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21. 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)

22. 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)

23. 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)

24. 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)

25. 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)

26. 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)

27. 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)

28. 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)

29. 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)

30. 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)

31. 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)

32. 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)

33. Re: [Amps] Test (score: 1)
Author: "Fortra" <fortra@siol.net>
Date: Mon, 8 Feb 2010 17:03:38 +0100
Hi , this is test! Nermin S58DX _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
/archives//html/Amps/2010-02/msg00254.html (7,094 bytes)

34. Re: [Amps] setting bias in Alpha 91b (score: 1)
Author: "Fortra" <fortra@siol.net>
Date: Fri, 19 Feb 2010 14:34:12 +0100
Hi Guys, well, all good things have some terminal failure, thus my Alpha 91b. Made in 1995, with original GU74B's which went south recently. After quite some googling and seraching in amps. archive,
/archives//html/Amps/2010-02/msg00566.html (6,935 bytes)

35. Re: [Amps] setting bias in Alpha 91b (score: 1)
Author: "Fortra" <fortra@siol.net>
Date: Mon, 22 Feb 2010 18:08:21 +0100
Hi John, thanks for info buddy. Yeah, i know where it was built as i have planned back in 90's to buy it! Well, in 2007 i bought it in US. Thomas OZ1JTE, helps me with lot of files containing EBS, BI
/archives//html/Amps/2010-02/msg00649.html (7,961 bytes)

36. Re: [Amps] 91B problem in Paraguay (score: 1)
Author: "Fortra" <fortra@siol.net>
Date: Sun, 21 Mar 2010 15:50:27 +0100
Dale, in my case one of the tubes failed. Replaced both with NOS! Turned on my hosts amp this morning and tripped the 2amp slow-blow fuse...Got more fuses this afternoon and same thing keeps happenin
/archives//html/Amps/2010-03/msg00438.html (7,750 bytes)

37. [Amps] Fw: 91B problem in Paraguay (score: 1)
Author: "Fortra" <fortra@siol.net>
Date: Sun, 21 Mar 2010 15:51:20 +0100
_______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
/archives//html/Amps/2010-03/msg00439.html (7,661 bytes)

38. Re: [Amps] Matched Pairs of Tubes (score: 1)
Author: "Fortra" <fortra@siol.net>
Date: Fri, 19 Nov 2010 17:03:21 +0100
Hi Randy, as Albert Einstein said on one occasion " two things are endlees, man stupidity and space! Though i am not sure about first one " Oh well..........everything has it's price!! Nermin S58DX _
/archives//html/Amps/2010-11/msg00361.html (10,812 bytes)

39. Re: [Amps] Our new 2000W auto tune amplifer (score: 1)
Author: "Fortra" <fortra@siol.net>
Date: Thu, 10 Nov 2011 14:34:47 +0100
Hi Hsu, well, i wonder who is producing amp for whom ! OM power for you, or you did the thing for OM power ? Rgds, Nermin S58DX p.s.like some of the details :) -- Original Message -- From: "Hsu" <hsu
/archives//html/Amps/2011-11/msg00047.html (8,861 bytes)

40. Re: [Amps] 4 x Glass Glowing tubes (score: 1)
Author: "Fortra" <fortra@siol.net>
Date: Mon, 27 Feb 2012 12:44:59 +0100
Hi Maximo, i have not heard about 4-1000A being used at AF :) But, that is a beast in apperance, definetelly . Maybe some other European types, such as Philips QB-5/1750, i know the guy who sale them
/archives//html/Amps/2012-02/msg00278.html (14,101 bytes)

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