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21. Re: [Amps] Input Network? (score: 1): Author: Tony King - W4ZT <amps080605@w4zt.com>; Date: Wed, 18 Jan 2006 08:02:32 -0500; I agree with Vic, try type 6 material for the core. The input of the GS-35B appears to be higher on 10 meters and may be on the order of 90 Ohms. These values have been used with success on a single; /archives//html/Amps/2006-01/msg00442.html (9,639 bytes)
22. Re: [Amps] MLA-2500 Power Supply Capacity (score: 1): Author: Tony King - W4ZT <amps080605@w4zt.com>; Date: Wed, 18 Jan 2006 23:20:22 -0500; Bob, Lawson Summerrow, W4EMF, did a very nice conversion of the MLA-2500 to a pair of 3CX800A7s. A few pictures can be seen here: <http://w4emf.gs35b.com/mla2500-retro-3cx800/> There's no other info; /archives//html/Amps/2006-01/msg00461.html (8,786 bytes)
23. [Amps] Tuned Input (score: 1): Author: Tony King - W4ZT <amps080605@w4zt.com>; Date: Thu, 19 Jan 2006 22:58:41 -0500; I don't know if any of you have looked into this particular product but at first glance it appears that this is one solution for the tuned input problem many of us face and at the right price too: <h; /archives//html/Amps/2006-01/msg00472.html (6,861 bytes)
24. Re: [Amps] Tuned Input (score: 1): Author: Tony King - W4ZT <amps080605@w4zt.com>; Date: Fri, 20 Jan 2006 15:20:31 -0500; These are very good points that raise questions that must be answered before I would consider using such a tuner as the input circuit. I'm with you Ian, I'd like to see the answers to the questions.; /archives//html/Amps/2006-01/msg00490.html (10,927 bytes)
25. Re: [Amps] Tuned Input (score: 1): Author: Tony King - W4ZT <amps080605@w4zt.com>; Date: Sun, 22 Jan 2006 19:00:38 -0500; yes. 73, Tony W4ZT _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps; /archives//html/Amps/2006-01/msg00512.html (6,892 bytes)
26. Re: [Amps] Building or Buying a Tuned Input Network (score: 1): Author: Tony King - W4ZT <amps080605@w4zt.com>; Date: Sun, 22 Jan 2006 22:14:41 -0500; Take a look at Paul's (WD7S) tuned input board: <http://home.earthlink.net/%7Ewd7s/TU-6B.htm> 73, Tony W4ZT _______________________________________________ Amps mailing list Amps@contesting.com http:; /archives//html/Amps/2006-01/msg00514.html (9,740 bytes)
27. Re: [Amps] Building or Buying a Tuned Input Network (score: 1): Author: Tony King - W4ZT <amps080605@w4zt.com>; Date: Mon, 23 Jan 2006 00:14:39 -0500; Bill and the group, I have not personally put one of Paul's tuned input boards on the air but my good friend Lawson, W4EMF, has first hand experience with it. His experience is that putting an Arco c; /archives//html/Amps/2006-01/msg00521.html (10,530 bytes)
28. Re: [Amps] Building or Buying a Tuned Input Network (score: 1): Author: Tony King - W4ZT <amps080605@w4zt.com>; Date: Mon, 23 Jan 2006 00:45:02 -0500; Thanks :) Assuming a good tuned input match and the plate tank adjusted with a good Q, expect **about** 75 to 80 Watts drive for 1500 out. The 13 dB gain figure is quite close so a 100 Watt transceiv; /archives//html/Amps/2006-01/msg00523.html (9,716 bytes)
29. Re: [Amps] Building or Buying a Tuned Input Network (score: 1): Author: Tony King - W4ZT <amps080605@w4zt.com>; Date: Mon, 23 Jan 2006 02:16:00 -0500; I agree totally with Bob about the dangers of running the GS-35B at voltages above 3800 Volts. Though it has been done, it is a very risky cloud to fly in and not where I would want to go. There are; /archives//html/Amps/2006-01/msg00531.html (11,154 bytes)
30. Re: [Amps] More: corded dial drive help (score: 1): Author: Tony King - W4ZT <amps080605@w4zt.com>; Date: Mon, 23 Jan 2006 08:37:36 -0500; Scott, I am not familiar with that specific drive but many of the cord and pulley drives from many years ago worked exactly as you've described with one small exception. One of the pulleys would have; /archives//html/Amps/2006-01/msg00551.html (11,171 bytes)
31. Re: [Amps] What blower? (score: 1): Author: Tony King - W4ZT <amps080605@w4zt.com>; Date: Fri, 27 Jan 2006 17:15:49 -0500; I would suggest the 2C647 because of its lower RPM (quieter) and with the slightly higher air flow, should do nicely. It costs slightly less too. I agree with Jim, Grainger is less cost. You'll have; /archives//html/Amps/2006-01/msg00629.html (7,693 bytes)
32. Re: [Amps] 3-500 / 4-400 cooling (09/10/2005) (score: 1): Author: Tony King - W4ZT <amps080605@w4zt.com>; Date: Sat, 28 Jan 2006 23:17:04 -0500; Hi Bill, The GS-35B wasn't built by Svetlana. It was built in a Union factory in Novosibirsk, Russian Siberia. It's a great tube though! 73, Tony W4ZT <http://gs35b.com> _____________________________; /archives//html/Amps/2006-01/msg00661.html (8,871 bytes)
33. Re: [Amps] Needed: Easy to Wind Low Value Meter Shunt Wire (score: 1): Author: Tony King - W4ZT <amps080605@w4zt.com>; Date: Sat, 04 Feb 2006 15:48:39 -0500; I agree with Bill. The use of your meter as a Voltmeter has several benefits. First, it is EASY to use standard resistors for the shunt. Second, it is EASY to calibrate. Third, it is inexpensive. For; /archives//html/Amps/2006-02/msg00094.html (9,417 bytes)
34. Re: [Amps] Glass envelope (score: 1): Author: Tony King - W4ZT <amps080605@w4zt.com>; Date: Wed, 08 Feb 2006 08:55:00 -0500; So the question that remains for me is: What kind of gas molecules remain? Surely they are not an easily ionized gas like helium, neon or argon. Surely not oxygen (big no no); nitrogen? I would think; /archives//html/Amps/2006-02/msg00187.html (10,670 bytes)
35. Re: [Amps] Question abt YC-156/3CPX5000A7 (score: 1): Author: Tony King - W4ZT <amps080605@w4zt.com>; Date: Thu, 23 Feb 2006 17:39:38 -0500; Dirty ceramic will certainly cause leakage. Clean it good and try it again. Then if you really want to put it in there, be sure to run the bias way up first and ease it down to make sure it idles at; /archives//html/Amps/2006-02/msg00470.html (7,923 bytes)
36. [Amps] GS-35B Tubes Glow In The Dark (score: 1): Author: Tony King - W4ZT <amps080605@w4zt.com>; Date: Fri, 24 Feb 2006 00:58:32 -0500; Friends, Recently I have worked on a friend's GS-35B two tube amp. I replaced both tubes in it. During the testing after the tube swap I noticed that by looking straight down through the anode cooler; /archives//html/Amps/2006-02/msg00485.html (7,789 bytes)
37. Re: [Amps] GS35B glowing ceramic TSPA (score: 1): Author: Tony King - W4ZT <amps080605@w4zt.com>; Date: Fri, 24 Feb 2006 12:08:01 -0500; John and All, The overwhelming majority of opinions, most received off list, agree with either the soft X-ray theory or the electron bombardment theory. Honestly, I just don't know myself and that's; /archives//html/Amps/2006-02/msg00503.html (11,709 bytes)
38. Re: [Amps] GS-35B Tubes Glow In The Dark (score: 1): Author: Tony King - W4ZT <amps080605@w4zt.com>; Date: Fri, 24 Feb 2006 14:21:26 -0500; That's an intriguing idea Hal. I can try it and see if it has any effect but it will be at least Sunday before it gets done (getting ready for the Dalton, GA hamfest now). Though there might be somet; /archives//html/Amps/2006-02/msg00513.html (9,455 bytes)
39. Re: [Amps] 3CX3000 input impedence (score: 1): Author: Tony King - W4ZT <amps080605@w4zt.com>; Date: Mon, 27 Feb 2006 12:57:00 -0500; Barrie, The first rule of amplifier building after keeping your hands in your pockets is to know what your plate load resistance is. Without it you can't know the proper values for C1, C2 and L to ma; /archives//html/Amps/2006-02/msg00621.html (8,442 bytes)
40. Re: [Amps] 3CX3000 input impedence (score: 1): Author: Tony King - W4ZT <amps080605@w4zt.com>; Date: Mon, 27 Feb 2006 14:26:32 -0500; Perhaps I should have paid better attention before my previous reply. You asked for tuned input and I responded with output.... sorry, my mistake. From the Eimac data sheet they show the Driving Impe; /archives//html/Amps/2006-02/msg00632.html (7,377 bytes)

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