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1. [Amps] QRO Parts (score: 1): Author: Nuno Lopes <ct2iry@gmail.com>; Date: Tue, 24 Nov 2009 16:15:26 +0000; "Now the question i asked was where to get information regarding the plate impedance at 3.8KV. Im sure there must be a chart/graph to figure this out. Mike KC7NOA" Hi Mike You can use one of this two; /archives//html/Amps/2009-11/msg00260.html (8,198 bytes)
2. [Amps] GU-47B (score: 1): Author: Nuno Lopes <ct2iry@gmail.com>; Date: Tue, 15 Dec 2009 10:30:22 +0000; Hi All Anyone here have experience with this tube GU-47B, I´m thinking to build one with this tube,from 10-160m Thinking about running it at 4.5Kv - Ua and 3A - Ia Can you guys give me some advice he; /archives//html/Amps/2009-12/msg00335.html (6,357 bytes)
3. [Amps] GS-35b Amplifier (score: 1): Author: Nuno Lopes <ct2iry@gmail.com>; Date: Fri, 29 Nov 2013 10:08:54 +0000; Hi all, This will be my first big project like this, I'm in the beginning of start my first project with an amplifier, and have some questions. I'll start from the Anode tank first then working aroun; /archives//html/Amps/2013-11/msg00433.html (8,159 bytes)
4. Re: [Amps] 4CX5000A in grounded-grid (score: 1): Author: Nuno Lopes <ct2iry@gmail.com>; Date: Tue, 18 Mar 2014 12:29:59 +0000; Hi Peter, Here in Portugal my mains on the entrance of the house its 6.9kVA 30A, with no special request, its the normal mains in here. From 6.9kVA to 20.7kVA you´ve to make an request. -- *73 Nuno C; /archives//html/Amps/2014-03/msg00099.html (9,975 bytes)
5. [Amps] Triode Amp simulator (score: 1): Author: Nuno Lopes <ct2iry@gmail.com>; Date: Thu, 22 May 2014 20:12:23 +0100; Hi all, Does anyone in here ever see or have use this program from UR5FFC, to get the values of the input and output PI network. Image of the program - http://www.qsl.net/ur5ffc/soft/ggrid/ggridpa.pn; /archives//html/Amps/2014-05/msg00120.html (6,602 bytes)
6. Re: [Amps] D.C. on filaments of GS-35B? (score: 1): Author: Nuno Lopes <ct2iry@gmail.com>; Date: Wed, 4 Feb 2015 09:33:48 +0000; Hi, Me too. I would like to know the pros and cons of running the filaments of an GS-35 with Vdc , you can get small power supply of 15, 24 or 30Vdc at 10A, by around $30 some with 3 way out, you can; /archives//html/Amps/2015-02/msg00042.html (7,859 bytes)
7. Re: [Amps] D.C. on filaments of GS-35B? (score: 1): Author: Nuno Lopes <ct2iry@gmail.com>; Date: Wed, 4 Feb 2015 11:00:58 +0000; Morning Chris, I know Dominic is using Vdc on the filament, so other guys in France are using those power supply or PC power supply to feed filament and relays , that's the reason that I was asking.; /archives//html/Amps/2015-02/msg00045.html (9,140 bytes)
8. Re: [Amps] D.C. on filaments of GS-35B? (score: 1): Author: Nuno Lopes <ct2iry@gmail.com>; Date: Wed, 4 Feb 2015 12:28:45 +0000; Morning Jim, I'm looking at the schematic on Dominic web page < http://f1frv.free.fr/main1n_Triode_Linear_Amp.html >, to the " Fet Cathode Control & Meters " and " Different Tubes Arrangement " image; /archives//html/Amps/2015-02/msg00050.html (10,064 bytes)
9. Re: [Amps] Test versus working voltage for oil filled capacitor (score: 1): Author: Nuno Lopes <ct2iry@gmail.com>; Date: Thu, 16 Apr 2015 21:21:48 +0100; Hi Alan, If they are the same as the one on F1FRV website him and some other French guys use it, they use it with 4.3kV@2.5A trafo. -- *73 Nuno CT2IRY* _______________________________________________; /archives//html/Amps/2015-04/msg00118.html (10,265 bytes)
10. Re: [Amps] HT supply parts for GS35B in EU (score: 1): Author: Nuno Lopes <ct2iry@gmail.com>; Date: Wed, 2 Sep 2015 21:00:21 +0100; Hi Conrad, You can buy the PCB's from Dominic (F1FRV) or take the inverted design and make it yourself, check is website. He has several files and other stuff on the web, that he use on is GS-35 amps; /archives//html/Amps/2015-09/msg00001.html (8,339 bytes)
11. Re: [Amps] Regulated filament current (score: 1): Author: Nuno Lopes <ct2iry@gmail.com>; Date: Fri, 4 Sep 2015 19:39:09 +0100; Hi all, The guys in the western europe are using 13/14V @ 4Atrafo or PSU, then an soft start, to take care of the inrush current. -- *73 Nuno CT2IRY* _______________________________________________ A; /archives//html/Amps/2015-09/msg00013.html (8,262 bytes)

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