Mail Archive Search: <+from:geraldj@ames.net>

Results:

References: [ +from:geraldj@ames.net: 404 ]

Total 404 documents matching your query.

1. [TenTec] Source for Gel Cell chargers & battery conditioners (score: 1): Author: geraldj@ames.net (Dr. Gerald N. Johnson, electrical engineer); Date: Wed, 02 May 2001 10:24:28 -0500; Scotch makes some no crimp splices and taps. They don't hold up. Cost me a day's work summer before last dragging a 10,000 pound tractor out of a hay field because to modified ignition circuit was op; /archives//html/TenTec/2001-05/msg00006.html (7,310 bytes)
2. [TenTec] Parts Needed (score: 1): Author: geraldj@ames.net (Dr. Gerald N. Johnson, electrical engineer); Date: Sat, 05 May 2001 20:21:11 -0500; Its really poor parts house that won't translate to ECG/NTE part numbers. 1N3343A is NTE (bought out ECG) NTE5288A. Try Mouser, www.mouser.com. V275LA40B is NTE524V27 Try Mouser, www.mouser.com or Ho; /archives//html/TenTec/2001-05/msg00023.html (7,305 bytes)
3. [TenTec] Parts Needed (score: 1): Author: geraldj@ames.net (Dr. Gerald N. Johnson, electrical engineer); Date: Sun, 06 May 2001 16:30:54 -0500; Its been at least 25 years since Allied and Newark cared about selling. That's why Mouser and Digi-Key are growing so well. They believe in selling and support customers. 73, Jerry, K0CQ -- FAQ on WW; /archives//html/TenTec/2001-05/msg00032.html (7,208 bytes)
4. [TenTec] Pegasus DC Power Plug (score: 1): Author: geraldj@ames.net (Dr. Gerald N. Johnson, electrical engineer); Date: Mon, 07 May 2001 10:59:00 -0500; I've bought TenTec connector parts from Mouser (www.mouser.com) for a couple bucks. I've heard of Tentec owners calling Tentec and getting the plug shell and pins for free. I made a cable for my Cors; /archives//html/TenTec/2001-05/msg00038.html (7,747 bytes)
5. [TenTec] binaural CW? (score: 1): Author: geraldj@ames.net (Dr. Gerald N. Johnson, electrical engineer); Date: Sat, 31 Mar 2001 23:03:32 -0600; The idea of binaural is that the brain can prefer a certain direction, e.g. the patch that sounds as if its coming from a particular direction, and that can help in separating multiple signals. We do; /archives//html/TenTec/2001-04/msg00000.html (7,156 bytes)
6. [TenTec] Computer Interface Question (score: 1): Author: geraldj@ames.net (Dr. Gerald N. Johnson, electrical engineer); Date: Mon, 02 Apr 2001 21:57:43 -0600; You need a steel box to protect the transformers from the vertical sweep frequency magnetic fields. Or some mu-metal to enclose the transformers. High priced audio transformers for low level used to; /archives//html/TenTec/2001-04/msg00041.html (7,371 bytes)
7. [TenTec] Computer Interface Question (score: 1): Author: geraldj@ames.net (Dr. Gerald N. Johnson, electrical engineer); Date: Tue, 03 Apr 2001 11:03:56 -0600; Probably one or the other. Its the magnetic properties of the shield shunting the magnetic field in the steel that do the work you need. Its not electrostatic, so grounding is not critical. I guess I; /archives//html/TenTec/2001-04/msg00047.html (7,298 bytes)
8. [TenTec] Johnson Antenna Tuners article in Electric Radio, March 2001. (score: 1): Author: geraldj@ames.net (Dr. Gerald N. Johnson, electrical engineer); Date: Thu, 05 Apr 2001 10:04:22 -0600; The 40m double extended Zepp is about 180' feet long. I had one 326' long (#10 copperweld) up for 80 meters until I ran out of supports. I used it from VLF through 144 MHz with different tuners. My f; /archives//html/TenTec/2001-04/msg00082.html (8,625 bytes)
9. [TenTec] Johnson Antenna Tuners article in Electric Radio,March2001. (score: 1): Author: geraldj@ames.net (Dr. Gerald N. Johnson, electrical engineer); Date: Thu, 05 Apr 2001 12:06:12 -0600; Years ago running Mininec on an Apple ][+, I worked out that if a double extended zepp was something like 82 or 85' feet long and feed with a 300 ohm line 200 feet long, it was nearly resistive on al; /archives//html/TenTec/2001-04/msg00085.html (8,307 bytes)
10. [TenTec] Johnson Antenna Tuners article in Electric Radio,March 2001. (score: 1): Author: geraldj@ames.net (Dr. Gerald N. Johnson, electrical engineer); Date: Thu, 05 Apr 2001 12:06:27 -0600; I've used various feed lines, one of the earliest was telephone company direct burial cable that had a spiral wrapped strip of phosphor bronze for a mechanical and electrical shield. It was destroyed; /archives//html/TenTec/2001-04/msg00086.html (10,523 bytes)
11. [TenTec] OT: Sound Recording artifact with Gold line mike (score: 1): Author: geraldj@ames.net (Dr. Gerald N. Johnson, electrical engineer); Date: Thu, 05 Apr 2001 15:46:48 -0600; A transformer that isn't well shielded magnetically may add noise from power supply and monitor sweep magnetic fields. 73, Jerry, K0CQ -- FAQ on WWW: http://www.contesting.com/FAQ/tentec Submissions:; /archives//html/TenTec/2001-04/msg00094.html (7,749 bytes)
12. [TenTec] Power Supply problem (score: 1): Author: geraldj@ames.net (Dr. Gerald N. Johnson, electrical engineer); Date: Tue, 17 Apr 2001 22:17:05 -0500; You only want as much silicone thermal grease as it takes to fill the imperfections in the mating surfaces, not so much as to separate them. You want METAL to METAL contact when it can happen. Too mu; /archives//html/TenTec/2001-04/msg00192.html (8,576 bytes)
13. [TenTec] Corsair I filters (score: 1): Author: geraldj@ames.net (Dr. Gerald N. Johnson, electrical engineer); Date: Wed, 18 Apr 2001 10:18:38 -0500; The selectable filters are the current 6.3 MHz TenTec filters. The fixed first filter was originally a special 4 pole 9 MHz filter, which commonly has been replaced by an 8 pole 9 MHz SSB filter. All; /archives//html/TenTec/2001-04/msg00201.html (7,221 bytes)
14. [TenTec] Power Supply problem (score: 1): Author: geraldj@ames.net (Dr. Gerald N. Johnson, electrical engineer); Date: Thu, 19 Apr 2001 13:25:02 -0500; Plain silicone grease is not heatsink grease and is a thermal insulator. The white stuff is filled with a metal ceramic that is a good thermal conductor, the grease is just there to keep the extremel; /archives//html/TenTec/2001-04/msg00226.html (7,985 bytes)
15. [TenTec] Ten-Tec and Astron (score: 1): Author: geraldj@ames.net (Dr. Gerald N. Johnson, electrical engineer); Date: Tue, 24 Apr 2001 16:35:27 -0500; I made a special DC power cord. I used Buss 15 amp ATC type fuses for current limiting and a relay controlled by the front panel switch to turn the radio on and off. I included a diode in the circuit; /archives//html/TenTec/2001-04/msg00276.html (7,467 bytes)
16. [TenTec] Coorsair II "Quirk" (score: 1): Author: geraldj@ames.net (Dr. Gerald N. Johnson, electrical engineer); Date: Thu, 26 Apr 2001 20:13:37 -0500; If the LO was on the low side, with a 9 MHz IF the LO would be on 8.5 MHz. The LO signal to the mixer is quite a bit (20 dB) stronger than the IF signal, so its harmonic is the most troublesome. Its; /archives//html/TenTec/2001-04/msg00304.html (8,850 bytes)
17. [TenTec] (score: 1): Author: geraldj@ames.net (Dr. Gerald N. Johnson, electrical engineer); Date: Mon, 12 Mar 2001 09:16:33 -0600; Why is Tentec @ contesting.com spitting out messages it forwarded several days ago? I already saw them at least once, I don't need them again. 73, Jerry, K0CQ -- FAQ on WWW: http://www.contesting.com; /archives//html/TenTec/2001-03/msg00159.html (8,331 bytes)
18. [TenTec] More Pegasus Sensitivity (score: 1): Author: geraldj@ames.net (Dr. Gerald N. Johnson, electrical engineer); Date: Tue, 13 Mar 2001 12:01:30 -0600; Get out the 40x binocular microscope and search for that chip part that isn't soldered at both ends. Its probably near the key jack. When you find the loose part, get out your microtip soldering iron; /archives//html/TenTec/2001-03/msg00169.html (7,327 bytes)
19. [TenTec] ground (score: 1): Author: geraldj@ames.net (Dr. Gerald N. Johnson, electrical engineer); Date: Fri, 23 Mar 2001 23:07:29 -0600; I KNOW that ground connection is what the NEC requires. I don't agree with it. I believe that the RF ground and the AC ground should only be connected when RF burns require it, otherwise the tower gr; /archives//html/TenTec/2001-03/msg00264.html (9,023 bytes)
20. [TenTec] Re: Triton IV audio (score: 1): Author: geraldj@ames.net (Dr. Gerald N. Johnson, electrical engineer); Date: Thu, 01 Feb 2001 23:08:11 -0600; I suspect the faulty Triton IV has a faulty ground on the audio control. Could be inside the control or in the wiring. Might be a connector if there's a connector for the audio control cable to a PC; /archives//html/TenTec/2001-02/msg00008.html (7,350 bytes)

Current List: 1 - 20
Page: [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] [16] [17] [18] [19] [20]