- 1. [Amps] AL-80 (early) Loading control at full C (score: 1)
- Author: "Tony Brock-Fisher" <barockteer@aol.com>
- Date: Wed, 5 Sep 2007 10:09:43 -0400
- I'm the recent proud owner of an early (SN 151) AL-80. After reworking the power supply, I finally have it running (sort of). Latest 'issue' is the Loading control seems to be at or near full C (max
- /archives//html/Amps/2007-09/msg00039.html (6,915 bytes)
- 2. [Amps] Cathode resistor in GG amps (score: 1)
- Author: "Tony Brock-Fisher" <barockteer@aol.com>
- Date: Tue, 25 Sep 2007 11:29:10 -0400
- Maybe I can get the ranting/flaming to stop with a distraction: I've gotten my early AL80 one-lunger to work pretty well, and added many protection mods (no, no nichrome involved). One thing I notice
- /archives//html/Amps/2007-09/msg00273.html (7,140 bytes)
- 3. Re: [Amps] Switching off Drake L-4B occasionally trips mains RCD (score: 1)
- Author: "Tony Brock-Fisher" <barockteer@aol.com>
- Date: Wed, 3 Oct 2007 18:00:43 -0400
- Using the US terms, a GFI or GFCI senses the current in the hot and neutral leads to a device, and trips when they are not equal. The idea is any current that traveled to a device on the hot lead and
- /archives//html/Amps/2007-10/msg00029.html (10,488 bytes)
- 4. Re: [Amps] Ameritron AL-1200 (score: 1)
- Author: "Tony Brock-Fisher" <barockteer@aol.com>
- Date: Tue, 30 Oct 2007 18:34:36 -0400
- I have an AL-1200. The manual CLEARLY states not to rewire the amp so that the high voltage is above 3600 volts. I was tempted to do this, as with my line voltage and configuration, my amp runs about
- /archives//html/Amps/2007-10/msg00277.html (10,427 bytes)
- 5. [Amps] AL-1200 - MO Power?? (score: 1)
- Author: "Tony Brock-Fisher" <barockteer@aol.com>
- Date: Tue, 20 May 2008 16:00:21 -0400
- I have had an AL-1200 for over a sunspot cycle. It has run well, but never quite made the 'full boat' in terms of output. 1300 watts usually is what I get. HV runs a tad low, around 3450 volts no loa
- /archives//html/Amps/2008-05/msg00132.html (8,040 bytes)
- 6. [Amps] Efficiency changes with band (score: 1)
- Author: "Tony Brock-Fisher" <barockteer@aol.com>
- Date: Fri, 26 Dec 2008 08:25:35 -0500
- I have an AL-1200, which puts out varying amounts of RF, with varying efficiencies across the bands. I have also noticed this on mu LK-500ZB. Here's what the AL-1200 does: Drive is probably 105 watts
- /archives//html/Amps/2008-12/msg00338.html (8,054 bytes)
- 7. Re: [Amps] Efficiency changes with band (score: 1)
- Author: "Tony Brock-Fisher" <barockteer@aol.com>
- Date: Sun, 4 Jan 2009 10:16:44 -0500
- Noticed that input SWR on the AL-1200 was pretty high on 80 and 20, so I decided to do a realignment of the input circuits. After alignment, got lots more smoke out on 20 - 1600 watts now with 105W d
- /archives//html/Amps/2009-01/msg00028.html (6,992 bytes)
- 8. Re: [Amps] 3CX1500D7 quote (score: 1)
- Author: "Tony Brock-Fisher" <barockteer@aol.com>
- Date: Wed, 7 Jan 2009 22:06:42 -0500
- OK, so how about 3CX1200A7 at $1139? ('Special Price' at RF Parts) ...or, a GS-35B at $129 ('Buy It Now') !! (No wonder the AL-1200's are getting retubed Russian style!) -Tony, K1KP _________________
- /archives//html/Amps/2009-01/msg00048.html (7,386 bytes)
- 9. Re: [Amps] Slow Keying Issue (score: 1)
- Author: barockteer@aol.com
- Date: Mon, 26 Jan 2009 16:33:06 -0500
- see my writeup at: http://www.yccc.org/Articles/AL1200relay.html Also, if you can get an electronic version of PTT out of the exciter, such as the 'SEND' line of an Icom rig, that will help too. -Ton
- /archives//html/Amps/2009-01/msg00310.html (6,957 bytes)
- 10. Re: [Amps] 8877 chimney (score: 1)
- Author: "Tony Brock-Fisher" <barockteer@aol.com>
- Date: Thu, 19 Mar 2009 12:28:47 -0400
- -A tight fit means no air goes up the outside of the fin assembly, whereas a thin layer of air flow will take advantage of the surface area of the outside of the fins. -A thin flow layer up the outsi
- /archives//html/Amps/2009-03/msg00486.html (6,772 bytes)
- 11. Re: [Amps] AMERITRON AL-80B TUBE ARC / SPLATTER (score: 1)
- Author: "Tony Brock-Fisher" <barockteer@aol.com>
- Date: Mon, 22 Jun 2009 17:07:33 -0400
- If the arc is really *inside* the tube, I'd toss it in the trash to start with. You can test the HV while waiting for the new tube to arrive... -Tony, K1KP ___________________________________________
- /archives//html/Amps/2009-06/msg00094.html (7,201 bytes)
- 12. Re: [Amps] AL1200/RTTY (score: 1)
- Author: "Tony Brock-Fisher" <barockteer@aol.com>
- Date: Thu, 2 Jul 2009 16:37:44 -0400
- Carl Which is it? What you said today: http://lists.contesting.com/archives//html/Amps/2009-07/msg00046.html Or what you said 05/20/08: http://lists.contesting.com/archives//html/Amps/2008-05/msg0013
- /archives//html/Amps/2009-07/msg00063.html (8,059 bytes)
- 13. [Amps] AL-1200 MO' Powah (score: 1)
- Author: "Tony Brock-Fisher" <barockteer@aol.com>
- Date: Thu, 2 Jul 2009 16:58:03 -0400
- Incidentally, if you look up the old thread, you'll see that my original question was how to get closer to legal limit out of my AL-1200 with 100W drive. I think the problem was that my Peter Dahl tr
- /archives//html/Amps/2009-07/msg00064.html (7,654 bytes)
- 14. Re: [Amps] Amplifier scenario question (score: 1)
- Author: "Tony Brock-Fisher" <barockteer@aol.com>
- Date: Thu, 17 Sep 2009 12:46:31 -0400
- With regards to the original question, wouldn't there also be a sudden and dangerous increase in grid current & dissipation? With no HV on the plate, the grid would become the anode of a diode... -To
- /archives//html/Amps/2009-09/msg00234.html (7,323 bytes)
- 15. Re: [Amps] Drake L4 Slow Relay (score: 1)
- Author: "Tony Brock-Fisher" <barockteer@aol.com>
- Date: Sat, 21 Nov 2009 14:41:28 -0500
- Quite often the cause of the 'missing first dit' is that the exciter is making RF before the amp has switched over to transmit. The exciter sees a high SWR, and on rigs such as the 765, folds back th
- /archives//html/Amps/2009-11/msg00218.html (8,051 bytes)
- 16. Re: [Amps] SB-220: 1,800 Watts Output (score: 1)
- Author: "Tony Brock-Fisher" <barockteer@aol.com>
- Date: Sun, 29 Nov 2009 15:07:11 -0500
- That's as good as the KWS-1 listed that will do 1500W out, "because that's what's on the serial number plate"... -Tony, K1KP _______________________________________________ Amps mailing list Amps@con
- /archives//html/Amps/2009-11/msg00286.html (6,532 bytes)
- 17. Re: [Amps] SB-220: 1,800 Watts Output (score: 1)
- Author: "Tony Brock-Fisher" <barockteer@aol.com>
- Date: Mon, 30 Nov 2009 11:04:07 -0500
- They were all two-holers... _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
- /archives//html/Amps/2009-11/msg00302.html (10,975 bytes)
- 18. Re: [Amps] First Power in 25 years question (score: 1)
- Author: "Tony Brock-Fisher" <barockteer@aol.com>
- Date: Thu, 8 Apr 2010 11:59:34 -0400
- Non-6100 specific advice: The big concern is primarily the electrolytic caps. Depending on the power supply design, you could first pull out the rectifier tubes (assuming its not solid state) and pow
- /archives//html/Amps/2010-04/msg00269.html (7,442 bytes)
- 19. Re: [Amps] 1 db compression point procedure ? (score: 1)
- Author: "Tony Brock-Fisher" <barockteer@aol.com>
- Date: Wed, 30 Jun 2010 12:46:46 -0400
- I don't think you want to be anywhere close to the 1-db compression point, as the 3rd and 5th order crapola will come way up before that... Tony K1KP _______________________________________________ A
- /archives//html/Amps/2010-06/msg00224.html (6,849 bytes)
- 20. Re: [Amps] AL-1200, Now what for owners (score: 1)
- Author: "Tony Brock-Fisher" <barockteer@aol.com>
- Date: Wed, 22 Sep 2010 12:27:47 -0400
- You can buy the parts from Ameritron to convert that AL-1200 to an AL-82 for around $800. Pricey, but cheaper than a new 1200A7... That's the way I'd go, if my AL-1200 ever goes tubeless... -Tony, K1
- /archives//html/Amps/2010-09/msg00261.html (6,449 bytes)
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