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41. Re: [TenTec] Low Pass Filter (score: 1): Author: Rick Denney <rick@rickdenney.com>; Date: Mon, 19 May 2008 15:50:52 -0400; Bob Close writes... Seems to me a low-pass filter is not a band-pass filter, and isn't there for normal attenuation of close-in spurs. It seems to me there for attenuating VHF spurs above 30 MHz so t; /archives//html/TenTec/2008-05/msg00398.html (9,937 bytes)
42. Re: [TenTec] Low Pass Filter (score: 1): Author: Rick Denney <rick@rickdenney.com>; Date: Mon, 19 May 2008 18:46:24 -0400; Bob Close writes... Sure. But a low-pass filter is designed to attenuate broadband noise well outside the range of desired frequencies a station might want to use. It's designed to attenuate spurious; /archives//html/TenTec/2008-05/msg00402.html (12,060 bytes)
43. Re: [TenTec] Low Pass Filter (score: 1): Author: Rick Denney <rick@rickdenney.com>; Date: Tue, 20 May 2008 13:01:35 -0400; Dr. Gerald N. Johnson writes... Actually, folks who delve into musical acoustics use the term "overtone" and "partial" more often than "harmonic". The second harmonic, which is at the octave of the f; /archives//html/TenTec/2008-05/msg00414.html (10,440 bytes)
44. Re: [TenTec] Low Pass Filter (score: 1): Author: Rick Denney <rick@rickdenney.com>; Date: Tue, 20 May 2008 14:18:01 -0400; Bob Close writes... A trumpet is a partial trombone. To make those three valves work, you have to push the first and third valve slides in and out to correct all the errors of having only three valve; /archives//html/TenTec/2008-05/msg00422.html (10,856 bytes)
45. Re: [TenTec] Low Pass Filter (score: 1): Author: Rick Denney <rick@rickdenney.com>; Date: Wed, 21 May 2008 13:54:07 -0400; Dr. Gerald N. Johnson writes... I do that on my four-valve Bb tubas, but not on my five-valve F tubas. They don't have slide positions that are easily adjusted, and I can usually get close enough for; /archives//html/TenTec/2008-05/msg00445.html (11,609 bytes)
46. Re: [TenTec] Early Ten-Tec's appropriate for a blind person? (score: 1): Author: Rick Denney <rick@rickdenney.com>; Date: Thu, 29 May 2008 15:25:49 -0400; W1GOR writes... Might be easiest in the long run to operate a newer rig using control software in an attached computer, and use the sight-impaired tools within the Windows OS to provide the annunciat; /archives//html/TenTec/2008-05/msg00581.html (9,044 bytes)
47. Re: [TenTec] Ameritron amp issues and looking for a Centaur (score: 1): Author: Rick Denney <rick@rickdenney.com>; Date: Tue, 1 Apr 2008 06:59:00 -0400; Ed writes... Bingo! D16 was a dead short. I replaced it, and the amp now seems to work fine. Mine is older--doesn't have the transistor switching of the T/R relay; doesn't have the diode string in th; /archives//html/TenTec/2008-04/msg00001.html (10,298 bytes)
48. Re: [TenTec] Recent Discussion of Amplifiers (score: 1): Author: Rick Denney <rick@rickdenney.com>; Date: Wed, 2 Apr 2008 01:23:11 -0400; Donald L. Schliesser writes... I've built my station out of old stuff, and those who sold it to me thought they were getting just as good a deal as I did buying it. My standard of "good deal" is not; /archives//html/TenTec/2008-04/msg00015.html (7,900 bytes)
49. [TenTec] 811 Amplifier redux (score: 1): Author: Rick Denney <rick@rickdenney.com>; Date: Fri, 4 Apr 2008 14:41:00 -0400; Thanks to those of you who helped me solve my amplifier problem. In testing so far, the Ameritron 811 is now functional, though I'm still waiting on an opportunity to test it on the air. The dummy lo; /archives//html/TenTec/2008-04/msg00031.html (13,816 bytes)
50. [TenTec] Centaur 411 report (score: 1): Author: Rick Denney <rick@rickdenney.com>; Date: Mon, 14 Apr 2008 00:11:34 -0400; My new (to me) Centaur arrive on Friday, and this is a quick report from putting it in operation and comparing it to my AL-811. Executive summary: The Centaur is MUCH nicer, and even compared to a us; /archives//html/TenTec/2008-04/msg00173.html (11,561 bytes)
51. Re: [TenTec] Ten-Tec Transceiver Survey (score: 1): Author: Rick Denney <rick@rickdenney.com>; Date: Thu, 17 Apr 2008 11:28:38 -0400; Martin Ewing AA6E writes... I'm not sure there is an ideal approach--each strategy for paying for ongoing software development has strengths and weaknesses. Volunteers are excellent for identifying n; /archives//html/TenTec/2008-04/msg00309.html (13,546 bytes)
52. Re: [TenTec] Ten-Tec Transceiver Survey (score: 1): Author: Rick Denney <rick@rickdenney.com>; Date: Thu, 17 Apr 2008 11:34:57 -0400; Bill Ames writes... Sometimes the distinction between bugs and the lack of an important feature is obvious. But not always. That's where published functional requirements would provide clarity. New r; /archives//html/TenTec/2008-04/msg00310.html (10,028 bytes)
53. Re: [TenTec] Ten-Tec Survey, open source (score: 1): Author: Rick Denney <rick@rickdenney.com>; Date: Thu, 17 Apr 2008 17:39:10 -0400; ron writes... There will always be those with the skills, time, and desire to develop code for their purposes, and some of those will do it well enough that others will want their products. That does; /archives//html/TenTec/2008-04/msg00341.html (12,742 bytes)
54. Re: [TenTec] Ten-Tec Transceiver Survey (score: 1): Author: Rick Denney <rick@rickdenney.com>; Date: Thu, 17 Apr 2008 18:13:40 -0400; Martin Ewing AA6E writes... There is nothing about a properly constructed systems engineering process that prevents iteration. But also recognize that those who want a true SDR in the sense of a comp; /archives//html/TenTec/2008-04/msg00343.html (12,739 bytes)
55. Re: [TenTec] Ten Tec Transceiver Survey (score: 1): Author: Rick Denney <rick@rickdenney.com>; Date: Thu, 17 Apr 2008 22:30:17 -0400; wo8l@aol.com writes... It's worse that that for me. My basement ham shack doesn't have a loo. When I'm down there soldering stuff in the deeps of night and natures calls, I'm almost guaranteed to wak; /archives//html/TenTec/2008-04/msg00354.html (7,856 bytes)
56. Re: [TenTec] Ten Tec Transceiver Survey (score: 1): Author: Rick Denney <rick@rickdenney.com>; Date: Fri, 18 Apr 2008 13:53:57 -0400; Dr. Gerald N. Johnson writes... I'm imagining the scene. To avoid waking up my wife with a 2AM trip to the loo, which might generate a complaint that I should be in bed, I'm going to replace that wit; /archives//html/TenTec/2008-04/msg00364.html (7,913 bytes)
57. Re: [TenTec] Cheap cw rig (score: 1): Author: Rick Denney <rick@rickdenney.com>; Date: Fri, 18 Apr 2008 14:06:39 -0400; Patrick Signs writes... This is where new folks need to be drawn into the clubs, and under the watchful eyes of elmers. I certainly benefitted from that when starting on my station. To me, getting ne; /archives//html/TenTec/2008-04/msg00365.html (9,471 bytes)
58. Re: [TenTec] New generation ham's (score: 1): Author: Rick Denney <rick@rickdenney.com>; Date: Tue, 29 Apr 2008 15:50:46 -0400; Marinus Loewensteijn writes... I'm not sure I can relate your questions in this paragraph to the general statement (that I snipped) that young people generally seek the easy way. I know many old hams; /archives//html/TenTec/2008-04/msg00518.html (11,083 bytes)
59. Re: [TenTec] New generation ham's-offtopic but had to say something (score: 1): Author: Rick Denney <rick@rickdenney.com>; Date: Wed, 30 Apr 2008 23:06:45 -0400; Jim Brown K9YC writes... An extremely important point to remember is that there is no exclusivity between "contributing" and "having fun". These two characteristics should both be true. And it is imp; /archives//html/TenTec/2008-04/msg00574.html (10,721 bytes)
60. Re: [TenTec] proper caps for Omni V? (score: 1): Author: Rick Denney <rick@rickdenney.com>; Date: Tue, 4 Mar 2008 15:45:34 -0500; Dr. Gerald N. Johnson writes... I'm bringing this thread back for a related question. I see that Mouser offers kits of capacitors, but not in the low-ESR, high-temp categories. My parts bin includes; /archives//html/TenTec/2008-03/msg00063.html (8,550 bytes)

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