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1. [AMPS] Ameritron AL-811H (score: 1): Author: HAMKE4WY@aol.com (HAMKE4WY@aol.com); Date: Sun, 27 Aug 2000 10:51:51 EDT; My backup amp is an Ameritron AL-811H. I use it on 115 volt service and it appears to do well putting out 450 - 600 watts 10-160. My question, would it be to my advantage to wire for 230 service....e; /archives//html/Amps/2000-08/msg00420.html (7,916 bytes)
2. [AMPS] Ameritron AL-811H (score: 1): Author: charles@ab7sl.com (Charles); Date: Sun, 27 Aug 2000 13:29:47 -0700; According to my AL-811H owners manual there is no performance gain in wiring the amp for 240V operation. The amp is designed for 120V service. Replacing the 811A's with 572B's yields no performance a; /archives//html/Amps/2000-08/msg00423.html (9,609 bytes)
3. [AMPS] Ameritron AL-811H (score: 1): Author: da_kang@hotmail.com (Jeff Wolf); Date: Mon, 28 Aug 2000 02:41:23 GMT; The best advantage I can think of is that the 572 is continued in production, whereas the 811A was announced as being dropped. Makes me want to go with the 572B Toll_Free ___________________________; /archives//html/Amps/2000-08/msg00428.html (8,198 bytes)
4. [AMPS] Ameritron AL-811H (score: 1): Author: W8JI@contesting.com (Tom Rauch); Date: Mon, 28 Aug 2000 04:35:26 -0400; ...and where does that little bit of misinformation spring from? 73, Tom W8JI w8ji@contesting.com -- FAQ on WWW: http://www.contesting.com/FAQ/amps Submissions: amps@contesting.com Administrative re; /archives//html/Amps/2000-08/msg00432.html (8,032 bytes)
5. [AMPS] Ameritron AL-811H (score: 1): Author: da_kang@hotmail.com (Jeff Wolf); Date: Mon, 28 Aug 2000 12:32:50 GMT; Svetlanas website Last year Was discussed extensively on the amps reflector Have a good day, Tom... Strike two. Toll_Free _________________________________________________________________________ Ge; /archives//html/Amps/2000-08/msg00436.html (8,378 bytes)
6. [AMPS] Ameritron AL-811H (score: 1): Author: da_kang@hotmail.com (Jeff Wolf); Date: Mon, 28 Aug 2000 13:01:38 GMT; Taken from Svetlana website: http://www.svetlana.com/docs/dictionary.html About halfway down page. "811A--glass power triode, high mu, used in older transmitters and other equipment. Svetlana no lon; /archives//html/Amps/2000-08/msg00438.html (9,122 bytes)
7. [AMPS] Ameritron AL-811H (score: 1): Author: W8JI@contesting.com (Tom Rauch); Date: Mon, 28 Aug 2000 10:02:58 -0400; The truth is Svetlana hasn't made 572's for a while, and that's just as well. 572's are a chronic problem from that vendor. I suspect the 572 tubes are just tubes in inventory, since they actually q; /archives//html/Amps/2000-08/msg00441.html (9,231 bytes)
8. [AMPS] Ameritron AL-811H (score: 1): Author: W8JI@contesting.com (Tom Rauch); Date: Mon, 28 Aug 2000 10:33:11 -0400; I think this is an excellent example idea of how rumors get started. Apparently there were two sources, one was this: The other was the Svetlana web page. Come on now folks. Svetlana hasn't made any; /archives//html/Amps/2000-08/msg00442.html (9,463 bytes)
9. [AMPS] Ameritron AL-811H (score: 1): Author: N6BUU@aol.com (N6BUU@aol.com); Date: Mon, 28 Aug 2000 13:06:48 EDT; << ...and where does that little bit of misinformation spring from? 73, Tom W8JI w8ji@contesting.com a while back someone said that there are problems with svetlana 572b tubes?? hank, n6buu -- FAQ on; /archives//html/Amps/2000-08/msg00443.html (8,448 bytes)
10. [AMPS] Ameritron AL-811H (score: 1): Author: charles@ab7sl.com (Charles); Date: Mon, 28 Aug 2000 10:43:03 -0700; There are at least 2 sources of new 811A tubes that I have verified. 1. Ameritron sells a Chinese 811A they claim is better then the Svetlana's 2. RF Parts lists three sources for new 811A'a Charles; /archives//html/Amps/2000-08/msg00446.html (9,553 bytes)
11. [AMPS] Ameritron AL-811H (score: 1): Author: da_kang@hotmail.com (Jeff Wolf); Date: Mon, 28 Aug 2000 18:22:58 GMT; I have used the Chinese tubes in the past, and am not impressed. I preferred the Svetlana tubes over any of the Chinese tubes. Maybe Tom is getting tubes I haven't had the luxury of playing with. I; /archives//html/Amps/2000-08/msg00447.html (9,103 bytes)
12. [AMPS] Ameritron AL-811H (score: 1): Author: charles@ab7sl.com (Charles); Date: Mon, 28 Aug 2000 11:58:12 -0700; That was my point.....someone had posted they were all out of production. Charles T Johnston - AB7SL charles@ab7sl.com AB7SL- Ham Radio Pages - with 3D Art Gallery http://www.ab7sl.com is the band,; /archives//html/Amps/2000-08/msg00449.html (10,375 bytes)
13. [AMPS] Ameritron Al-811H (score: 1): Author: Fatchett.Mike@tci.com (Fatchett, Mike); Date: Mon, 5 May 1997 09:00:30 -0600; Anyone have any comments about this amp? -- FAQ on WWW: http://www.contesting.com/ampfaq.html Submissions: amps@contesting.com Administrative requests: amps-REQUEST@contesting.com Problems: owner-amp; /archives//html/Amps/1997-05/msg00018.html (7,426 bytes)
14. [AMPS] Ameritron Al-811H (score: 1): Author: measures@vc.net (Rich Measures); Date: Mon, 5 May 97 10:06:41 -0800; Before the Ameritron 811 amplifier began to be sold, I received a telephone call from an amateur radio operator in Simi Valley who writes product reviews for an amateur radio periodical. He told me; /archives//html/Amps/1997-05/msg00021.html (9,086 bytes)
15. [AMPS] Ameritron Al-811H (score: 1): Author: measures@vc.net (Rich Measures); Date: Mon, 5 May 97 11:42:33 -0800; I have no idea what the failure rate is, Mike. The apparently parasitic-related failure I saw may have been the only one--or it could have been one among many. You might try asking Mr. Rauch which t; /archives//html/Amps/1997-05/msg00022.html (7,725 bytes)
16. [AMPS] Ameritron Al-811H (score: 1): Author: grimm@alison.sbc.edu (Kenneth D. Grimm); Date: Mon, 05 May 1997 18:02:48 -0400; This is really boring. I don't know exactly how many times you have made your point, Rich, but I, for one, have heard your message many times more than I need to. You are beginning to sound like a st; /archives//html/Amps/1997-05/msg00025.html (8,264 bytes)
17. [AMPS] Ameritron Al-811H (score: 1): Author: measures@vc.net (Rich Measures); Date: Mon, 5 May 97 22:07:36 -0800; Because it is history, John. Erhorn's statement is in Chapter 13 in the 1995, 1996 and 1997 ARRL Handbook. Rauch's statements are in the Sept. 1994 issue of QST magazine. The bottom-line is that Han; /archives//html/Amps/1997-05/msg00028.html (8,436 bytes)
18. [AMPS] Ameritron Al-811H (score: 1): Author: G3SEK@ifwtech.demon.co.uk (Ian White, G3SEK); Date: Mon, 5 May 1997 22:30:23 +0100; Sorry, but Rich and his web pages are still getting this wrong - despite statements to the contrary from several people, including N7WS who made the measurements (the data are not in dispute, only th; /archives//html/Amps/1997-05/msg00030.html (9,692 bytes)
19. [AMPS] Ameritron Al-811H (score: 1): Author: w8jitom@postoffice.worldnet.att.net (w8jitom@postoffice.worldnet.att.net); Date: Wed, 7 May 1997 09:55:11 +0000; Hi Mike, Parasitics do not cause filaments to break in a tube. Those claims are silly. Filament breakage is due to mechanical shock or weak mechanical points in the filament. The original 811A Chine; /archives//html/Amps/1997-05/msg00042.html (8,454 bytes)
20. [AMPS] Ameritron Al-811H (score: 1): Author: measures@vc.net (Rich Measures); Date: Fri, 9 May 97 10:16:47 -0700; Why? The 811As in question were manufactured in China. The allegedly weak filaments survived shipping to the U.S. The 811As were being operated in the amplifier, sitting on a table, producing normal; /archives//html/Amps/1997-05/msg00055.html (8,852 bytes)

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