Mail Archive Search: <+from:craxd1@ezwv.com>

Results:

References: [ +from:craxd1@ezwv.com: 683 ]

Total 683 documents matching your query.

181. Re: [Amps] Non-inductive resistors (score: 1): Author: craxd <craxd1@ezwv.com>; Date: Tue, 28 Sep 2004 16:23:26 -0400; Bill, I was thinking of that when I typed that. The bodies and forms of those large grid resistors may hold them too far apart to work. About the only way to do it , maybe, would be to wind two alloy; /archives//html/Amps/2004-09/msg00475.html (11,686 bytes)
182. [Amps] Power Supply loaded DC output (score: 1): Author: craxd <craxd1@ezwv.com>; Date: Sat, 02 Oct 2004 12:54:16 -0400; Manuel, It's according to what type of rectifier you'll be using, the capacitance of the filters, and the frequency (50 Hz or 60 Hz). A full wave rectifier is approximately a 5% drop and a half wave; /archives//html/Amps/2004-10/msg00016.html (8,690 bytes)
183. Re: [Amps] 3-500Z Recomendations (score: 1): Author: craxd <craxd1@ezwv.com>; Date: Sat, 02 Oct 2004 13:18:03 -0400; I,m gonna go out on a limb here but here goes. Richardson Electronics pulls the strings on the Eimac tubes now. They also own the brand names Cetron and Amperex. They private label for everyone else; /archives//html/Amps/2004-10/msg00018.html (10,624 bytes)
184. [Amps] About MPD and Richardson (score: 1): Author: craxd <craxd1@ezwv.com>; Date: Sat, 02 Oct 2004 14:13:30 -0400; After my last post about Richardson Electronics owning MPD, I did a little research. I hadn't looked into this since 1990 so I found that the employees bought the stock away from Richardson. Below is; /archives//html/Amps/2004-10/msg00019.html (8,277 bytes)
185. Re: [Amps] 3-500Z Recomendations (score: 1): Author: craxd <craxd1@ezwv.com>; Date: Sat, 02 Oct 2004 16:27:56 -0400; Rich, I had heard about the DOJ getting after Eddie but on Eimacs main page, towards the bottom you'll see them still pushing Richardson. Quotes; Sockets & Hardware "Eimac´s extensive line of s; /archives//html/Amps/2004-10/msg00023.html (15,407 bytes)
186. [Amps] Transformer in GLA 1000 B : OK for 2xGI 7 ? (score: 1): Author: craxd <craxd1@ezwv.com>; Date: Mon, 04 Oct 2004 21:38:37 -0400; Hello, Keep in mind that when you use a doubler circuit, you will cut the available current in half. The transformer wattage will always stay the same. The GLA 1000 runs at about 1100-1200 Vdc with a; /archives//html/Amps/2004-10/msg00036.html (7,513 bytes)
187. [Amps] L4B HV diodes (score: 1): Author: craxd <craxd1@ezwv.com>; Date: Mon, 04 Oct 2004 22:13:52 -0400; Yuri, The M4G5 is a 600 Volt, 3 amp diode. I would replace it with a 1N5408 which is a 1000 Volt, 3 amp. The case style is different but is the same type (rectifier) diode. Will Matney Hi, anybody kn; /archives//html/Amps/2004-10/msg00039.html (7,060 bytes)
188. Re: [Amps] bias for 3cx3000 (score: 1): Author: craxd <craxd1@ezwv.com>; Date: Mon, 04 Oct 2004 22:25:22 -0400; A cheap way to do it is the way Rich says below. Actually you can use both his techniques in his two posts. Use the rectifier (1N5408) string for the adjustable bias, and the resistor in series, shor; /archives//html/Amps/2004-10/msg00040.html (9,277 bytes)
189. Re: [Amps] L4B HV diodes (score: 1): Author: craxd <craxd1@ezwv.com>; Date: Mon, 04 Oct 2004 22:45:22 -0400; Yuri, Not necessarily, you may get by with replacing the one diode with the 1N5408. I think the 1N5406 is the 600 V, 3 amp. They should all have a drop of about 0.7 volts a piece. I only found one da; /archives//html/Amps/2004-10/msg00041.html (9,152 bytes)
190. Re: [Amps] L4B HV diodes (score: 1): Author: craxd <craxd1@ezwv.com>; Date: Tue, 05 Oct 2004 12:27:53 -0400; Ian is correct. You might get lucky replacing just the one but if its values is different than the others, it will most likely lead to premature failure. Anytime I have one rectifier in a HV string b; /archives//html/Amps/2004-10/msg00047.html (9,522 bytes)
191. Re: [Amps] Transformer in GLA 1000 B : OK for 2xGI 7 ? (score: 1): Author: craxd <craxd1@ezwv.com>; Date: Tue, 05 Oct 2004 12:45:40 -0400; Steve, It does. A transformer needs to be sized for the intended circuit. A doubler circuit requires more current than does a bridge rectifier, actually more than X2 because of the arrangement. I thi; /archives//html/Amps/2004-10/msg00048.html (9,504 bytes)
192. Re: [Amps] Transformer in GLA 1000 B : OK for 2xGI 7 ? (score: 1): Author: craxd <craxd1@ezwv.com>; Date: Tue, 05 Oct 2004 13:53:32 -0400; Ken, The Dahl transformer will provide 2.1 amperes continuous. However, if it were to be re-rated to ICAS, the current could be multiplied by 30%-50%. Keep in mind that the wire size must be correct; /archives//html/Amps/2004-10/msg00051.html (13,050 bytes)
193. [Amps] Transformer shop update (score: 1): Author: craxd <craxd1@ezwv.com>; Date: Tue, 05 Oct 2004 15:55:36 -0400; Hello, I figured I'd let everyone know how far along I was on starting the transformer shop. I have everything here now to finish the large winding lathe I started. All the quotes is in from the diff; /archives//html/Amps/2004-10/msg00053.html (7,558 bytes)
194. Re: [Amps] Transformer shop update (score: 1): Author: craxd <craxd1@ezwv.com>; Date: Tue, 05 Oct 2004 23:48:57 -0400; George, I was actually going to make them heavier than that. The screen windings were going to be rated at 250 mA, the bias at 125 mA, the 12 V at 2 amperes, and the 6 V winding at 10 amperes. Most a; /archives//html/Amps/2004-10/msg00055.html (8,996 bytes)
195. Re: [Amps] Transformer shop update (score: 1): Author: craxd <craxd1@ezwv.com>; Date: Wed, 06 Oct 2004 00:31:29 -0400; Manuel, It's very easy for me to compete using EI cored transformers, the C-core is another case. C-cores are expensive to buy one at a time. The only way you can come out is buy about three of the s; /archives//html/Amps/2004-10/msg00056.html (13,013 bytes)
196. Re: [Amps] Transformer pricing (score: 1): Author: craxd <craxd1@ezwv.com>; Date: Wed, 06 Oct 2004 01:12:30 -0400; Manuel, I went and took a look at the transformer from Ameritron. I can sell that transformer for that price using an EI core ($250.00 + S&H). Dahl has it listed as 2570 Vac @ 800 mA, ICAS. I can als; /archives//html/Amps/2004-10/msg00057.html (13,203 bytes)
197. Re: [Amps] Transformer shop update (score: 1): Author: craxd <craxd1@ezwv.com>; Date: Wed, 06 Oct 2004 12:15:46 -0400; Ian, It's no problem adding more voltage but the core size will most likely go up and the price. If I recall when I worked this one out, the coil come awful close to the window width. That means I'd; /archives//html/Amps/2004-10/msg00059.html (13,828 bytes)
198. Re: [Amps] Transformer shop update (score: 1): Author: craxd <craxd1@ezwv.com>; Date: Wed, 06 Oct 2004 12:16:46 -0400; Joe, I still can't see $2500.00 for that. Take into consideration the large C-core plate transformers by Dahl. They all run $350.00 each and are heavy suckers. It would take seven of these to equal t; /archives//html/Amps/2004-10/msg00060.html (18,027 bytes)
199. [Amps] Re: Transformer in GLA 1000 B : OK for 2xGI 7 ? (score: 1): Author: craxd <craxd1@ezwv.com>; Date: Wed, 06 Oct 2004 12:36:48 -0400; David, You can "kind of" go by those charts. Really, the core has to be sized by several factors more than the weight. It's according to what type of circuit they'll go in, the frequency, duty cycle,; /archives//html/Amps/2004-10/msg00061.html (8,019 bytes)
200. Re: [Amps] Re: Transformer in GLA 1000 B : OK for 2xGI 7 ? (score: 1): Author: craxd <craxd1@ezwv.com>; Date: Wed, 06 Oct 2004 17:12:40 -0400; David, Actually they have that transformer de-rated some by calling it a 1150 VA. It actually is about 1495 watts or VA for single phase. This leads me to believe they probably wound this for CCS dut; /archives//html/Amps/2004-10/msg00069.html (10,341 bytes)

Current List: 181 - 200
Page: [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] [16] [17] [18] [19] [20]