- 1. Re: [Amps] Tuned Input (score: 1)
- Author: George badger <gbadger@sbcglobal.net>
- Date: Fri, 20 Jan 2006 21:08:09 -0800 (PST)
- I have been using an antenna tuner as an input circuit for my HB 8877 lineart for years. When I was at EIMAC I learned that when linear amplifier OEMs complained of low efficiency it was often caused
- /archives//html/Amps/2006-01/msg00495.html (13,406 bytes)
- 2. [Amps] y763 (score: 1)
- Author: George badger <gbadger@sbcglobal.net>
- Date: Thu, 1 Jun 2006 16:42:41 -0700 (PDT)
- Use the 4CX1500B data sheet. The y763 is a standard 4CX1500B selected for 1500 W. power output and IMD is not measured. 73 George W6TC _______________________________________________ Amps mailing lis
- /archives//html/Amps/2006-06/msg00017.html (6,265 bytes)
- 3. Re: [Amps] Tuned Input - IMD and efficiency (score: 1)
- Author: George badger <gbadger@sbcglobal.net>
- Date: Tue, 8 Aug 2006 16:20:45 -0700 (PDT)
- I use an antenna tuner between my transceiver and my linear and eliminated the input pi networks. I did this to cover the WARC bands. Because the length of the coax is not defined and the impedance f
- /archives//html/Amps/2006-08/msg00308.html (12,806 bytes)
- 4. Re: [Amps] Tuned Input - IMD and efficiency (score: 1)
- Author: George badger <gbadger@sbcglobal.net>
- Date: Wed, 9 Aug 2006 00:24:54 -0700 (PDT)
- Mike You have a good memory. Thanks for the kind words about the baluns. They are so simple and clean. They are voltage baluns. W7EL and others [later] pointed out that current baluns are better for
- /archives//html/Amps/2006-08/msg00326.html (13,713 bytes)
- 5. Re: [Amps] Svetlana (score: 1)
- Author: George badger <gbadger@sbcglobal.net>
- Date: Fri, 11 Aug 2006 20:16:32 -0700 (PDT)
- I think I have a couple of 3cx400a7. I am putting up a new tower and SteppIR right now so I don't have time to look but I will in a few days. 73 George W6TC __________________________________________
- /archives//html/Amps/2006-08/msg00431.html (8,797 bytes)
- 6. [Amps] Fwd: Re: Svetlana (score: 1)
- Author: George badger <gbadger@sbcglobal.net>
- Date: Sat, 12 Aug 2006 08:58:51 -0700 (PDT)
- Note: forwarded message attached. _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
- /archives//html/Amps/2006-08/msg00441.html (6,881 bytes)
- 7. Re: [Amps] 180 ° Phase SHifter Off Topic (score: 1)
- Author: George Badger <gbadger@sbcglobal.net>
- Date: Tue, 7 Oct 2008 22:16:25 -0700 (PDT)
- See my article HR Mar.1980 pg.23 Fig.7. If you want to switch it put a DPDT sw. at the crossover. 73 George W6TC Does anyone have any suggestions on building or schematics of a wide band 180 degre
- /archives//html/Amps/2008-10/msg00041.html (7,739 bytes)
- 8. Re: [Amps] Eimac Industrial Tube Question 3cx400a7 (score: 1)
- Author: George Badger <gbadger@sbcglobal.net>
- Date: Fri, 7 Nov 2008 17:00:26 -0800 (PST)
- Carl No physical difference. 73 George W6TC Hi All, I was wondering if there is any difference between the 8874's marketed as Industrial tubes vs. the "standard" 8874 ??? I'm new to this tube an
- /archives//html/Amps/2008-11/msg00055.html (7,478 bytes)
- 9. Re: [Amps] how to measure tank (score: 1)
- Author: George Badger <gbadger@sbcglobal.net>
- Date: Sat, 29 Nov 2008 21:02:21 -0800 (PST)
- Lynn Put a resistor from plate ground to simulate the load and look into the output with an MFJ 259. Tune for a match. Works like a charm. George W6TC I am starting to forget all I know! Component
- /archives//html/Amps/2008-11/msg00251.html (7,713 bytes)
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