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41. Re: [Amps] {SPAM} Kilovac H-18 (score: 1): Author: "Dan Hearn" <dhearn@air-pipe.com>; Date: Sat, 21 Jun 2008 09:30:36 -0700; I have had a similar problem with the vac relay in my 77DX. I cured it by reversing the coil leads. Supposedly the core in the relay becomes permanently magnetized from the DC . This happened to me o; /archives//html/Amps/2008-06/msg00154.html (7,612 bytes)
42. [Amps] Transistor Lifetime (score: 1): Author: "Dan Hearn" <dhearn@air-pipe.com>; Date: Fri, 4 Jul 2008 11:24:43 -0700; I have several NPN RF power transistors which were acquired about 10-12 years ago. They were new at the time and are still in the factory sealed packages. Some are matched pairs. Included are MRF454,; /archives//html/Amps/2008-07/msg00036.html (6,610 bytes)
43. Re: [Amps] Motorized Jennings Vacuum Cap (score: 1): Author: "Dan Hearn" <dhearn@air-pipe.com>; Date: Sat, 5 Jul 2008 07:38:47 -0700; I have one of the same units. They showed up fairly often in surplus sales in Dallas. I think they are from Collins Rockwell antenna tuners I would also like to get a schematic for it. I have two old; /archives//html/Amps/2008-07/msg00044.html (8,055 bytes)
44. Re: [Amps] HL2K question (score: 1): Author: "Dan Hearn" <dhearn@air-pipe.com>; Date: Thu, 31 Jul 2008 15:34:20 -0700; Pat: One of the projects I worked on before retirement involved an oil well logging instrument with a scintillation counter in it. It was inside a steel tubing pressure housing 2 1/8 ID. There was a; /archives//html/Amps/2008-07/msg00376.html (8,600 bytes)
45. [Amps] Need meter (score: 1): Author: "Dan Hearn" <dhearn@air-pipe.com>; Date: Fri, 8 Aug 2008 21:24:03 -0700; I am looking for a replacement panel meter for a Henry 2K2. Does anyone have one or know of a source? Henry could not help. 73, Dan, N5AR _______________________________________________ Amps mailing; /archives//html/Amps/2008-08/msg00052.html (6,251 bytes)
46. Re: [Amps] {SPAM} Vacuum relay adjustment? (score: 1): Author: "Dan Hearn" <dhearn@air-pipe.com>; Date: Wed, 10 Sep 2008 16:43:51 -0700; There is no mechanical adjustment on the relay. I think the screw you are talking about holds the coil in place. I have had a problem with a relay of that type becoming magnetized. Try reversing the; /archives//html/Amps/2008-09/msg00107.html (8,701 bytes)

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