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Total 28 documents matching your query.

1. [AMPS] AL-82 (score: 1): Author: michon@eatel.net (Mike Michon); Date: Sat, 16 Jan 1999 18:26:18 -0800; I have an AL-82 amp that was doing OK till yesterday. I turned it off and on quickly yesterday morning. It was 4 am and I was half asleep, so I don't know why I did it. A line fuse blew. I replaced i; /archives//html/Amps/1999-01/msg00215.html (8,024 bytes)
2. [AMPS] AL-82 (score: 1): Author: km1h@juno.com (km1h@juno.com); Date: Sat, 16 Jan 1999 20:05:41 -0500; On Sat, 16 Jan 1999 18:26:18 -0800 "Mike Michon" <michon@eatel.net> writes: For starters: Replace the diode on the PS board that is not designated on the schematic. It is a 1N4001 between the B- rail; /archives//html/Amps/1999-01/msg00216.html (9,753 bytes)
3. [AMPS] AL-82 (score: 1): Author: michon@eatel.net (Mike Michon); Date: Sat, 16 Jan 1999 22:44:19 -0800; Replaced the diode on circuit board, it was on schematic, and was bad. Replaced with a IN4141 because that was all I had. No difference in the wild red glowing of plates. Checked zener diodes in cent; /archives//html/Amps/1999-01/msg00217.html (11,866 bytes)
4. [AMPS] AL-82 (score: 1): Author: wb8jkr@juno.com (Mark S Graalman); Date: Sun, 17 Jan 1999 06:45:46 EST; Sounds like a filament to grid short to me. Mark WB8JKR On Sat, 16 Jan 1999 22:44:19 -0800 "Mike Michon" <michon@eatel.net> writes: To: <amps@contesting.com> _________________________________________; /archives//html/Amps/1999-01/msg00221.html (13,639 bytes)
5. [AMPS] AL-82 (score: 1): Author: measures@vc.net (Rich Measures); Date: Sun, 17 Jan 1999 05:16:33 -0800; ? Could be a grid/fil. short. On page 15 of the Sept., 1990 issue of *QST* Magazine, there is a photograph of the insides of a3-500Z with a grid/fil. short. // If the grid/fil. potential measures 0v; /archives//html/Amps/1999-01/msg00222.html (8,596 bytes)
6. [AMPS] AL-82 (score: 1): Author: royanjoy@ncn.net (Roy Koeppe); Date: Sun, 17 Jan 1999 08:37:52 -0600; What does your plate current read? 73, K6XK --Original Message-- From: Mike Michon <michon@eatel.net> To: km1h@juno.com <km1h@juno.com>; amps@contesting.com <amps@contesting.com> To: <amps@contesting; /archives//html/Amps/1999-01/msg00224.html (9,153 bytes)
7. [AMPS] AL-82 (score: 1): Author: royanjoy@ncn.net (Roy Koeppe); Date: Sun, 17 Jan 1999 08:40:54 -0600; I agree with below... I have seen it many times with warped grids in 3-500Zs, before I remedied the parasitics problems. 73, K6XK --Original Message-- From: Mark S Graalman <wb8jkr@juno.com> To: mich; /archives//html/Amps/1999-01/msg00225.html (15,119 bytes)
8. [AMPS] AL-82 (score: 1): Author: michon@eatel.net (Mike Michon); Date: Sun, 17 Jan 1999 10:35:57 -0800; Checked the tubes for filament to grid short. One tube was shorted from filament to grid. Hooked tube from filament to grid to a 12 volt car battery and burned shorted parts off. The tubes put out 12; /archives//html/Amps/1999-01/msg00226.html (15,054 bytes)
9. [AMPS] AL-82 (score: 1): Author: km1h@juno.com (km1h@juno.com); Date: Sun, 17 Jan 1999 11:51:40 -0500; On Sat, 16 Jan 1999 22:44:19 -0800 "Mike Michon" <michon@eatel.net> writes: You now have no bias so the tubes will run very red. You are running idle current right at the maximum dissipation ratings; /archives//html/Amps/1999-01/msg00227.html (14,130 bytes)
10. [AMPS] AL-82 (score: 1): Author: measures@vc.net (Rich Measures); Date: Sun, 17 Jan 1999 09:44:31 -0800; The element that warps is the (helical) filament [see picture on p.15 of 9/1990 QST] The best way to detect a warped fil. is with a high pot tester. A good tube will exhibit well over 6kV of grid/fi; /archives//html/Amps/1999-01/msg00228.html (7,996 bytes)
11. [AMPS] AL-82 (score: 1): Author: km1h@juno.com (km1h@juno.com); Date: Sun, 17 Jan 1999 13:13:41 -0500; On Sun, 17 Jan 1999 10:35:57 -0800 "Mike Michon" <michon@eatel.net> writes: Now that is an interesting method! I have a few duds here that I will try that on. The tubes put out 1200 watts again. For; /archives//html/Amps/1999-01/msg00229.html (17,517 bytes)
12. [AMPS] AL-82 (score: 1): Author: Shawn Tayler" <stayler@powernet.net (Shawn Tayler); Date: Sun, 17 Jan 1999 10:20:57 -0800 (PDT); We use the same kind of proceedure here when the TH347's short grid to cathode, only a 100,000mfd cap is used, charged to about 12v or so. Just clears the short, gain drops a little sometimes. It'll; /archives//html/Amps/1999-01/msg00230.html (8,282 bytes)
13. [AMPS] AL-82 (score: 1): Author: measures@vc.net (Rich Measures); Date: Sun, 17 Jan 1999 13:32:16 -0800; Photograph of arced AL-82 bandswitch: http://www.vcnet.com/measures/bandsw3.html Rich... R. L. Measures, 805-386-3734, AG6K, www.vcnet.com/measures -- FAQ on WWW: http://www.contesting.com/ampfaq.ht; /archives//html/Amps/1999-01/msg00234.html (7,764 bytes)
14. [AMPS] AL-82 (score: 1): Author: sm6vvt@kungalv.mail.telia.com (Tomas Tanbäck); Date: Mon, 2 Nov 1998 21:19:40 +0100; I need a complete electrical drawing for the Ameritron AL-82. Maybee someone on the mailing list have possibility to send a private mail? Any common file format will do. TIA es 73 Tomas / SM6VVT sm6v; /archives//html/Amps/1998-11/msg00047.html (6,617 bytes)
15. [Amps] AL-82 (score: 1): Author: "Frank Mayer" <domino@worldlynx.net>; Date: Sat, 1 May 2004 09:11:20 -0400; Does anyone know the changes that were made to this amp at Ameritron for serial numbers prior to #1240 for increased efficiency on the upper bands after the July 1992 QST review? Frank WY3D _________; /archives//html/Amps/2004-05/msg00013.html (6,693 bytes)
16. [Amps] AL-82 (score: 1): Author: n4xp@juno.com; Date: Wed, 6 Dec 2006 20:29:42 -0500; I'd like to commicate with anyone who has an Ameritron AL-82 amp or has had one. Please respond directly to me. Thanks Tom N4XP _______________________________________________ Amps mailing list Amps@; /archives//html/Amps/2006-12/msg00039.html (5,991 bytes)
17. Re: [Amps] AL-82 (score: 1): Author: "Rob Atkinson" <ranchorobbo@gmail.com>; Date: Mon, 15 Sep 2008 12:23:35 -0500; I don't and never have owned an AL-82. But if I were in the market for an amp, that would probably be the one I'd try. For one thing, I like the plate power supply and the B+ it delivers which is I t; /archives//html/Amps/2008-09/msg00144.html (7,033 bytes)
18. Re: [Amps] AL-82 (score: 1): Author: "R. David Eagle" <kb8nnu@yahoo.com>; Date: Mon, 15 Sep 2008 18:09:31 -0700 (PDT); Thanks to those of you that responded with comments. I am truely shocked that more people out there didn't comment on the AL-82 due to the amount of reviews that were listed on Eham. AND yes I do k; /archives//html/Amps/2008-09/msg00147.html (7,227 bytes)
19. Re: [Amps] AL-82 (score: 1): Author: Kim Elmore <cw_de_n5op@sbcglobal.net>; Date: Mon, 15 Sep 2008 20:46:02 -0500; I don't own an AL-82 but I do own an AL-80A that I modified for about 3800 V idling and about 3600 V full-load Doing this reduced the drive requirements a bit and increased the output a bit less than; /archives//html/Amps/2008-09/msg00148.html (8,809 bytes)
20. Re: [Amps] AL-82 (score: 1): Author: "Carl" <km1h@jeremy.mv.com>; Date: Mon, 15 Sep 2008 21:46:59 -0400; By the time Escam has enough comments to be meaningful the 3-500Z will be out of production. If you like to wait forever before committing maybe you might consider 813's. (; Carl KM1H Thanks to those; /archives//html/Amps/2008-09/msg00149.html (7,764 bytes)

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