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141. [Amps] icom/yaesu/k3 interface (score: 1): Author: gdaught6@stanford.edu; Date: Mon, 08 Nov 2010 16:31:00 -0800; Some time ago I provided info on my interface to control Icom amps from Yaesu and K3 transceivers. Someone even made a PC board out of it, as I recall. Would that person(s) please contact me? tnx es; /archives//html/Amps/2010-11/msg00057.html (6,903 bytes)
142. [Amps] (Fwd) icom/yaesu/k3 interface (score: 1): Author: gdaught6@stanford.edu; Date: Thu, 11 Nov 2010 14:14:07 -0800; I'll try this again... -- Forwarded message follows -- Some time ago I provided (to someone on this list) info on my interface to control Icom amps from Yaesu and K3 transceivers. Someone even made a; /archives//html/Amps/2010-11/msg00162.html (6,705 bytes)
143. Re: [Amps] Building a Mock Up (score: 1): Author: gdaught6@stanford.edu; Date: Wed, 17 Nov 2010 10:07:52 -0800; I do one in cardboard to try to 'optimize' layout (never knowing what will really be optimum) then I do one in thin aluminum, to get all of the holes where I want them. I try to visualize and then mo; /archives//html/Amps/2010-11/msg00305.html (8,364 bytes)
144. Re: [Amps] Building a Mock Up (score: 1): Author: gdaught6@stanford.edu; Date: Wed, 17 Nov 2010 10:39:29 -0800; Colin asked... exactly the way you describe. Also, did you ever design cars, as I have had a number of cars built the same way. And, the RME 6900 receiver is another one. Did you work on that? Not gu; /archives//html/Amps/2010-11/msg00310.html (7,252 bytes)
145. Re: [Amps] Black Heat Shields (score: 1): Author: gdaught6@stanford.edu; Date: Sun, 19 Dec 2010 21:35:37 -0800; Mike wrote... No they don't. An object in thermal equilibrium with its surroundings will absorb and radiate energy at the same rate. If it absorbs more than it radiates, it will heat up. If it radiat; /archives//html/Amps/2010-12/msg00276.html (8,891 bytes)
146. Re: [Amps] 7094 Tubes (score: 1): Author: gdaught6@stanford.edu; Date: Mon, 24 Jan 2011 16:27:24 -0800; Carl wrote... I have a few NOS Eimac 4-125A's if anyone would like a couple. They have been HV pot tested and the filaments work, drawing the correct current at the appropriate voltage. 73, George T; /archives//html/Amps/2011-01/msg00258.html (7,081 bytes)
147. Re: [Amps] amp with push-pull output and magnetic coupling to the antenna (score: 1): Author: gdaught6@stanford.edu; Date: Fri, 28 Jan 2011 09:12:52 -0800; Gene May wrote... push-pull, probably use tetrodes (tentatively 4CX600J's) and couple the tubes' tank circuit to the antenna circuit with what is often nicknamed a "swinging link". A "swinging link"; /archives//html/Amps/2011-01/msg00382.html (8,704 bytes)
148. Re: [Amps] 813 Amplifier Article (score: 1): Author: gdaught6@stanford.edu; Date: Thu, 31 Mar 2011 09:05:47 -0700; Rob, K5UJ wrote... I've got two NOS, sealed in their plastic envelopes, 4-65A's. If anyone is interested, make an offer. 73, George T Daughters, K6GT CU in the California QSO Party (CQP) October 1-2,; /archives//html/Amps/2011-03/msg00299.html (8,285 bytes)
149. Re: [Amps] GU-84B Conversion (score: 1): Author: gdaught6@stanford.edu; Date: Tue, 12 Apr 2011 19:03:34 -0700; Carl and Bill wrote... I've got a nice pair of used but tested good 3-400Z's I'll part with. Make an offer. 73, George T Daughters, K6GT CU in the California QSO Party (CQP) October 1-2, 2011 _______; /archives//html/Amps/2011-04/msg00342.html (7,447 bytes)
150. [Amps] antenna relay connections (score: 1): Author: gdaught6@stanford.edu; Date: Sat, 18 Jun 2011 17:41:15 -0700; Hi Group, I am putting together a fairly big amp (4CX3000A) and I've gotten to the question 'What is a good way to connect to the terminals of the vacuum output relay?' I'll use big coax up to within; /archives//html/Amps/2011-06/msg00228.html (6,871 bytes)
151. [Amps] short coax needed (score: 1): Author: gdaught6@stanford.edu; Date: Thu, 07 Jul 2011 20:13:18 -0700; Colleagues, I am in need of about 2 feet of LMR400UF and 2 feet of LMR600UF. Does anyone have either or both that you'd sell me? Look in your coax 'odds and ends' box, please. I'll pay a reasonable p; /archives//html/Amps/2011-07/msg00065.html (6,428 bytes)
152. Re: [Amps] Photos posted of high voltage test setup of a YC-176 (score: 1): Author: gdaught6@stanford.edu; Date: Thu, 20 Oct 2011 09:27:15 -0700; LB3HC wrote... <snip> That's assuming a bit too much. I'd say it means you have a good VACUUM, but: the filament might be open, or have low emission the grid might be damaged from a previous overcurr; /archives//html/Amps/2011-10/msg00064.html (7,802 bytes)
153. Re: [Amps] reducing the reactance of a wirewound resistor (score: 1): Author: gdaught6@stanford.edu; Date: Sun, 05 Feb 2012 09:23:57 -0800; Except spell it "Ayrton-Perry". 73, George T Daughters, K6GT CU in the California QSO Party (CQP) October 6-7, 2012 _______________________________________________ Amps mailing list Amps@contesting.; /archives//html/Amps/2012-02/msg00018.html (7,452 bytes)
154. Re: [Amps] 432 Cavity Amps; Thomson TH 331 (score: 1): Author: gdaught6@stanford.edu; Date: Fri, 02 Mar 2012 11:10:32 -0800; Paul wrote... Wow! Did that ever ring a memory bell in my head! I (as an airborne radio operator) used to hear (on 11.228 Mcs IIRC) 'Wolf wolf this is Luger this is Luger Do not answer do not answer'; /archives//html/Amps/2012-03/msg00036.html (8,371 bytes)
155. Re: [Amps] Sourcing HV Air Dielectric Caps (score: 1): Author: gdaught6@stanford.edu; Date: Thu, 22 Mar 2012 12:11:23 -0700; Pat B. wrote... well insulated from each other and ground, with maybe 1/8 - 1/4 spacing and 5 - 10 KV, 1 ma power supplies. The fan pulls incoming air through the fixed capacitor and a lot of the dus; /archives//html/Amps/2012-03/msg00237.html (7,717 bytes)
156. Re: [Amps] every db lost re Tubes vs. Solid State (score: 1): Author: gdaught6@stanford.edu; Date: Tue, 01 May 2012 11:16:40 -0700; K9YC wrote... Some years ago, I discovered a 'cure' for the problems brought to my station by cheapie connectors. They ALL went into the S**can! Since then, no problems. No connector problems at leas; /archives//html/Amps/2012-05/msg00018.html (7,780 bytes)
157. Re: [Amps] water or vapour phased cooling for SS (score: 1): Author: gdaught6@stanford.edu; Date: Thu, 03 May 2012 09:16:48 -0700; Many have recently written about water and vapor cooling. This reminded me that I have a used heat exchanger/radiator thingie from a former Alpha 70-V that is just taking up shelf space. I'd part wit; /archives//html/Amps/2012-05/msg00117.html (7,387 bytes)
158. Re: [Amps] ND2X (score: 1): Author: gdaught6@stanford.edu; Date: Thu, 28 Jun 2012 09:23:13 -0700; I get "This domain has expired. If you owned..." etc. Lots of advertisements is all I see. 73, George T Daughters, K6GT CU in the California QSO Party (CQP) October 6-7, 2012 _______________________; /archives//html/Amps/2012-06/msg00440.html (7,025 bytes)
159. Re: [Amps] Zener Screen Regulators (score: 1): Author: gdaught6@stanford.edu; Date: Wed, 05 Sep 2012 19:32:28 -0700; Bill wrote (over and over) This is so easy. The filament/cathode has to be brought up to a proper operating temperature to emit electrons. When they are emitted, they can flow to other electrodes in; /archives//html/Amps/2012-09/msg00073.html (9,838 bytes)
160. Re: [Amps] The GU84B and GU78B tubes (score: 1): Author: gdaught6@stanford.edu; Date: Sat, 27 Oct 2012 19:29:44 -0700; Leigh wrote... < snip > Not THAT fine! Compare IMD numbers with an 8877 or 3cx800. Don't blame W6TC for that! Set your focus on Svetlana USA in Huntsville. And I believe that some (many? most? all?); /archives//html/Amps/2012-10/msg00189.html (7,340 bytes)

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