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1. [Amps] Interesting websites (score: 1): Author: k5uj@hotmail.com (Rob Atkinson, K5UJ); Date: Sat, 11 Jan 2003 19:04:21 +0000; Hi everyone: I found a couple of websites I thought I'd pass along for anyone who has not seen them: This is a company a few miles from where I live: Richardson Electronics http://broadcast.rell.com/; /archives//html/Amps/2003-01/msg00088.html (7,341 bytes)
2. [Amps] MFJ inrush current protector? (score: 1): Author: k5uj@hotmail.com (Rob Atkinson, K5UJ); Date: Mon, 02 Dec 2002 14:51:11 +0000; Hi everyone: I'm looking for some way to put a current surge protector in my 240 v. line to my amp. I see that the MFJ catalog copy for their Inrush Current Protector (model ICP-240) says that it als; /archives//html/Amps/2002-12/msg00024.html (7,800 bytes)
3. [Amps] Re: MFJ inrush current protector? (score: 1): Author: k5uj@hotmail.com (Rob Atkinson, K5UJ); Date: Tue, 03 Dec 2002 01:38:13 +0000; Thanks everyone for getting back to me with your comments on the MFJ(Ameritron) unit & other ideas. One product that got by me and looks real good is a surge protector for 240 v. lines, the model 338; /archives//html/Amps/2002-12/msg00035.html (7,665 bytes)
4. [Amps] Neutral vs Ground Connection for 220 VAC (score: 1): Author: k5uj@hotmail.com (Rob Atkinson, K5UJ); Date: Fri, 13 Dec 2002 00:05:15 +0000; Just a small point for anyone who follows this advice to the letter: If you do this and your run is very long you'll get into rf grounding problems. A 20 or 30 ft. ground cable across a basement mak; /archives//html/Amps/2002-12/msg00179.html (8,439 bytes)
5. [Amps] 2 x 8877 amp (score: 1): Author: k5uj@hotmail.com (Rob Atkinson, K5UJ); Date: Wed, 06 Nov 2002 19:09:09 +0000; In case you're short of something new to look at: http://www.arrakis.es/~ulvinsl/eng/index.htm Note the specs say 2 x 8877s & it can supposedly run off of 115 v. ac? At what, 60 amps? Not around here; /archives//html/Amps/2002-11/msg00063.html (7,564 bytes)
6. [Amps] I4kly amp? (score: 1): Author: k5uj@hotmail.com (Rob Atkinson, K5UJ); Date: Wed, 11 Sep 2002 22:41:13 +0000; Does anyone have any experience with the I4KLY amp? Comments, opinions, speculation, tire kicking etc. welcome also. See: http://www.i4kly.com/ 73, Rob Atkinson K5UJ k5uj@hotmail.com ________________; /archives//html/Amps/2002-09/msg00083.html (6,438 bytes)
7. [Amps] A general question about why anodes get hot (score: 1): Author: k5uj@hotmail.com (Rob Atkinson, K5UJ); Date: Wed, 18 Sep 2002 17:53:00 +0000; Congratulations Kim on asking a very good question. One part of this hobby and an obligation all hams have (my opinion) is to acquire at least a minimal understanding of how their gear works. This is; /archives//html/Amps/2002-09/msg00130.html (8,385 bytes)
8. [Amps] RF ground (score: 1): Author: k5uj@hotmail.com (Rob Atkinson, K5UJ); Date: Tue, 16 Apr 2002 17:51:20 +0000; "On single point grounding, you can have as many grounds as it is convenient to have but you only want one lead connected to your equipment. If you have two leads like the power ground lead and your; /archives//html/Amps/2002-04/msg00392.html (8,944 bytes)
9. [Amps] 1.5 Kw SS HF amp reasonably priced...when? (score: 1): Author: k5uj@hotmail.com (Rob Atkinson, K5UJ); Date: Fri, 19 Apr 2002 22:30:42 +0000; I know a guy who works at one of the 50 kw clear channel MW stations in Chicago and they went to a solid state transmitter at some point in the past. You can go to the Harris website and look at them; /archives//html/Amps/2002-04/msg00502.html (8,364 bytes)
10. [Amps] HF1000 discontinued? (score: 1): Author: k5uj@hotmail.com (Rob Atkinson, K5UJ); Date: Mon, 25 Mar 2002 22:43:01 +0000; Looks like QRO has quit making their single 3-500 amp, the HF1000. It's no longer listed on their website. Rob Atkinson K5UJ k5uj@hotmail.com _________________________________________________________; /archives//html/Amps/2002-03/msg00581.html (6,465 bytes)
11. [Amps] 220VOLT LINE...HAMS CAN BE DANGEROUS (score: 1): Author: "Rob Atkinson, K5UJ" <k5uj@hotmail.com>; Date: Tue, 09 Dec 2003 18:49:50 +0000; Louie makes an important point. If you only think you know what you are doing, then you really don't. It cost me about $120 to have a pro come in and put in a line in conduit across my basement from; /archives//html/Amps/2003-12/msg00149.html (8,365 bytes)
12. [Amps] 3-500Z plate durability (score: 1): Author: "Rob Atkinson, K5UJ" <k5uj@hotmail.com>; Date: Fri, 12 Dec 2003 18:17:35 +0000; The Centurion has the 3-500 sockets in a cage (elevated platform) which I thought was a standard chassis setup for cooling. The muffin fan is mounted vertically inside the cabinet perpendicular to th; /archives//html/Amps/2003-12/msg00210.html (9,723 bytes)
13. [Amps] Big Solid State Amplifiers (score: 1): Author: "Rob Atkinson, K5UJ" <k5uj@hotmail.com>; Date: Sat, 13 Dec 2003 02:57:50 +0000; <<<The guys designing MF AM broadcast transmitters using arrays of switch mode power amplifiers are commercially driven. Modern transmitters in this field offer much greater efficiency, and thus lowe; /archives//html/Amps/2003-12/msg00218.html (8,545 bytes)
14. [Amps] Harris DAX and other solid state considerations (score: 1): Author: "Rob Atkinson, K5UJ" <k5uj@hotmail.com>; Date: Wed, 17 Dec 2003 15:34:07 +0000; The advantages of solid state amps seem to center on among other things, the idea that they can be made of rf modules and augmented for various power levels as the user desires. Yet no one has discus; /archives//html/Amps/2003-12/msg00286.html (10,270 bytes)
15. [Amps] re Opinions please (score: 1): Author: "Rob Atkinson, K5UJ" <k5uj@hotmail.com>; Date: Fri, 19 Dec 2003 16:30:12 +0000; I don't own any of these amps. I'd eliminate the 1200 right away because I would prefer the 3cx1500 over the 1200. the choice between the 1500 and 82 is more difficult. It depends on the operating yo; /archives//html/Amps/2003-12/msg00305.html (7,458 bytes)
16. [Amps] Eimac Tube Book Online (score: 1): Author: "Rob Atkinson, K5UJ" <k5uj@hotmail.com>; Date: Fri, 02 Jan 2004 22:44:22 +0000; In case this was not reported here B4, the Eimac book on care and feeding of RF power tubes is online at http://www.cpii.com/eimac/cf.htm Rob Atkinson K5UJ ___________________________________________; /archives//html/Amps/2004-01/msg00022.html (6,593 bytes)
17. [Amps] Centurion repair? (score: 1): Author: "Rob Atkinson, K5UJ" <k5uj@hotmail.com>; Date: Thu, 03 Jun 2004 17:18:33 +0000; Hi, Can anyone recommend an amp repair shop near the Chicago area that would handle a Ten Tec Centurion? I'd prefer to take a few hours and simply drive it to a shop, rather than go to the hassle and; /archives//html/Amps/2004-06/msg00009.html (7,265 bytes)
18. [Amps] Centurion cooling improvement ideas for AM service (score: 1): Author: "Rob Atkinson, K5UJ" <k5uj@hotmail.com>; Date: Tue, 24 Aug 2004 14:13:59 +0000; Hi folks, I am the owner of a 3 year old Ten Tec Centurion amp. This unit employs two 3-500ZGs on an elevated socket platform in the rear right side of the cabinet (when facing the front panel). On t; /archives//html/Amps/2004-08/msg00281.html (9,361 bytes)
19. Re: [Amps] Centurion cooling improvement ideas for AM service (score: 1): Author: "Rob Atkinson, K5UJ" <k5uj@hotmail.com>; Date: Wed, 25 Aug 2004 15:19:49 +0000; I did not even know about these. How much are they? If they are designed to connect by wire to a sensor that can be placed in the rf deck area it might be worth it to have one dedicated to monitoring; /archives//html/Amps/2004-08/msg00297.html (16,408 bytes)
20. Re: [Amps] Centurion cooling improvement ideas for AM service (score: 1): Author: "Rob Atkinson, K5UJ" <k5uj@hotmail.com>; Date: Wed, 25 Aug 2004 15:44:17 +0000; Mine idles at around 120 ma. The problem is cooling, efficiency and plate v. I imagine to run a 200 w. carrier, (amp tuned up for pep ~ 800 w.) it would be probably only 40 or 50% efficient. That mea; /archives//html/Amps/2004-08/msg00299.html (14,610 bytes)

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