Mail Archive Search: <+subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[Amps\]\s+electronic\s+switching\s*$/>

Results:

References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[Amps\]\s+electronic\s+switching\s*$/: 35 ]

Total 35 documents matching your query.

1. [Amps] electronic switching (score: 1): Author: on4kj at skynet.be (on4kj); Date: Mon Jun 16 08:16:32 2003; Hello Folks, About steatite wafers used for band switching. Why dont we see switching systems based on pindiode, for input ( 100 w ) must be possible nowadays. Even for high output power !! What say; /archives//html/Amps/2003-06/msg00110.html (9,032 bytes)
2. [Amps] electronic switching (score: 1): Author: peter.chadwick at Zarlink.Com (peter.chadwick@Zarlink.Com); Date: Tue Jun 17 08:21:54 2003; I haven't seen any PINs that will handle more than 1500 volts. Additionally, you'll need 10 microsecond or so reverse recovery time to handle 160metres. Plus the tank circuit circulating current can; /archives//html/Amps/2003-06/msg00114.html (7,912 bytes)
3. [Amps] electronic switching (score: 1): Author: bill at wjschmidt.com (Dr. William J. Schmidt, II); Date: Tue Jun 17 08:22:10 2003; Well, we do..... there are diodes that will handle as much as 10kW.... but they are expensive. Harris uses them in their gear... Sincerely, Dr. William J. Schmidt, II K9HZ "Collector of Edison Wind-u; /archives//html/Amps/2003-06/msg00118.html (10,501 bytes)
4. [Amps] electronic switching (score: 1): Author: 2 at vc.net (2); Date: Wed Jun 18 08:12:41 2003; ** What is the piv rating of such diodes, William? Rich, AG6K, 805-386-3734, www.vcnet.com/measures; /archives//html/Amps/2003-06/msg00122.html (12,093 bytes)
5. [Amps] electronic switching (score: 1): Author: stevek at jmr.com (Steve Katz); Date: Wed Jun 18 08:12:45 2003; /archives//html/Amps/2003-06/msg00123.html (9,586 bytes)
6. [Amps] electronic switching (score: 1): Author: stevek at jmr.com (Steve Katz); Date: Thu Jun 19 08:31:52 2003; Hi Rich, PINs are readily available to 1000Vpk and of course can be placed in series for higher voltage applications. Remember, a PIN is not a P-N junction device and doesn't really have a "PIV" rati; /archives//html/Amps/2003-06/msg00134.html (14,081 bytes)
7. [Amps] electronic switching (score: 1): Author: 2 at vc.net (2); Date: Thu Jun 19 08:32:05 2003; ** Hello, Steve -- For 10kW @ 50-ohms, a minimum piv of 2000v is needed. Rich, AG6K, 805-386-3734, www.vcnet.com/measures; /archives//html/Amps/2003-06/msg00137.html (14,928 bytes)
8. [Amps] electronic switching (score: 1): Author: stevek at jmr.com (Steve Katz); Date: Thu Jun 19 08:32:11 2003; 2000V is no problem at all for a pair of PINs in series. Actually, for such a high power level as 10kW, I'd recommend at least two in series, maybe more, in order to achieve excellent isolation when; /archives//html/Amps/2003-06/msg00138.html (16,674 bytes)
9. [Amps] electronic switching (score: 1): Author: peter.chadwick at Zarlink.Com (peter.chadwick@Zarlink.Com); Date: Thu Jun 19 08:32:29 2003; The original question was about replacing ceramic switches - which in our context are usually used in the tank circuit. PINs used at 50 ohms are a totally different kettle of fish, and of course can; /archives//html/Amps/2003-06/msg00142.html (11,211 bytes)
10. [Amps] electronic switching (score: 1): Author: peter.chadwick at Zarlink.Com (peter.chadwick@Zarlink.Com); Date: Thu Jun 19 08:32:33 2003; Sorry chaps, I misled you. It's no longer MACOM, but Alpha Industries for the PIN info. Sugegsted URL for a good primer on PINs is <http://www.alphaind.com/products_display_item.asp?did=2311> 73 Pete; /archives//html/Amps/2003-06/msg00143.html (8,322 bytes)
11. [Amps] electronic switching (score: 1): Author: on4kj at skynet.be (on4kj); Date: Fri Jun 20 08:21:11 2003; Thanks Peter, I downloades the theorical stuff. ( had an issue of that theorical stuff from Philips in 1974, but cant find it back) Very interesting, but now its time to get thru the paperwork, and d; /archives//html/Amps/2003-06/msg00144.html (10,426 bytes)
12. [Amps] electronic switching (score: 1): Author: wb8jkr at juno.com (wb8jkr@juno.com); Date: Fri Jun 20 08:21:20 2003; One problem with PIN's is if the RF voltage the PIN is subjected to in its "off" state exceeds the bias applied to the PIN to turn it off, the RF voltage will attemp to turn the PIN back on. In the l; /archives//html/Amps/2003-06/msg00146.html (15,825 bytes)
13. [Amps] electronic switching (score: 1): Author: 2 at vc.net (2); Date: Fri Jun 20 08:21:38 2003; ** 1500W into 50-ohms =s c. 775v p-p. To prevent a PIN diode from conducting at any point during the cycle, at least 800v of reverse bias is needed, provided the SWR was 1 to 1, otherwise the PIN di; /archives//html/Amps/2003-06/msg00150.html (16,915 bytes)
14. [Amps] electronic switching (score: 1): Author: stevek at jmr.com (Steve Katz); Date: Fri Jun 20 08:21:48 2003; Hi Peter, I didn't see the original question for some reason. I wouldn't use PINs for a high-powered bandswitch on the hi-Z end of the plate tank, and I doubt that many have done so successfully; alt; /archives//html/Amps/2003-06/msg00152.html (13,817 bytes)
15. [Amps] electronic switching (score: 1): Author: stevek at jmr.com (Steve Katz); Date: Fri Jun 20 08:21:53 2003; /archives//html/Amps/2003-06/msg00153.html (19,002 bytes)
16. [Amps] electronic switching (score: 1): Author: 2 at vc.net (2); Date: Fri Jun 20 08:22:04 2003; ** As seen on an oscilloscope, with 1500W-pep into 50-ohms, the peak to peak V measures a bit over 750v. - There is more than one PIN diode in a T/R switch. During receive, one of the PIN diodes con; /archives//html/Amps/2003-06/msg00155.html (20,231 bytes)
17. [Amps] electronic switching (score: 1): Author: 2 at vc.net (2); Date: Fri Jun 20 08:22:09 2003; ** As seen on an oscilloscope, with 1500W-pep into 50-ohms, the peak to peak V measures a bit over 750v. - There is more than one PIN diode in a T/R switch. During receive, one of the PIN diodes con; /archives//html/Amps/2003-06/msg00156.html (20,263 bytes)
18. [Amps] electronic switching (score: 1): Author: stevek at jmr.com (Steve Katz); Date: Fri Jun 20 08:22:15 2003; /archives//html/Amps/2003-06/msg00157.html (9,513 bytes)
19. [Amps] electronic switching (score: 1): Author: 2 at vc.net (2); Date: Fri Jun 20 08:22:52 2003; ** how could it be not necessary to isolate the transceiver from the antenna jack on the Amp? I would like to see a diagram. Rich, AG6K, 805-386-3734, www.vcnet.com/measures; /archives//html/Amps/2003-06/msg00162.html (9,718 bytes)
20. [Amps] electronic switching (score: 1): Author: peter.chadwick at Zarlink.Com (peter.chadwick@Zarlink.Com); Date: Fri Jun 20 08:23:08 2003; I intend to do a PIN switch for my next amplifier. I managed to get some Unitrode diodes rated at 1.2kv and 1 amp - 10 wire ended and 10 stud mount with tape leads, all with a long trr so they are go; /archives//html/Amps/2003-06/msg00164.html (9,540 bytes)

Current List: 1 - 20
Page: [1] [2]