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1. [Amps] AL-80B Trouble (score: 1)
Author: Mike Schlamp <w5cul@sbcglobal.net>
Date: Fri, 25 Aug 2006 08:28:05 -0700 (PDT)
Hi all, I am having my first problem with my AL-80B and I need some help in isolating the trouble, along with some signal tracing data that is not covered in the manual. Below is a synopsis of what i
/archives//html/Amps/2006-08/msg00654.html (7,659 bytes)

2. Re: [Amps] AL-80B Trouble (score: 1)
Author: "W5CUL" <w5cul@sbcglobal.net>
Date: Sat, 26 Aug 2006 01:47:58 -0500
All, I appreciate everyone's comments and advice. Unlike some lists groups that I have subscribed to in the past, this group's participants are extremely knowledgeable and quick to respond in a time
/archives//html/Amps/2006-08/msg00670.html (10,087 bytes)

3. Re: [Amps] AL-80B Trouble (score: 1)
Author: "W5CUL" <w5cul@sbcglobal.net>
Date: Thu, 7 Sep 2006 19:44:56 -0500
All, Again I would like to thank everyone who gave advice and help in trouble shooting my AL-80B. I just wanted to give one last update, as there were some people who were specifically watching this
/archives//html/Amps/2006-09/msg00137.html (10,044 bytes)

4. Re: [Amps] 160 m antenna swr (score: 1)
Author: "W5CUL" <w5cul@sbcglobal.net>
Date: Fri, 23 Mar 2007 13:55:53 -0500
Hi Alex, I live in a subdivision that does not allow towers, much less elevated antennas. So I am pretty familiar with your situation. If the antenna is cut to resonance, meaning no measurable capaci
/archives//html/Amps/2007-03/msg00319.html (8,542 bytes)

5. Re: [Amps] Bee's wax to hold screws (score: 1)
Author: "W5CUL" <w5cul@sbcglobal.net>
Date: Fri, 23 Mar 2007 16:54:25 -0500
Hi All, I use a spring loaded 4 fingered "Parts Grabber". For those hard to reach areas, I place the screw head within the fingers of the parts grabber and start the screw that way. Or when extractin
/archives//html/Amps/2007-03/msg00321.html (11,755 bytes)

6. Re: [Amps] HV transformer buzzing!! Help Please (score: 1)
Author: "W5CUL" <w5cul@sbcglobal.net>
Date: Sun, 10 Jun 2007 12:19:53 -0500
Van, Transformers will vibrate when voltage is supplied, specifically the windings. This can happen if the primary and secondary windings are not wound tightly. Or if the winding as a whole does not
/archives//html/Amps/2007-06/msg00050.html (9,697 bytes)

7. Re: [Amps] AL-80A tube glow (score: 1)
Author: "W5CUL" <w5cul@sbcglobal.net>
Date: Sat, 7 Jul 2007 11:21:19 -0500
Kim, Just as a point of reference, I run an AL-80B with a Taylor 3-500Z. When running SSB, antenna ~1.2:1, driven with 50-60W, normal voice peaks stay under 50ma Ig, power out is ~700 - 800W peak. If
/archives//html/Amps/2007-07/msg00070.html (8,970 bytes)

8. Re: [Amps] Needed Info (score: 1)
Author: "W5CUL" <w5cul@sbcglobal.net>
Date: Mon, 15 Oct 2007 21:04:20 -0500
Ron, Here you go. http://w2dtc.com/3cx3000f7.htm It is definitely a nice looking HB amplifier. 73, Mike W5CUL --Original Message-- From: amps-bounces@contesting.com [mailto:amps-bounces@contesting.co
/archives//html/Amps/2007-10/msg00199.html (7,077 bytes)

9. [Amps] Magcap Transformers (score: 1)
Author: Mike Schlamp <w5cul@sbcglobal.net>
Date: Wed, 27 Feb 2008 09:42:25 -0800 (PST)
Hi All, Has anyone recently dealt directly with Magcap for HV & Filament Transformers? If so, who is a good contact at Magcap? Thank you in advance. 73, Mike W5CUL ___________________________________
/archives//html/Amps/2008-02/msg00197.html (6,288 bytes)

10. [Amps] Need help understanding an old Transformer (score: 1)
Author: "W5CUL" <w5cul@sbcglobal.net>
Date: Mon, 26 May 2008 11:18:46 -0500
Hi All, I need some help in determining the capability of an old transformer that I ran across. It is an old Thordarson CHT Series built some time in the late 30's early 40's. The model number is T-1
/archives//html/Amps/2008-05/msg00191.html (9,282 bytes)

11. Re: [Amps] Need help understanding an old Transformer (score: 1)
Author: "W5CUL" <w5cul@sbcglobal.net>
Date: Mon, 26 May 2008 11:47:36 -0500
Rick, You get bonus points for being the first to answer!! Now considering that this is a center tap transformer, 3440-0-3440, and what you indicated seems to be from lets say the 0-3440 secondary le
/archives//html/Amps/2008-05/msg00194.html (9,316 bytes)

12. [Amps] Amperex 3-1000H (score: 1)
Author: "W5CUL" <w5cul@sbcglobal.net>
Date: Thu, 19 Jun 2008 00:56:11 -0500
Has anyone heard of an Amperex 3-1000H being used in a Class B Grounded Grid Linear RF Amplifier application? The Amperex data sheet only lists it as a Class C RF Industrial Oscillator. And all Googl
/archives//html/Amps/2008-06/msg00140.html (6,701 bytes)

13. Re: [Amps] Amperex 3-1000H (score: 1)
Author: "W5CUL" <w5cul@sbcglobal.net>
Date: Thu, 19 Jun 2008 19:23:06 -0500
Thank you to all who have replied, both on and off list. Looks like I will not be using a 3-1000H as a standby. Thank you again. 73, Mike W5CUL --Original Message-- From: Bill Fuqua [mailto:wlfuqu00@
/archives//html/Amps/2008-06/msg00145.html (8,250 bytes)

14. Re: [Amps] Shaft Misalignment Solutions (score: 1)
Author: "W5CUL" <w5cul@sbcglobal.net>
Date: Thu, 22 Jan 2009 20:07:37 -0600
Bob, Try McMaster Carr, they have quite a selection of gears, pulleys...etc in all sizes and materials. www.mcmaster.com/ 73, Mike W5CUL --Original Message-- From: amps-bounces@contesting.com [mailto
/archives//html/Amps/2009-01/msg00257.html (8,694 bytes)

15. Re: [Amps] pole transfprmer (score: 1)
Author: "W5CUL" <w5cul@sbcglobal.net>
Date: Thu, 29 Jan 2009 19:43:09 -0600
I don't know, ~$600 and a little elbow grease sure beats buying a new transformer (non-pole pig) at half those ratings. Adding a secondhand variac would make it extremely versatile, and still keep th
/archives//html/Amps/2009-01/msg00363.html (7,382 bytes)

16. Re: [Amps] Eimac bulletins now on http://w1rt.us/eimac/eimacxx.pdf (score: 1)
Author: "W5CUL" <w5cul@sbcglobal.net>
Date: Mon, 22 Feb 2010 18:44:30 -0600
Dave, Copy the hyper-link into your browser, then change the "XX" in "eimacxx.pdf" to any value ranging from 01 through 12, then hit enter to go to the webpage. Your browser should then pull down the
/archives//html/Amps/2010-02/msg00669.html (10,818 bytes)

17. Re: [Amps] Metering Boards (score: 1)
Author: "W5CUL" <w5cul@sbcglobal.net>
Date: Sun, 5 Sep 2010 09:12:58 -0500
http://home.earthlink.net/~wd7s/contents.htm 73, Mike W5CUL You need to quit getting those surplus drives from GL... ;~) _______________________________________________ Amps mailing list Amps@contest
/archives//html/Amps/2010-09/msg00018.html (9,326 bytes)

18. Re: [Amps] Pulse tuning (score: 1)
Author: "W5CUL" <w5cul@sbcglobal.net>
Date: Thu, 23 Sep 2010 07:39:24 -0500
I use a piece of software called Test Tone Generator to pulse tune my amp. It is set for 200Hz for one pulse tone, and 600Hz for the other. I have the duty cycle for each tone set for 30%, which seem
/archives//html/Amps/2010-09/msg00276.html (11,758 bytes)

19. Re: [Amps] Pulse tuning (score: 1)
Author: "W5CUL" <w5cul@sbcglobal.net>
Date: Thu, 23 Sep 2010 18:21:21 -0500
Jim, If I remember correctly 1004 hz tone was used to qualify an outside cable pair, launch power versus received power. The twist of the cable (capacitance) and the 88mH loading coil at the frame bl
/archives//html/Amps/2010-09/msg00291.html (11,068 bytes)

20. Re: [Amps] use or not coaxial audio cable to transmitter's (score: 1)
Author: "W5CUL" <w5cul@sbcglobal.net>
Date: Sat, 30 Oct 2010 17:15:22 -0500
Tzikas, A Balun at the antenna end and Ferrite at the shack end should help with RF riding the coax cable into the shack. Build the balun to transform the impedance at the antenna feed point to that
/archives//html/Amps/2010-10/msg00439.html (10,061 bytes)

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