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241. SV: [AMPS] More info on Grimeton (score: 1): Author: sm5ki@algonet.se (sm5ki); Date: Mon, 27 Dec 1999 23:52:02 +0000; Callsign of Grimeton is SAQ a very old call sign. -- FAQ on WWW: http://www.contesting.com/ampsfaq.html Submissions: amps@contesting.com Administrative requests: amps-REQUEST@contesting.com Problems:; /archives//html/Amps/1999-12/msg00395.html (6,572 bytes)
242. SV: [AMPS] Cathode Lifetimes (score: 1): Author: sm5ki@algonet.se (Hans Goldschmidt); Date: Mon, 01 Nov 1999 07:29:41 +0100; Hej! For long tube life you have better read EIMACs application note how to treat your tubes, burn-in, how filament voltage affects life etc. By the way: would it not be wonderful if the EIMAC people; /archives//html/Amps/1999-11/msg00008.html (9,699 bytes)
243. SV: [AMPS] Re: KM1H (score: 1): Author: sm5ki@algonet.se (Hans Goldschmidt); Date: Mon, 01 Nov 1999 07:51:39 +0100; Very good Janne up there in Lapponia, the land of the midnight sin ( sorry sun,hi ). Which brings me to my problem: I have been cheated some years ago by a guy in Linwood NJ and I can not get any hel; /archives//html/Amps/1999-11/msg00011.html (10,375 bytes)
244. SV: [AMPS] K2RIW 432 Mhz Stripline Amplifier (Dec 72 QST) (score: 1): Author: sm5ki@algonet.se (Hans Goldschmidt); Date: Mon, 01 Nov 1999 11:44:48 +0100; Hello! The Brittish Short Wave magazine had a long series of articles on a very advanced power supply for the K2RIWs and a lot of valuable info on screen grid tubes. Also in an old issue of the Radco; /archives//html/Amps/1999-11/msg00017.html (9,732 bytes)
245. SV: [AMPS] Re: Elementary question...(Shame) (score: 1): Author: sm5ki@algonet.se (Hans Goldschmidt); Date: Tue, 02 Nov 1999 21:46:30 +0100; Again: Can I put a variable condenser in series with the inductor in a pi network to get a variable inductance? An old WRL GALAXY with a large number of parallellt sweep tubes used this methode. If p; /archives//html/Amps/1999-11/msg00084.html (9,917 bytes)
246. [AMPS] Old linear articles on CDs (score: 1): Author: sm5ki@algonet.se (Hans Goldschmidt); Date: Tue, 02 Nov 1999 22:22:52 +0100; Very nice you like my idea. A good starter would be to ask EIMAC or Bill W6SAI to get permission to reprint EIMACs application bulletins. I have them, but I have not the knowledge or scanning fascili; /archives//html/Amps/1999-11/msg00087.html (11,215 bytes)
247. SV: [AMPS] Re: Elementary question...(Shame) (score: 1): Author: sm5ki@algonet.se (Hans Goldschmidt); Date: Tue, 02 Nov 1999 22:30:30 +0100; Thanks Roy. Although I have a number of motordriven HUGE QRO swedish roller coils, I need for a compact portable linear a smarter solution. Lets see what the math boys have to say? Hej daa de Hans --; /archives//html/Amps/1999-11/msg00088.html (9,006 bytes)
248. [AMPS] Capacitor series resonance (score: 1): Author: sm5ki@algonet.se (Hans Goldschmidt); Date: Thu, 04 Nov 1999 07:56:56 +0100; -- If we had that CD with long forgotten articles on linears, you could eventually see there a copy of Bill Orrs RADIO HANDBOOK 22d edition writing about the series resonance of capacitors: 0.02uF MI; /archives//html/Amps/1999-11/msg00130.html (8,566 bytes)
249. SV: [AMPS] Capacitor series resonance (score: 1): Author: sm5ki@algonet.se (Hans Goldschmidt); Date: Thu, 04 Nov 1999 09:00:54 +0100; Very interesting. What capacitor would be the best then? Hej daa de Hans SM5KI -- -- FAQ on WWW: http://www.contesting.com/ampsfaq.html Submissions: amps@contesting.com Administrative requests: amps-; /archives//html/Amps/1999-11/msg00133.html (8,658 bytes)
250. SV: [AMPS] A look underneath the Ugly amp. chassis. (score: 1): Author: sm5ki@algonet.se (Hans Goldschmidt); Date: Thu, 04 Nov 1999 14:16:15 +0100; I remember seeing in QST a primary voltage regulator ( with tyristors ) sensing the secondary high voltage by means of a voltage divider. Much better than a reostat or a Variac. In a filament stabili; /archives//html/Amps/1999-11/msg00142.html (10,894 bytes)
251. SV: SV: [AMPS] Capacitor series resonance (score: 1): Author: sm5ki@algonet.se (Hans Goldschmidt); Date: Thu, 04 Nov 1999 14:33:43 +0100; I do not understand you. I thought multilayer chip condensers are just like a sandwich and every other piece of bread is connected with each other? de Hans -- -- FAQ on WWW: http://www.contesting.com; /archives//html/Amps/1999-11/msg00143.html (10,460 bytes)
252. [AMPS] LCC capacitors on 145 MHz? (score: 1): Author: sm5ki@algonet.se (Hans Goldschmidt); Date: Thu, 04 Nov 1999 14:56:20 +0100; I have a number of commercial round transmitting type condensers made by LCC ( made in France?) used once in a 2 kW ship transmitter instead of the variable condensers in a roller coil tuned pi-L ano; /archives//html/Amps/1999-11/msg00145.html (7,015 bytes)
253. SV: [AMPS] AL1500 (score: 1): Author: sm5ki@algonet.se (Hans Goldschmidt); Date: Fri, 05 Nov 1999 10:41:17 +0100; Hej! I do not have the schematic on this amplifier but maybe it uses a similar circuitry as the SB220? I repaired one years ago that draw a lot of grid current even without without drive and if I rem; /archives//html/Amps/1999-11/msg00169.html (8,780 bytes)
254. SV: [AMPS] MLA-2500 mods (score: 1): Author: sm5ki@algonet.se (sm5ki); Date: Tue, 09 Nov 1999 09:10:39 +0100; Hello! One 3CX800 is inside the same as two 8875s. I have asked before the following: why not replace the 8875s with triode connected 8072s (or 8122s or that requires some mechanical changes and is m; /archives//html/Amps/1999-11/msg00223.html (9,386 bytes)
255. [AMPS] Are blue 4CX1000As OK? (score: 1): Author: sm5ki@algonet.se (sm5ki); Date: Tue, 09 Nov 1999 09:21:52 +0100; I am interested in a couple of 4CX1000As in clean original cartoons. The only thing is they have a bluish coulor. Is this normal after many years after they were made EIMAC? They may have been checke; /archives//html/Amps/1999-11/msg00225.html (6,739 bytes)
256. SV: [AMPS] Re: SB220 problem (score: 1): Author: sm5ki@algonet.se (sm5ki); Date: Wed, 10 Nov 1999 21:04:59 +0100; Hej! Your diode in the + 110 volts relay supply is probably shorted. Do not forget to replace the electrolytic condenser in that supply if so. Is it not strange that those SB 220s still run years aft; /archives//html/Amps/1999-11/msg00262.html (9,988 bytes)
257. SV: SV: [AMPS] Re: SB220 problem (score: 1): Author: sm5ki@algonet.se (sm5ki); Date: Wed, 10 Nov 1999 21:31:39 +0100; Thanks Rich but you must agree two paralellt tiny receiving type switch contacts is not what you want to have when things go rough after your tenth beer in the night or in a contest. Hej daa de Hans.; /archives//html/Amps/1999-11/msg00264.html (9,852 bytes)
258. [AMPS] .The 1970 tubes in the SB 220 (score: 1): Author: sm5ki@algonet.se (sm5ki); Date: Thu, 11 Nov 1999 22:11:49 +0100; I still have those (made in France) AMPEREX/PHILIPS YD 1130 used in the original SB 220- the ones with graphite anodes, remember? When looking into one old PHILIPS tube manual on the YD 1130, the tub; /archives//html/Amps/1999-11/msg00294.html (10,512 bytes)
259. SV: [AMPS] 4CM 400,000A (score: 1): Author: sm5ki@algonet.se (sm5ki); Date: Tue, 16 Nov 1999 07:22:08 +0100; This tube sounds good as a driver for the dream linear I never built. De Hans SM5KI -- -- FAQ on WWW: http://www.contesting.com/ampsfaq.html Submissions: amps@contesting.com Administrative requests:; /archives//html/Amps/1999-11/msg00339.html (8,546 bytes)
260. SV: [AMPS] Eimac care and feeding (score: 1): Author: sm5ki@algonet.se (sm5ki); Date: Thu, 18 Nov 1999 11:25:51 +0000; Now hear this: The EIMAC people have been extremely helpful over the years. They send QUICKLY all their APPLICATION NOTES for amateurs, a complete set of data sheets, CARE AND FEEDING OF POWER TUBES,; /archives//html/Amps/1999-11/msg00380.html (14,591 bytes)

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