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Total 8 documents matching your query.

1. [Amps] 30L1 keying (score: 1): Author: <ka9egw@ka9egw.com>; Date: Tue, 27 Dec 2016 15:35:58 -0600; So I have a 30L1, and am trying to design a keying circuit that will allow keying the -160V relay line with a radio whose amp-key output is a common-emitter NPN rated to pull down a max of +100V.not; /archives//html/Amps/2016-12/msg00448.html (6,961 bytes)
2. Re: [Amps] 30L1 keying (score: 1): Author: "Jerry O. Stern" <jsternmd@att.net>; Date: Tue, 27 Dec 2016 16:50:58 -0500; Take a look at Jim's (W8ZR) website for his StationPro II schematics. He incorporates a nice simple MOSFET design to accommodate the 30L-1 keying as well as modern keying. www.w8zr.com 73 es HNY Jerr; /archives//html/Amps/2016-12/msg00449.html (7,397 bytes)
3. Re: [Amps] 30L1 keying (score: 1): Author: "Jim Garland" <4cx250b@miamioh.edu>; Date: Tue, 27 Dec 2016 16:35:44 -0700; Thanks for the plug, Jerry. Yes, the simple amplifier keying circuit in the StationPro is rated at 400V at 250 mA, AC or plus or minus DC. so it will key virtually any homebrew or commercial amplifie; /archives//html/Amps/2016-12/msg00451.html (10,241 bytes)
4. Re: [Amps] 30L1 keying (score: 1): Author: "Jim Garland" <4cx250b@miamioh.edu>; Date: Tue, 27 Dec 2016 16:59:02 -0700; _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps; /archives//html/Amps/2016-12/msg00452.html (7,435 bytes)
5. Re: [Amps] 30L1 keying (score: 1): Author: "David Gow" <d.gow@frontier.com>; Date: Tue, 27 Dec 2016 16:27:16 -0800; If you want plug and play for virtually any transceiver or transmitter to any amplifier the Ameritron ARB-704 for about $40 dollars does it perfectly. I am using one with my KX3/KPXA100 driving a Hen; /archives//html/Amps/2016-12/msg00453.html (8,119 bytes)
6. Re: [Amps] 30L1 keying (score: 1): Author: "David Harmon" <k6xyz@sbcglobal.net>; Date: Tue, 27 Dec 2016 22:43:34 -0600; The ARB -704 works well on my 3KA and 3K Classic X MKll as well...no problems. But....don't use the 704 on a Collins 30L-1 with that -160vdc on the keyline. Ameritron claims that the 704 will work wi; /archives//html/Amps/2016-12/msg00455.html (9,334 bytes)
7. Re: [Amps] 30L1 keying (score: 1): Author: "Fern Rivard" <crc@cyberlink.ca>; Date: Tue, 27 Dec 2016 22:10:10 -0700; Don K4LAJ makes a nice soft key interface for the 30L1 which installs internally in the amp and works very well. He also has a nice quiet replacement fan for the 30L1 as well as a nice cooling fan to; /archives//html/Amps/2016-12/msg00456.html (10,266 bytes)
8. [Amps] 30L1 keying (score: 1): Author: "Jim Thomson" <jim.thom@telus.net>; Date: Thu, 5 Jan 2017 11:04:37 -0800; The ARB -704 works well on my 3KA and 3K Classic X MKll as well...no problems. But....don't use the 704 on a Collins 30L-1 with that -160vdc on the keyline. Ameritron claims that the 704 will work wi; /archives//html/Amps/2017-01/msg00094.html (8,425 bytes)

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