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1. [Amps] Any designs for 4CX1000A on 2m ? (score: 1): Author: "Dr. David Kirkby" <david.kirkby@onetel.net>; Date: Mon, 06 Jun 2011 21:24:58 +0100; Are there any published designed for 2m linears using the 4CX1000A tube? I tried to build an amp with a pair of them in push-pull grounded screen, but it never worked well. Now thinking about somethi; /archives//html/Amps/2011-06/msg00079.html (7,926 bytes)
2. Re: [Amps] Any designs for 4CX1000A on 2m ? (score: 1): Author: "Carl" <km1h@jeremy.mv.com>; Date: Mon, 6 Jun 2011 18:57:19 -0400; K2RTH (SK) had a pair on 2M for decades, Im not sure which configuration but Id suspect parallel with a flat plate line. Ive heard from several that it ran well over 2K out. Carl KM1H _______________; /archives//html/Amps/2011-06/msg00080.html (10,323 bytes)
3. Re: [Amps] Any designs for 4CX1000A on 2m ? (score: 1): Author: Mark K5AM <k5am@zianet.com>; Date: Mon, 06 Jun 2011 23:14:20 +0000; From QEX: www.zianet.com/k5am/2mkw.pdf 73, Mark, K5AM www.zianet.com/k5am _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/lis; /archives//html/Amps/2011-06/msg00081.html (6,882 bytes)
4. Re: [Amps] Any designs for 4CX1000A on 2m ? (score: 1): Author: "Dr. David Kirkby" <david.kirkby@onetel.net>; Date: Tue, 07 Jun 2011 01:19:24 +0100; Thanks Mark, that looks just what I was looking for. I doubt I'll have the "luxury" features, as I would like to build this ready for a contest in the 3rd September. It does not give me long to sourc; /archives//html/Amps/2011-06/msg00082.html (7,923 bytes)
5. Re: [Amps] Any designs for 4CX1000A on 2m ? (score: 1): Author: "Fuqua, Bill L" <wlfuqu00@uky.edu>; Date: Mon, 6 Jun 2011 22:10:20 -0400; About 10 or 12 years ago there was one in QEX. You may have to check the QEX data base. 73 Bill wa4lav K2RTH (SK) had a pair on 2M for decades, Im not sure which configuration but Id suspect parallel; /archives//html/Amps/2011-06/msg00085.html (11,540 bytes)
6. Re: [Amps] Any designs for 4CX1000A on 2m ? (score: 1): Author: "Fuqua, Bill L" <wlfuqu00@uky.edu>; Date: Mon, 6 Jun 2011 22:12:30 -0400; That reminds me, I have a couple of 4CX5000A 220 MHZ amplifiers in the garage. They are large and the power supplys extremely heavy. 73 Bill wa4lav About 10 or 12 years ago there was one in QEX. You; /archives//html/Amps/2011-06/msg00086.html (12,149 bytes)
7. Re: [Amps] Any designs for 4CX1000A on 2m ? (score: 1): Author: "Dr. David Kirkby" <david.kirkby@onetel.net>; Date: Tue, 07 Jun 2011 09:31:14 +0100; Thanks Bill. Mark, K5AM sent me this link. Is that the amp you mean? http://www.zianet.com/k5am/2mkw.pdf or was there another? Dave G8WRB. -- A: Because it messes up the order in which people normall; /archives//html/Amps/2011-06/msg00087.html (12,384 bytes)
8. Re: [Amps] Any designs for 4CX1000A on 2m ? (score: 1): Author: Mike Tubby <mike@tubby.org>; Date: Tue, 07 Jun 2011 23:21:28 +0100; David, The single 4CX1000A on 2m was published in the 1990 ARRL handbook and does use grounded screen - its grounded at DC and RF with the cathode at -ve screen voltage. This approach avoids having t; /archives//html/Amps/2011-06/msg00091.html (10,301 bytes)

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