kd4e.com>; Date: Mon, 07 Oct 2013 19:17:05 -0400; May not be "moot" as only 17-18% of government is impacted by this faux-shutdown. Unless the President specifically-targets this it will likely be unaffected. Right now he seems to be targeting moume; /archives//html/Amps/2013-10/msg00115.html (9,454 bytes)

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