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1. [AMPS] rice burners/3rd order imd (score: 1): Author: G3CWI@aol.com (G3CWI@aol.com); Date: Fri, 7 May 1999 13:06:18 EDT; I had always thought that IMD was a technique used by major contest stations to keep a clear space around their frequency... -- FAQ on WWW: http://www.contesting.com/ampfaq.html Submissions: amps@con; /archives//html/Amps/1999-05/msg00107.html (7,104 bytes)
2. [AMPS] Alpha/Power and Henry Radio (score: 1): Author: G3CWI@aol.com (G3CWI@aol.com); Date: Mon, 12 Apr 1999 14:45:14 EDT; So Alpha demonstrate at full power do they? In the 1970's Racal developed what was probably one of the first 1 KW output fully auto-tuned HF solid state PAs. They also used to demonstrate them runnin; /archives//html/Amps/1999-04/msg00262.html (7,459 bytes)
3. [AMPS] Full break-in... (score: 1): Author: G3CWI@aol.com (G3CWI@aol.com); Date: Fri, 16 Apr 1999 15:07:53 EDT; What sort of full break-in circuit is the best? Has anyone tried PIN diode switches at the multi KW level of are vacuum relays the only ways to go? 73 Richard G3CWI -- FAQ on WWW: http://www.contesti; /archives//html/Amps/1999-04/msg00309.html (7,233 bytes)
4. Re: [AMPS] feeding_two_PA´s (score: 1): Author: G3CWI@aol.com (G3CWI@aol.com); Date: Fri, 23 Apr 1999 17:22:57 EDT; I would be inclined to use a simple splitter at the input to both amps and take a small (3dB) hit on the TL922 output and an even smaller hit on the 91B output (1dB). In practice you may find that th; /archives//html/Amps/1999-04/msg00383.html (7,112 bytes)
5. [AMPS] 4 off 4CX250BM Designs (score: 1): Author: G3CWI@aol.com (G3CWI@aol.com); Date: Wed, 24 Mar 1999 12:07:38 EST; I pick up 4 new 4CX250BM valves at a hamfest recently. Does anyone know a source of a design using 4 valves for the HF bands? Presumably they can simply be operated in parallel but will I need indepe; /archives//html/Amps/1999-03/msg00596.html (7,056 bytes)
6. [AMPS] 2m plus HF (score: 1): Author: G3CWI@aol.com (G3CWI@aol.com); Date: Fri, 26 Mar 1999 03:15:23 EST; I once heard of an idea that you could use a 2m 2 times 4c250b amp on the HF bands by making the plate HT choke into a pi network. Has anyone ever tried it? Could it be done without upsetting the 2m; /archives//html/Amps/1999-03/msg00621.html (6,551 bytes)

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