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21. Re: [Amps] Parasitics (score: 1): Author: GGLL <nagato@arnet.com.ar>; Date: Mon, 25 Aug 2003 23:00:28 -0300; rlm escribió: There's a header that should wake people up! In the latest QST, the article on maintenance of linears suggests that poor neutralization can lead to parasitics. Not something I've; /archives//html/Amps/2003-08/msg00035.html (8,621 bytes)
22. Re: [BULK] - [Amps] NCL 2000? (score: 1): Author: GGLL <nagato@arnet.com.ar>; Date: Thu, 02 Oct 2003 09:37:26 -0300; Is that the only type number for them?; I've been searching and only have found tubes used as tuning indicators with that specification (4662). Best regards Guillermo - LU8EYW. Dennis12Amplify@aol.co; /archives//html/Amps/2003-10/msg00018.html (8,874 bytes)
23. Re: [BULK] - [Amps] NCL 2000? (score: 1): Author: GGLL <nagato@arnet.com.ar>; Date: Thu, 02 Oct 2003 21:26:02 -0300; Dennis12Amplify@aol.com escribió: ** If I knew for sure that they would sub for 8122's, I would test them in working units or send them to someone to be tested as 8122's and then put some of t; /archives//html/Amps/2003-10/msg00022.html (8,543 bytes)
24. Re: [Amps] TS430 and the 91b (score: 1): Author: GGLL <nagato@arnet.com.ar>; Date: Thu, 09 Oct 2003 23:14:10 -0300; Hello Robert, If I don't miss, there are two pins at filter board of ts 430, shorting them limits maximum output power to 50 Watts, at all bands. Another method is to tweak down output power trimmer; /archives//html/Amps/2003-10/msg00075.html (8,099 bytes)
25. Re: [Amps] Transistor Bias (score: 1): Author: GGLL <nagato@arnet.com.ar>; Date: Sat, 18 Oct 2003 09:39:14 -0300; Hello Gene, you may try also another circuit, you can find it at a Motorola application note (sorry, but don't remember which, perhaps in a 300 watts out linear schematic?, maybe someone else in the; /archives//html/Amps/2003-10/msg00162.html (8,568 bytes)
26. [Amps] About single 4CX250b output power (score: 1): Author: GGLL <nagato@arnet.com.ar>; Date: Sun, 26 Oct 2003 10:34:34 -0300; Hello to the list, I want to know if is it possible to obtain 350 watts output from 160 to 10 with a single 4CX250b tube, for linear amplifier service, and which working class? AB1, AB2?; 2000 Plate; /archives//html/Amps/2003-10/msg00243.html (6,789 bytes)
27. Re: [Amps] About single 4CX250b output power (score: 1): Author: GGLL <nagato@arnet.com.ar>; Date: Mon, 27 Oct 2003 21:08:46 -0300; Thanks so much for the answers; I read the RCA manual specs about this tube, but wanted to know about other's experiences (I have at hand two of them, no sockets nor chimneys). Best regards Guillermo; /archives//html/Amps/2003-10/msg00255.html (8,568 bytes)
28. Re: [Amps] Looking for help with AL-811 repair (score: 1): Author: GGLL <nagato@arnet.com.ar>; Date: Mon, 01 Dec 2003 08:58:43 -0300; Is that the four tube version?. Afriend of mine has a three 811 one AL 811 and can't obtain more than 300 watts without passing into the grid current red zone. I think those new 811 might be capable; /archives//html/Amps/2003-12/msg00008.html (9,068 bytes)
29. Re: [Amps] 3.5 kV 2A REGULATED Power Supply: Schematic ? (score: 1): Author: GGLL <nagato@arnet.com.ar>; Date: Tue, 30 Dec 2003 23:25:40 +0000; I've been following this nice discussion, and want to ask something about Ian's post, ¿what's bad with running exciter at a lower level and to have the amplifier "seriously under-driven"? (it; /archives//html/Amps/2003-12/msg00472.html (9,764 bytes)
30. Re: [Amps] IMD & ALC's (score: 1): Author: GGLL <nagato@arnet.com.ar>; Date: Sat, 03 Jan 2004 16:51:01 +0000; If one could just use it as a 50 watts exciter (sliding the internal 50 W setting switch) with/without a 50 Watts only demanding linear, could this working mode being an improve in IMD?, is still an; /archives//html/Amps/2004-01/msg00033.html (10,224 bytes)
31. Re: [Amps] HV SAFETY QUESTION (score: 1): Author: GGLL <nagato@arnet.com.ar>; Date: Fri, 23 Jan 2004 20:45:23 +0000; Bill Turner wrote: On Wed, 21 Jan 2004 17:39:34 -0800 (PST), Steven Grant, W4IIV wrote: this can be found out quite easily......measure the resistance of your body...hand to hand (wet your fingers)..; /archives//html/Amps/2004-01/msg00240.html (10,045 bytes)
32. [Amps] Matching devices (score: 1): Author: GGLL <nagato@arnet.com.ar>; Date: Wed, 04 Feb 2004 18:41:03 -0300; Hello to the list, how closer/optimum would be fine, to match a pair or more active devices, being either tubes or transistors, are there some guidelines to achieve that?. Is that test made at low le; /archives//html/Amps/2004-02/msg00034.html (6,380 bytes)
33. [Amps] Re: [HomeBrew] Need some help! (score: 1): Author: GGLL <nagato@arnet.com.ar>; Date: Mon, 16 Feb 2004 20:10:41 -0300; After reading some justified mails complaining about answering to the sender and not to the list (12V, 50W zener ID), I repeat my answer to this forum, although the question was posted at Homebrew li; /archives//html/Amps/2004-02/msg00142.html (10,817 bytes)
34. Re: [Amps] dummy load. (score: 1): Author: GGLL <nagato@arnet.com.ar>; Date: Fri, 02 Apr 2004 08:52:50 -0300; I think that depending on how many resistors (value and wattage for each?) you employ, you'll have a somewhat high stray inductance/capacitance, and this will degrade load performance. Best regards G; /archives//html/Amps/2004-04/msg00008.html (8,355 bytes)
35. Re: [Amps] E rating of PVC (score: 1): Author: GGLL <nagato@arnet.com.ar>; Date: Wed, 14 Jul 2004 10:22:29 -0300; I'm interested in this thread because I need a HV probe (upto 6 KV will be enough for me, I have seen a Fluke one, but here it's expensive), and the possibility to build one myself interest me. I kno; /archives//html/Amps/2004-07/msg00072.html (9,173 bytes)
36. Re: [Amps] 3-500ZG brands (score: 1): Author: GGLL <nagato@arnet.com.ar>; Date: Thu, 12 Aug 2004 09:40:39 -0300; Clay, the one which does not light up filament could only have its connecting wire desoldered from the pin (common failure with poorly cooled systems). It deserves to take a look if you didn't yet. I; /archives//html/Amps/2004-08/msg00109.html (8,166 bytes)
37. Re: [Amps] RE: Need Help (score: 1): Author: GGLL <nagato@arnet.com.ar>; Date: Tue, 17 Aug 2004 08:00:27 -0300; Hello Tom: Thomas Hix escribió: I guess I didn't explain my situation very well.......When the problem with the arcing/buzzing sound is coming from the amp, and the HV meter is showing split s; /archives//html/Amps/2004-08/msg00187.html (8,460 bytes)
38. [Amps] Tl 922 fan (score: 1): Author: GGLL <nagato@arnet.com.ar>; Date: Fri, 17 Sep 2004 20:19:55 -0300; Hello to the list, which should be the smallest clearance space behind TL 922 fan exhaust?. I guess if you keep it somewhat near a wall would add some resistance to air flow? TIA Best regards Guiller; /archives//html/Amps/2004-09/msg00315.html (6,445 bytes)
39. [Amps] 4-400's Differences? (score: 1): Author: GGLL <nagato@arnet.com.ar>; Date: Fri, 01 Oct 2004 20:25:15 -0300; Which is the difference between a 4-400A and a 4-400C?. I could not find a 4-400C data sheet anywhere in the web. TIA Guillermo - LU8EYW. _______________________________________________ Amps mailing; /archives//html/Amps/2004-10/msg00001.html (6,217 bytes)
40. [Amps] Tetrodes working as triodes (score: 1): Author: GGLL <nagato@arnet.com.ar>; Date: Fri, 29 Oct 2004 16:30:50 -0300; I was intrigued with the QB3-300 amplifier thread, but regarding other tubes. Despite difference in plate dissipation, what kind of performance can I expect in G.G. mode from a 4-400 tube (for an exa; /archives//html/Amps/2004-10/msg00510.html (6,751 bytes)

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