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1. [Amps] Jennings voltage rating ? (score: 180): Author: kenw2dtc at comcast.net (kenw2dtc); Date: Mon Jul 28 22:26:11 2003; I have a Jennings fixed vacuum capacitor marked 12 MMFD. The model number is 48 B 100. Does anyone have information on the voltage rating? Thanks and 73, Ken W2DTC; /archives//html/Amps/2003-07/msg00136.html (6,266 bytes)
2. [Amps] 2500 uF at 450V DC for $10.00 each (score: 180): Author: kenw2dtc at comcast.net (kenw2dtc); Date: Tue Jul 1 09:49:57 2003; "2500 uF at 450V new, top-grade caps. Put 10 in series and you have 250 uF at 4500V DC" "Put 10 in series and you have a whole lot of joules to deal with in the event of a flashover, bad idea IMO." *; /archives//html/Amps/2003-07/msg00178.html (7,942 bytes)
3. [Amps] Power supply design considerations (score: 180): Author: kenw2dtc at comcast.net (kenw2dtc); Date: Tue Jul 1 09:50:07 2003; "The second item I am asking for design help on is the power cable to the RF chassis. This will run about 6 feet from the under desk cabinet to the top of the desk through a hole in the bench. It wil; /archives//html/Amps/2003-07/msg00179.html (7,609 bytes)
4. [Amps] transformer rating (score: 180): Author: kenw2dtc at comcast.net (kenw2dtc); Date: Tue Jun 17 08:21:58 2003; Hi, I have a 9 volt 50 amp transformer. If I bring down the primary voltage properly to get 7.5 volts, can I still draw the 50 amps without problems? Thanks, Ken W2DTC; /archives//html/Amps/2003-06/msg00115.html (6,739 bytes)
5. [Amps] THANKS: transformer rating (score: 180): Author: kenw2dtc at comcast.net (kenw2dtc); Date: Wed Jun 18 08:13:06 2003; Many thanks to all who replied to my question: "I have a 9 volt 50 amp transformer. If I bring down the primary voltage properly to get 7.5 volts, can I still draw the 50 amps without problems?" It i; /archives//html/Amps/2003-06/msg00128.html (6,613 bytes)
6. [Amps] transformer CCS (score: 180): Author: kenw2dtc at comcast.net (kenw2dtc); Date: Tue May 13 08:36:06 2003; I have a hypersil plate transformer with CCS ratings listed on the ID plate. I know a little about ICAS ratings but my question is: What percentage increase in KVA over the CCS rating would be allowe; /archives//html/Amps/2003-05/msg00106.html (7,216 bytes)
7. [Amps] Unknown 2m 2x4cx250b design? (score: 180): Author: kenw2dtc at comcast.net (kenw2dtc); Date: Thu Mar 6 03:49:52 2003; Einar, You description sounds like a homebrew amp scaled down from the popular two 4CX250 K2RIW 432 mHz amp from around 1972. The 144 mHz amp was made of two standard aluminum boxes fastened together; /archives//html/Amps/2003-03/msg00233.html (8,298 bytes)
8. [Amps] re: Arcos & Unknown 2m 2x4cx250b designs (score: 180): Author: kenw2dtc at comcast.net (kenw2dtc); Date: Fri Mar 7 16:48:53 2003; Skipp, Thanks for the URL on the stripline amp. I built the original K2RIW 432 mHz amp for ATV when we used narrow band black and white video and on carrier audio. It was nice to step back in time an; /archives//html/Amps/2003-03/msg00313.html (9,840 bytes)
9. [Amps] AL-80B questions (score: 180): Author: kenw2dtc at comcast.net (kenw2dtc); Date: Tue Mar 11 20:49:53 2003; "Why don't you guys meet at a bar someplace and duke it out, like get it over with." One will probably bring brass knuckles and the other nichrome knuckles. 73, Ken W2DTC; /archives//html/Amps/2003-03/msg00461.html (7,691 bytes)
10. [Amps] CB Amps (score: 180): Author: kenw2dtc at comcast.net (kenw2dtc); Date: Thu Mar 13 04:24:20 2003; "I'm going to suggest that pressure be put on Ebay to have the seller put the FCC ID number on all auctions........" Roger, I think there are enough regulations in our lives without getting into a CB; /archives//html/Amps/2003-03/msg00495.html (8,773 bytes)
11. [Amps] Cheap Bird 4410 (score: 180): Author: kenw2dtc at comcast.net (kenw2dtc); Date: Mon Feb 3 16:55:49 2003; Greg, How many 4410 slugs would one need with a labeled rating of 1.8 to 30 mHz to measure 1500 watts. I think some of the slugs can run over $250. 73, Ken W2DTC Hi Amps People There is good Bird 441; /archives//html/Amps/2003-02/msg00044.html (7,330 bytes)
12. [Amps] SELL: 6 Bleeder Resistors 40K@100W (score: 180): Author: kenw2dtc at comcast.net (kenw2dtc); Date: Sat Feb 8 18:04:06 2003; "OK, I give up, how can a wire-wound resistor be non-inductive? How can *any* resistor be made non-inductive ?" Acetylene torch. 73, Ken W2DTC; /archives//html/Amps/2003-02/msg00180.html (7,670 bytes)
13. [Amps] vacuum relay bandswitch (score: 180): Author: kenw2dtc at comcast.net (kenw2dtc); Date: Thu Feb 20 07:33:49 2003; I was thinking of using vacuum relays to bandswitch a pi-network for a 160-80-40 amplifier. What factors must be considered to determine the relay's required voltage and current ratings? What are the; /archives//html/Amps/2003-02/msg00389.html (6,487 bytes)
14. [Amps] thanks on vacuum relays (score: 180): Author: kenw2dtc at comcast.net (kenw2dtc); Date: Thu Feb 20 21:02:50 2003; Thanks ! You guys came through with excellent, timely advice on my question about vacuum relays for bandswitching a pi network I was given first hand experience information, referrals to informative; /archives//html/Amps/2003-02/msg00398.html (6,584 bytes)
15. [Amps] replies to vacuum relays (score: 180): Author: kenw2dtc at comcast.net (kenw2dtc); Date: Fri Feb 21 00:10:00 2003; Guys, Listed below are all the replies I received on vacuum relays, plus the web links. Many thanks and 73, Ken W2DTC -- I use a Kilovac (or Jennings) vacuum relay at moderately high speed CW to do T; /archives//html/Amps/2003-02/msg00401.html (11,497 bytes)
16. [Amps] Its not April 1 yet (score: 180): Author: kenw2dtc at comcast.net (kenw2dtc); Date: Thu Jan 23 17:54:44 2003; John Lyles made reference to Linda Goodman's Star Signs book: "When I first read about purple plates in Linda Goodman's Star Signs book, I was hesitant to believe in the seemingly miraculous properti; /archives//html/Amps/2003-01/msg00195.html (7,946 bytes)
17. [Amps] tube prices in 1959 (score: 180): Author: kenw2dtc at comcast.net (kenw2dtc); Date: Thu Jan 30 01:09:29 2003; During the same period that tubes went up 5X, Real Estate went up 10X in my part of New Jersey. My friend just sold his 1962 $48,000 house for $475,000 ! 73, Ken W2DTC -- For your amusement... I rece; /archives//html/Amps/2003-01/msg00304.html (7,755 bytes)
18. [Amps] Heathkit SB-220/221 HV Transformer (score: 180): Author: kenw2dtc at comcast.net (kenw2dtc); Date: Sat Aug 2 20:43:05 2003; George, Help me out here with my math. You have a transformer rated at 1.170 KVA CCS (1170 * 1) and you suggest running it at 1.960 KVA (2800 * .7). What you are saying is that this particular transf; /archives//html/Amps/2002-09/msg00303.html (8,246 bytes)

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