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Total 31 documents matching your query.

21. [AMPS] 3CX800 (score: 1): Author: measures@vc.net (Rich Measures); Date: Thu, 17 Jun 1999 02:34:35 -0700; Rich... R. L. Measures, 805-386-3734, AG6K, www.vcnet.com/measures -- FAQ on WWW: http://www.contesting.com/ampfaq.html Submissions: amps@contesting.com Administrative requests: amps-REQUEST@contest; /archives//html/Amps/1999-06/msg00492.html (8,959 bytes)
22. [AMPS] 3CX800 (score: 1): Author: Peter_Chadwick@mitel.com (Peter Chadwick); Date: Thu, 17 Jun 1999 10:35:09 +0100; Would you believe that some early commercial rigs for amateurs did just that to control output? Even more incredible is that one club over here went out on a VHF contest, and in order not to overdriv; /archives//html/Amps/1999-06/msg00493.html (8,022 bytes)
23. [AMPS] 3CX800 (score: 1): Author: amps@txrx.demon.co.uk (Steve Thompson); Date: Tue, 28 Jul 1998 07:21:04 +0100; I'm puzzled by some bits of the data. There is a lot of emphasis on the 600mA max. anode current, but under pulse conditions 1A for 200ms is allowed, 2A for 10ms and 8A max. on short pulses. If it ha; /archives//html/Amps/1998-07/msg00193.html (7,185 bytes)
24. [AMPS] 3CX800 (score: 1): Author: measures@vc.net (Rich Measures); Date: Tue, 28 Jul 98 04:52:08 -0800; ? ... to avoid overheating and stripping the barium and strontium oxide coating from the cathode during N-zero-N operation. For ssb, the current rating is 800mA. . However, this is a current which s; /archives//html/Amps/1998-07/msg00195.html (7,642 bytes)
25. [AMPS] 3CX800 (score: 1): Author: w4eto@rmii.com (Richard W. Ehrhorn); Date: Tue, 28 Jul 1998 20:59:40 -0600; Hi Steve and all... It's my understanding that an "electron cloud" forms around the cathode whenever the current drawn from it is less than its emissive capability. This negatively-charged cloud effe; /archives//html/Amps/1998-07/msg00196.html (8,929 bytes)
26. [AMPS] 3CX800 (score: 1): Author: amps@txrx.demon.co.uk (Steve Thompson); Date: Thu, 30 Jul 1998 22:30:17 +0100; Marvellous, thanks, Dick; you also answer the (unasked) follow-up question about running higher anode voltage. Steve -- FAQ on WWW: http://www.contesting.com/ampfaq.html Submissions: amps@contesting.; /archives//html/Amps/1998-07/msg00210.html (8,503 bytes)
27. [AMPS] 3cx800 (score: 1): Author: w5robert@blkbox.COM (Robert); Date: Sun, 13 Apr 1997 00:57:42 -0500 (CDT); Update on 3cx800 project (into mla2500). Tested a RS 12.6vac 3amp transformer for filament supply. Ran 14.5 vac unloaded. Ran 13.05 vac into two 3cx800's That's close enough to the 13.5 spec (for me); /archives//html/Amps/1997-04/msg00162.html (8,119 bytes)
28. [AMPS] 3cx800 (score: 1): Author: daveb@buffnet.net (daveb@buffnet.net); Date: Sun, 13 Apr 1997 09:47:49 -0400; This is a multi-part message in MIME format. --=_NextPart_000_01BC47EF.BF366460 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit You mention someone who replaces 8874s wit; /archives//html/Amps/1997-04/msg00170.html (9,455 bytes)
29. [AMPS] 3cx800 (score: 1): Author: dbr@alumni.caltech.edu (David B. Ritchie); Date: Sun, 13 Apr 1997 11:39:26 -0700 (PDT); FYI -- My friends who work for Eimac and design their tubes have repeatedly told me that they are serious about their filament voltage specs and that if you are high or low, it will reduce cathode li; /archives//html/Amps/1997-04/msg00176.html (9,705 bytes)
30. [AMPS] 3cx800 (score: 1): Author: jfitz@albany.net (Joe Fitzgerald); Date: Mon, 14 Apr 1997 20:13:14 -0400; If heater voltage is reduced durning operation of metal oxide cathode tubes, it can more harmful than running too much voltage. Low catode temperature can instantly ruin the tube! Also remember the w; /archives//html/Amps/1997-04/msg00184.html (7,945 bytes)
31. [Amps] 3cx800 (score: 1): Author: "Joe Barnes" <n4jbk@comcast.net>; Date: Thu, 31 Mar 2011 21:33:08 -0400; Does anyone know of a source for good late date code 3cx800 medical pulls? I that won't fly what is the general opinion of these pro tek tubes that I am seeing as far as gain, reliability, standing b; /archives//html/Amps/2011-03/msg00318.html (7,575 bytes)

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