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1. [Amps] VARO H407 information request (score: 1): Author: "James Nowotarski" <n3goo@arrl.net>; Date: Sat, 22 Jan 2005 19:48:48 -0500; I've just finished rebuilding an SB-200 that suffered an unfortunate high voltage event in the past and the previous owner had installed two VARO H407 rectifier blocks in the HVPS. I've recovered the; /archives//html/Amps/2005-01/msg00469.html (6,441 bytes)
2. [Amps] Re: 10dB and propagation (score: 1): Author: "Jim Nowotarski" <N3GOO@ARRL.NET>; Date: Mon, 7 Feb 2005 22:53:14 -0500; How about: 1) the bypass path in the amp had 3dB of loss? 2) the tank circuit in the amp could match the antenna better than the barefoot rig, so that the exciter put out 3 dB less when it was drivin; /archives//html/Amps/2005-02/msg00286.html (6,359 bytes)
3. Re: [Amps] Project Boxes (score: 1): Author: "James Nowotarski" <n3goo@arrl.net>; Date: Mon, 12 Sep 2005 20:00:50 -0400; Check out Techmar Enclosures, in California. http://www.techmar-enclosures.com/ I've used them for years for custom chassis' in test equipment for my real job. - Jim N3GOO ___________________________; /archives//html/Amps/2005-09/msg00106.html (6,220 bytes)
4. [Amps] sealed air cooled dummy load in oil?? (score: 1): Author: "Jim Nowotarski" <N3GOO@ARRL.NET>; Date: Tue, 4 Apr 2006 21:08:41 -0400; into a its power Generally yes, depending of course on your definition of "significant." I would suggest monitoring the temperature of the load. The oil will help transfer the heat from the load, bu; /archives//html/Amps/2006-04/msg00071.html (7,738 bytes)
5. Re: [Amps] Testing amp with no air flow (score: 1): Author: "Jim Nowotarski" <N3GOO@ARRL.NET>; Date: Fri, 20 Oct 2006 19:41:51 -0400; For what it's worth, when I brought up my homebrew 4CX800A amp, I bought 4 temperature crayons (Tempilstiks) from McMaster-Carr and marked the tube on the ceramic and metal at the seals. I don't reme; /archives//html/Amps/2006-10/msg00217.html (8,209 bytes)
6. [Amps] TL-922 parts question (score: 1): Author: "Jim Nowotarski" <N3GOO@ARRL.NET>; Date: Sun, 5 Nov 2006 15:07:49 -0500; I've got a club owned TL-922 that has a badly burnt plate variable cap. It appears that the Kenwood part is discontinued. Has anyone got a source for an equivalent unit that I can put in with the min; /archives//html/Amps/2006-11/msg00074.html (7,093 bytes)
7. Re: [Amps] TL-922 parts question (score: 1): Author: "Jim Nowotarski" <N3GOO@ARRL.NET>; Date: Sun, 5 Nov 2006 17:36:01 -0500; It measures 2.75 inches square by 4.75 inches deep. According to Kenwood it is 150pF, 4KV. Thanks, Jim Physical _______________________________________________ Amps mailing list Amps@contesting.com h; /archives//html/Amps/2006-11/msg00079.html (7,322 bytes)
8. [Amps] TL-922 parts question - Thanks! (score: 1): Author: "Jim Nowotarski" <N3GOO@ARRL.NET>; Date: Mon, 6 Nov 2006 18:52:45 -0500; Thank you to all who responded to my request for info. Now it's up to the club to decide if they want to buy an exact replacement or approach it some other way. Thanks again! 73 Jim Nowotarski ______; /archives//html/Amps/2006-11/msg00096.html (6,333 bytes)
9. [Amps] Peter W Dahl Co (score: 1): Author: "Jim Nowotarski" <N3GOO@ARRL.NET>; Date: Fri, 7 Dec 2007 13:29:28 -0500; Just called them and they confirmed that they are closing on December 31. Apparently Mr. Dahl's health is not too good. Jim Nowotarski _______________________________________________ Amps mailing lis; /archives//html/Amps/2007-12/msg00033.html (7,083 bytes)

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