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1. Re: [Amps] LK-500-NTC v. SB-220 v. Clipperrton L (score: 1): Author: "Fortra" <fortra@siol.net>; Date: Mon, 5 Oct 2009 11:21:30 +0200; Hi Bill, goood and sound advice. That is exactly what i did, sold L7, TL-922, Dentron MLA-2500. Bought Alpha 91b, a pure joy of the amp., and never looked back! As said, there are no free lunches!! R; /archives//html/Amps/2009-10/msg00084.html (9,078 bytes)
2. Re: [Amps] 8873 Amp (score: 1): Author: "Fortra" <fortra@siol.net>; Date: Wed, 1 Jul 2009 23:48:52 +0200; Hi Carl and Roger, that is likely, that Heahtkit did some "odd" things at the Amateur end era! Remebered once a bid on ebay, for Heathkit SB 240 !! Must have pictures on the other computer. The two h; /archives//html/Amps/2009-07/msg00026.html (8,470 bytes)
3. Re: [Amps] 8874? (score: 1): Author: "Fortra" <fortra@siol.net>; Date: Wed, 1 Jul 2009 21:16:42 +0200; Roger, i would not bet 100 %, but as i recalled, Heathkit never made an amp with PAIR of 8873's. Yes they did one model, SB-230 with a single 8873. Regards, Nermin S58DX -- Original Message -- From:; /archives//html/Amps/2009-07/msg00020.html (15,602 bytes)
4. Re: [Amps] 3-500zs to 8877 (score: 1): Author: "Fortra" <fortra@siol.net>; Date: Wed, 21 Jan 2009 18:08:40 +0100; Hsu, you have probably thought about 3CX1200D7. That tube has the sane socket as 3-500Z. Nermin S58DX -- Original Message -- From: "Hsu" <hsu4qro@gmail.com> To: "Val Erwin" <val.erwin@sbcglobal.net>; /archives//html/Amps/2009-01/msg00205.html (12,627 bytes)
5. Re: [Amps] Damage? (score: 1): Author: "Fortra" <fortra@siol.net>; Date: Fri, 25 Jul 2008 15:21:00 +0200; Hi Bob, you are kidding, wright?? Nermin S58DX _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps; /archives//html/Amps/2008-07/msg00242.html (7,290 bytes)
6. Re: [Amps] SGC SG-1000 InterContinental; Tech info needed! (score: 1): Author: "Fortra" <fortra@siol.net>; Date: Sun, 28 Oct 2007 23:45:25 +0100; Hi Robert, manuals could be bought from www.w7fg.com and www.sarrio.com . Manuals costs 22 or 25 us$ respectively. Good luck with amp! _______________________________________________ Amps mailing lis; /archives//html/Amps/2007-10/msg00248.html (9,558 bytes)
7. Re: [Amps] Shipping Alpha 91b from US to Eu (score: 1): Author: "Fortra" <fortra@siol.net>; Date: Sun, 2 Sep 2007 18:27:58 +0200; Hi guys, thanks to all, for hints and usefull info's. Will try to work out most of them. So far, it does look alike, that making a visit to US is best option. Well, Dayton is only 8 1/2 half months a; /archives//html/Amps/2007-09/msg00014.html (11,609 bytes)
8. Re: [Amps] Shipping Alpha 91b from US to Eu (score: 1): Author: "Fortra" <fortra@siol.net>; Date: Sun, 2 Sep 2007 14:46:43 +0200; Hi Guys, would you kindly help me with combined experience on both sides of the pond, to get my Alpha 91b from US to Slovenia. Here is my case: == Have bought Alpha amp ALPHA 91B on e-bay. The amp is; /archives//html/Amps/2007-09/msg00006.html (7,598 bytes)
9. Re: [Amps] Need help locating an article (score: 1): Author: "Fortra" <fortra@siol.net>; Date: Fri, 6 Jul 2007 10:01:49 +0200; Hi John, this is the article in July/August 1999 QEX, "A regulated 2400-V power supply" pages 50-55. by A.R.(Al) Williams, VE6AXW. I do not have it in electronic form but as magazine issue. If you le; /archives//html/Amps/2007-07/msg00043.html (9,211 bytes)
10. Re: [Amps] Help ID tube (link to pix) (score: 1): Author: "Fortra" <fortra@siol.net>; Date: Sun, 20 Nov 2005 22:27:48 +0100; Conrad, it could be GS1B, GS31B, or GS35B. Any of those are in playfield! _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/lis; /archives//html/Amps/2005-11/msg00388.html (10,119 bytes)
11. Re: [Amps] Ameritron AL-1500 Problem (score: 1): Author: "Fortra" <fortra@siol.net>; Date: Wed, 5 Oct 2005 22:40:17 +0200; Hi Rich, you might be right Richard! But since that time we still have the replaced tube. The visible difference between those two tubes was that the bad one has silver plated anode collar and the wo; /archives//html/Amps/2005-10/msg00146.html (15,308 bytes)
12. Re: [Amps] Ameritron AL-1500 Problem (score: 1): Author: "Fortra" <fortra@siol.net>; Date: Wed, 5 Oct 2005 18:01:31 +0200; Hi Jose, the problem you have described remind me about similar case waaay back in 80's. Our Alpha 77dx did the same thing on several occasions. It was find later after removal from the socket and re; /archives//html/Amps/2005-10/msg00134.html (12,253 bytes)
13. Re: [Amps] L-4B Switch (score: 1): Author: "Fortra" <fortra@siol.net>; Date: Mon, 5 Sep 2005 20:20:23 +0200; Hi Marv, judging from the physical look-alike&electrical functions, could it be, that power switch/ HV-LV voltage) switch on Kenwood TL-922 could replace the Drake power switch?? At the end of the da; /archives//html/Amps/2005-09/msg00061.html (8,448 bytes)
14. Re: [Amps] ARD-230A (score: 1): Author: "Fortra" <fortra@siol.net>; Date: Fri, 12 Aug 2005 23:19:11 +0200; Hi Richard, thanks for the info's.Just got the mail from the guy, who said that he has also analog remote control box, which replace the digital one! Guess, would have to travel serious miles in orde; /archives//html/Amps/2005-08/msg00449.html (10,530 bytes)
15. Re: [Amps] ARD-230A (score: 1): Author: "Fortra" <fortra@siol.net>; Date: Fri, 12 Aug 2005 13:48:37 +0200; Hi Amperes, I am in process to make a difficult decision, whether to buy an Advanced Radio Devices Amplifier ARD-230A. The amp is in apparently good conditions, with quality parts, and operational. D; /archives//html/Amps/2005-08/msg00423.html (7,600 bytes)
16. Re: [Amps] TV sweep tubes and 6146s (score: 1): Author: "Fortra" <fortra@siol.net>; Date: Wed, 10 Aug 2005 18:52:19 +0200; Hi Karl-Arne, could you quote some more brands of microwaves ovens, having mentioned transformers and it would be helpful year of manufacturing. Here we go, buying your old microwave ovens for peanut; /archives//html/Amps/2005-08/msg00384.html (11,044 bytes)
17. Re: [Amps] Wrong Business (score: 1): Author: "Fortra" <fortra@siol.net>; Date: Fri, 5 Aug 2005 13:20:24 +0200; Yeah David, that being said, I do understand now why the stock market get wild on gold prices! Thus, audiophiles be aware! Jesus.... Regards, Nermin S58DX-with ordinary copper cables( sigh...lack of; /archives//html/Amps/2005-08/msg00168.html (8,025 bytes)
18. Re: [Amps] Aplha 91b (score: 1): Author: "Fortra" <fortra@siol.net>; Date: Mon, 10 Jan 2005 10:46:33 +0100; Hi Rich, the Alpha 91b being produced in Bulgaria used GU74B or 4cx800. What are the contents and materials used in Russian tubes, i do not know! Regards, Nermin S58DX -- Original Message -- From: "R; /archives//html/Amps/2005-01/msg00172.html (9,286 bytes)
19. Re: [Amps] Unknown tube amp (score: 1): Author: "Fortra" <fortra@siol.net>; Date: Sun, 12 Dec 2004 23:14:48 +0100; Hi Chris, could it be VT4C the tubes used in BC-610F transmitters??! There were 4 of them, could not remember the exact function of the other two?? Nermin S58DX -- Original Message -- From: "Verner T; /archives//html/Amps/2004-12/msg00199.html (11,724 bytes)
20. Re: [Amps] 5 kw amps -- why? (score: 1): Author: "Fortra" <fortra@siol.net>; Date: Tue, 19 Oct 2004 20:44:06 +0200; Darn Scott, you have made my day!! Regards, Nermin S58DX -- Original Message -- From: "Scott Manthe" <n9aa@arrl.net> To: "Rob Atkinson, K5UJ" <k5uj@hotmail.com>; <amps@contesting.com> Sent: Tuesday,; /archives//html/Amps/2004-10/msg00270.html (10,483 bytes)

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