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1. [Amps] 3.5 kV 2A REGULATED Power Supply: Schematic ? (score: 1): Author: Frank Goenninger <frank_goenninger@t-online.de>; Date: Sun, 28 Dec 2003 20:55:25 +0100; Hi all on the list: I have now tried to find (for several days) a design that builds a power supply for about 3.5kV and 2A. I'm looking for a regulated power supply design where output voltage does n; /archives//html/Amps/2003-12/msg00431.html (7,237 bytes)
2. RE: [Amps] 3.5 kV 2A REGULATED Power Supply: Schematic ? (score: 1): Author: Frank Goenninger <frank_goenninger@t-online.de>; Date: Sun, 28 Dec 2003 21:55:07 +0100; Thx for quick response. Referring to your question: I think I should re-phrase my question: Considering a grounded-cathode circuit for a tetrode (like GU-84b), what is the requirement for the plate s; /archives//html/Amps/2003-12/msg00433.html (9,416 bytes)
3. Re: [Amps] 3.5 kV 2A REGULATED Power Supply: Schematic ? (score: 1): Author: frank_goenninger@t-online.de (Frank Goenninger); Date: Tue, 30 Dec 2003 14:40:13 +0100; YES, yes, yes: I have to fully agree to Chris - It was my (wrong) question about (plate) voltage stability that generated that burst of extremely good comments about power supply issues for tube amps; /archives//html/Amps/2003-12/msg00467.html (7,954 bytes)
4. Re: [Amps] ALPHA 77 RF POWER CAPACITORS (score: 1): Author: Frank Goenninger <frank_goenninger@t-online.de>; Date: Thu, 08 Jan 2004 14:58:00 +0100; Replace each "strange" char with a "0". Then you get "500 pF". But I'm sure you knew already ;-) Another one of that character encoding sh.. ! 73, Frank ______________________________________________; /archives//html/Amps/2004-01/msg00090.html (10,177 bytes)
5. Re: [Amps] O/SYS GLITCH (score: 1): Author: Frank Goenninger <frank_goenninger@t-online.de>; Date: Fri, 09 Jan 2004 20:57:06 +0100; That's affirmative. I do use Mozilla (with Debian Linux) or even Gnus (with Xemacs) as mailreader. Both did it the right way. 73 Frank _______________________________________________ Amps mailing lis; /archives//html/Amps/2004-01/msg00117.html (8,647 bytes)
6. Re: [Amps] 4cx800a/gu74b anode clips (score: 1): Author: Frank Goenninger <frank_goenninger@t-online.de>; Date: Wed, 04 Feb 2004 11:33:47 +0100; Rich, do you or someone else have a real photo of how the finger stock is attached to the anode ? I tried to image that from the drawing but somehow I can't ;-) Thx es 73 Frank ______________________; /archives//html/Amps/2004-02/msg00030.html (7,476 bytes)
7. [Amps] Re: GU-84b: Drive power required for full power output ? (score: 1): Author: frank_goenninger@t-online.de (Frank Goenninger); Date: Thu, 25 Mar 2004 18:21:09 +0100; Hi again: I initially intended to ask if about 1A of input current will be enough to really get reasonable power output? This comes from a simple calc from Pout of the TRX, which is about 100W produc; /archives//html/Amps/2004-03/msg00273.html (7,630 bytes)
8. Re: [Amps] Re: GU-84b: Drive power required for full power output ? (score: 1): Author: frank_goenninger@t-online.de (Frank Goenninger); Date: Fri, 26 Mar 2004 21:07:32 +0100; Hi Peter, Rich, & all the others on this list, thx for replies. Having expose myself as mostly new to tubes and such, I see that the GU-84b allows for -150V on the grid. Given a 50 Ohm input circuit; /archives//html/Amps/2004-03/msg00299.html (10,727 bytes)
9. [Fwd: Re: [Amps] Re: GU-84b: Drive power required for full poweroutput ?] (score: 1): Author: frank_goenninger@t-online.de (Frank Goenninger); Date: Sun, 28 Mar 2004 11:09:40 +0200; Hi again - sorry to bother you again... Taking all the inputs so far for my GU-84b grid driven amp I come to the following parameterization: Ua = 2750V Ia = 1.5A @ Ug1 = -65V Ug2 = 395V Expected Pout; /archives//html/Amps/2004-03/msg00329.html (11,177 bytes)
10. [Amps] HV cable for abt 200 degrees celsius? (score: 1): Author: frank_goenninger@t-online.de (Frank Goenninger); Date: Sat, 10 Apr 2004 21:45:12 +0200; Hi all: Yet another question for building this GU-84b based amp: What cables would you suggest (and where to get that in Europe) for the High Voltage (abt 4 kV) connections within the amp and between; /archives//html/Amps/2004-04/msg00071.html (6,710 bytes)
11. Re: [Amps] HV cable for abt 200 degrees celsius? (score: 1): Author: frank_goenninger@t-online.de (Frank Goenninger); Date: Wed, 14 Apr 2004 17:02:16 +0200; Thx for the hint - I was so much into special cables that I really did not think of some coax being usable for this. So I make my anode supply connections with the RG400 ?! Any further things to thin; /archives//html/Amps/2004-04/msg00092.html (10,798 bytes)
12. [Amps] Crowbar components (score: 1): Author: frank_goenninger@t-online.de (Frank Goenninger); Date: Wed, 21 Jul 2004 17:47:58 +0200; Hi all on the list: There have now been several posts here pointing to http://www.qsl.net/oe5jfl/flashover.htm as a suitable crowbar circuit. I want to copy that one... When searching for suitable co; /archives//html/Amps/2004-07/msg00139.html (7,388 bytes)
13. Re: [Amps] Crowbar components (score: 1): Author: frank_goenninger@t-online.de (Frank Goenninger); Date: Thu, 22 Jul 2004 20:24:24 +0200; Hi Rich! Well, I see the crowbar as a very elegant solution - and I've never done one myself so far. So, technically speaking - I can't really say what the killer argument for a crowbar would be. I s; /archives//html/Amps/2004-07/msg00150.html (9,429 bytes)
14. Re: [Amps] GS 35B (score: 1): Author: frank_goenninger@t-online.de (Frank Goenninger); Date: Sat, 24 Jul 2004 09:52:15 +0200; Hi John - No my self, but see just one example at http://www.qsl.net/dl4mea/2g35.htm You're welcome. 73, Frank, DG1SBG _______________________________________________ Amps mailing list Amps@contestin; /archives//html/Amps/2004-07/msg00165.html (7,289 bytes)
15. Re: [Amps] GS 35B (score: 1): Author: frank_goenninger@t-online.de (Frank Goenninger); Date: Sun, 25 Jul 2004 11:38:11 +0200; Ouch. Hmm, yes, it helps if one (me in this case) is actually able to read... So, I apologize for sending you all to the wrong place. I actually thought this one was to meet the requirements but did; /archives//html/Amps/2004-07/msg00173.html (7,698 bytes)
16. Re: [Amps] 20kw Dummy load? (score: 1): Author: frank_goenninger@t-online.de (Frank Goenninger); Date: Sun, 15 Aug 2004 11:58:47 +0200; That method really calls for a "20kW Dummy Load Test Weekend" - You organize the lobsters and I bring the beer. Who volunteers to bring the Amp and TRX? It's only that I have to book the flights and; /archives//html/Amps/2004-08/msg00132.html (8,482 bytes)
17. Re: [Amps] HP woes and an idea ... (score: 1): Author: Frank GOENNINGER <frank_goenninger@t-online.de>; Date: Sat, 30 Apr 2005 19:35:34 +0200; John, All on the list, That is what HP once was - when it was Hewlett-Packard and not the now newly named HP Invent. The original HP is, when you look at the first products that left HP, now Agilent.; /archives//html/Amps/2005-04/msg00637.html (11,031 bytes)
18. Re: [Amps] 3cx3000a7 choke (score: 1): Author: Frank Goenninger DG1SBG <frank_goenninger@t-online.de>; Date: Mon, 23 May 2005 22:08:37 +0200; Well, I am going to have the same "problem". I'd like to cover 160m to 10m. I am also looking for getting some more info on the "inner workings" for designing and making a plate choke. I have studied; /archives//html/Amps/2005-05/msg00271.html (8,030 bytes)
19. [Amps] Energy stored in capacitor bank ? (score: 1): Author: Frank Goenninger DG1SBG <frank_goenninger@t-online.de>; Date: Mon, 3 Oct 2005 16:54:46 +0200; Hi all: I am finishing a power supply for a moderate amplifier (in terms of this reflector). As I am dealing with rather large caps I am wondering if am really right when calculating the stored energ; /archives//html/Amps/2005-10/msg00086.html (6,880 bytes)
20. Re: [Amps] Energy stored in capacitor bank ? (score: 1): Author: Frank Goenninger DG1SBG <frank_goenninger@t-online.de>; Date: Mon, 3 Oct 2005 23:34:41 +0200; Am 03.10.2005 um 22:51 schrieb Dan K9ZF: Yeah - 4200 uF, rated for 400 V DC with an ESR of 35 mOhm, rated for 10 A ripple current. 3 inch wide and 4 inch height. ;-) 14 of them makes quite a capacito; /archives//html/Amps/2005-10/msg00096.html (8,220 bytes)

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