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61. Re: [TenTec] man-made interference (score: 1): Author: Bill Fuqua <wlfuqu00@uky.edu>; Date: Mon, 01 Dec 2003 08:58:10 -0500; Sounds like the power supply needs a simple high voltage transformer for it's power supply. May not be as compact but should work. How complicated are those things? Bill At 09:26 PM 11/30/2003 -0700,; /archives//html/TenTec/2003-12/msg00007.html (9,066 bytes)
62. Re: [TenTec] Re Orion on Elecraft's Receiver Summary Page (score: 1): Author: Bill Fuqua <wlfuqu00@uky.edu>; Date: Wed, 03 Dec 2003 14:22:52 -0500; One problem with most of today's HF transceivers is that they can't be run off portable battery supplies for more than an hour or so. This does not make much since to some of us that see small, compa; /archives//html/TenTec/2003-12/msg00097.html (12,875 bytes)
63. Re: [TenTec] Pegasus (score: 1): Author: Bill Fuqua <wlfuqu00@uky.edu>; Date: Thu, 04 Dec 2003 09:13:40 -0500; I have found it annoying when someone insist on publishing his title or insist that you address him using his title in which case I usually call the person "Dr. Bob" or something like that. I know lo; /archives//html/TenTec/2003-12/msg00129.html (13,190 bytes)
64. Re: [TenTec] Solid State Amps (score: 1): Author: Bill Fuqua <wlfuqu00@uky.edu>; Date: Mon, 08 Dec 2003 10:29:06 -0500; At 09:59 AM 12/8/2003 -0500, J. D. Beischel wrote: Ken, I am not sure you are reading the rules correctly. A manufactured amp that is not type accepted may not be commercially sold. However, it is no; /archives//html/TenTec/2003-12/msg00266.html (10,664 bytes)
65. Re: [TenTec] Solid State Amps (score: 1): Author: Bill Fuqua <wlfuqu00@uky.edu>; Date: Mon, 08 Dec 2003 11:19:49 -0500; (4) The amplifier is sold by an amateur operator to another amateur operator or to a dealer. (5) The amplifier is purchased in used condition by an equipment dealer from an amateur operator and the a; /archives//html/TenTec/2003-12/msg00272.html (9,415 bytes)
66. Re: [TenTec] Solid State Amps (score: 1): Author: Bill Fuqua <wlfuqu00@uky.edu>; Date: Mon, 08 Dec 2003 12:03:15 -0500; Wow, I did not expect so many emails between the first and the second. But there are a lot of amplifiers that hams buy and modify for ham use that are used in MRI, plasma generators, Sputtering syste; /archives//html/TenTec/2003-12/msg00276.html (11,205 bytes)
67. Re: [TenTec] Solid state amps (score: 1): Author: Bill Fuqua <wlfuqu00@uky.edu>; Date: Mon, 08 Dec 2003 12:46:54 -0500; Interesting item. By coincidence I am working on a power tube tester today. I built one some time ago to check 4CX250B tubes because we go thru a lot of them here. I built a pulse tester that basical; /archives//html/TenTec/2003-12/msg00280.html (9,011 bytes)
68. Re: [TenTec] Solid State Amps (score: 1): Author: Bill Fuqua <wlfuqu00@uky.edu>; Date: Tue, 09 Dec 2003 08:32:49 -0500; You can't build more than 1 of a type per year if it is for HF or 6 meters. You could build single band amplifiers of the same design except for different bands as an example. Or you could build mult; /archives//html/TenTec/2003-12/msg00310.html (10,907 bytes)
69. Re: [TenTec] Link to Tokyo Hi-Power Amps (score: 1): Author: Bill Fuqua <wlfuqu00@uky.edu>; Date: Tue, 09 Dec 2003 08:46:23 -0500; There is a big difference between the amplifiers at the below link and most broadband amplifiers sold here in the US. Notice the band switch. These have band switched filters to reduce harmonic outpu; /archives//html/TenTec/2003-12/msg00312.html (7,855 bytes)
70. Re: [TenTec] Re: Solid State Amps (score: 1): Author: Bill Fuqua <wlfuqu00@uky.edu>; Date: Tue, 09 Dec 2003 11:05:38 -0500; At 06:49 PM 12/8/2003 -0500, Ron Notarius WN3VAW wrote: I would also respectively disagree with the notion that an amplifier that gives you 500 W out for 4 W input on 10 meters is automatically assum; /archives//html/TenTec/2003-12/msg00319.html (8,500 bytes)
71. Re: [TenTec] Solid state amps (score: 1): Author: Bill Fuqua <wlfuqu00@uky.edu>; Date: Tue, 09 Dec 2003 13:38:16 -0500; Sorry it is not a burst but a 5uS pulse at about 100 PPS. By using long pulses like this I can use a simple diode rectifier and single capacitor filter in the Plate current detector ckt. 73 Bill wa4l; /archives//html/TenTec/2003-12/msg00328.html (10,552 bytes)
72. Re: [TenTec] Induction Field [WAS - PS grounding] (score: 1): Author: Bill Fuqua <wlfuqu00@uky.edu>; Date: Fri, 12 Dec 2003 14:59:35 -0500; MRI works by having a magnetic field gradient across the body so that the the hydrogen atoms in different location have different resonant frequencies. Then by exciting those resonances using a pulse; /archives//html/TenTec/2003-12/msg00440.html (13,285 bytes)
73. Re: [TenTec] Argonaut 505 (score: 1): Author: Bill Fuqua <wlfuqu00@uky.edu>; Date: Wed, 17 Dec 2003 14:20:39 -0500; How are you monitoring the hum when you transmit? Possibly another receiver in the hamshack? If you are using another receiver near by it may not be real. Some times RF gets into the power supply and; /archives//html/TenTec/2003-12/msg00661.html (9,086 bytes)
74. Fwd: Re: [TenTec] Argonaut 505 (score: 1): Author: Bill Fuqua <wlfuqu00@uky.edu>; Date: Wed, 17 Dec 2003 15:22:23 -0500; I may not have been clear as to what happens when the power supply rectifiers modulates the RF. The hum will only be noticed locally where the signals from the power line are strong. But other statio; /archives//html/TenTec/2003-12/msg00667.html (10,138 bytes)
75. Re: [TenTec] Argonaut 505 (score: 1): Author: Bill Fuqua <wlfuqu00@uky.edu>; Date: Wed, 17 Dec 2003 16:19:37 -0500; At 01:16 PM 12/17/2003 -0700, you wrote: Bill, Thanks for the input. I am monitoring with another receiver in the shack and with the Argonaut driving a Heathkit Cantenna. I can hear an obvious differ; /archives//html/TenTec/2003-12/msg00671.html (11,548 bytes)
76. Re: [TenTec] Argonaut 505 - The Answer (score: 1): Author: Bill Fuqua <wlfuqu00@uky.edu>; Date: Thu, 18 Dec 2003 14:39:50 -0500; Good job. I considered that but it is so unusual to have a strong enough field to produce noticable change in the permiability of a powdered core. An interesting experiment would be to rotate the rec; /archives//html/TenTec/2003-12/msg00719.html (11,604 bytes)
77. [TenTec] Re: EMI (was Argonaut 505 - The Answer) (score: 1): Author: Bill Fuqua <wlfuqu00@uky.edu>; Date: Fri, 19 Dec 2003 08:20:52 -0500; I tried to sent the following with attachment to clear up the confusion between the end bells or clam shells ( ferrous metal magnetic shields and shorted turns. But due to size it bounced. I had pict; /archives//html/TenTec/2003-12/msg00749.html (7,765 bytes)
78. Re: [TenTec] CM47 blbs (score: 1): Author: Bill Fuqua <wlfuqu00@uky.edu>; Date: Fri, 19 Dec 2003 09:52:59 -0500; Speaking of white LEDs, years ago at another company we has a purchasing agent that had the "bright" idea of buying LEDs with clear lenses and we could put color lenses over then and get whatever col; /archives//html/TenTec/2003-12/msg00754.html (9,762 bytes)

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