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Total 14 documents matching your query.

1. [AMPS] RE6B switching time? (score: 1): Author: ve6jy@freenet.edmonton.ab.ca (Don Moman); Date: Fri, 1 Oct 1999 12:57:12 -0600 (MDT); I have several Jennings RE6B vacuum relays, (RE6B-115N300) I'm just wondering if they are suitable for t/r relays etc - I realize they are certainly overkill in the power handling area (for reasonabl; /archives//html/Amps/1999-10/msg00021.html (7,307 bytes)
2. [AMPS] RJ1A RELAY (score: 1): Author: ve6jy@freenet.edmonton.ab.ca (Don Moman); Date: Sun, 4 Jul 1999 20:06:21 -0600 (MDT); Some of you might recall I posted a problem on receive with my Alpha 77Dx.... suspecting the RJ1-A vacuum relay, of course. Original message: What I've seen so far: Antenna is routed fine from a cold; /archives//html/Amps/1999-07/msg00051.html (9,469 bytes)
3. [AMPS] Alpah 77DX rcve bypass problem (score: 1): Author: ve6jy@freenet.edmonton.ab.ca (Don Moman); Date: Mon, 31 May 1999 16:48:42 -0600 (MDT); Lost the receive path somewhere in the Alpha 77DX just before the end of the WPX test this past weekend. The direct/aux slide switch has been by-passed so that isn't the problem. Transmit works fine.; /archives//html/Amps/1999-05/msg00348.html (8,197 bytes)
4. [AMPS] Amplifier Research info request (score: 1): Author: ve6jy@freenet.edmonton.ab.ca (Don Moman); Date: Thu, 9 Jul 1998 00:42:12 -0600 (MDT); Anyone have any info (tubes used, freq range, power etc) on an Amplifier Research model 2000LM12 ? 6 foot rack mount, 3 phase input, appears to be water cooled. Possibly used for video (has pedastal; /archives//html/Amps/1998-07/msg00051.html (7,154 bytes)
5. [AMPS] Alpha 77D problem (score: 1): Author: ve6jy@freenet.edmonton.ab.ca (Don Moman); Date: Wed, 10 Dec 1997 23:56:54 -0700 (MST); I can sure use the expertise of this reflector..... Alpha 77D problems.. Background...77D (says PA-77 on rear, s/n 2986) Has been in use for several years, treated well (I hope) and behaved well. Som; /archives//html/Amps/1997-12/msg00207.html (9,756 bytes)
6. [AMPS] Alpha 77D problem (score: 1): Author: Don Moman <ve6jy@freenet.edmonton.ab.ca> (Don Moman); Date: Thu, 11 Dec 1997 12:30:00 -0700 (MST); Thanks to everyone who replied, it was all very useful stuff. Terry, W6TG hit the proverbial nail on the head with his comments: " > I would try one more 8877 tube. I have seen similar indication fro; /archives//html/Amps/1997-12/msg00224.html (8,064 bytes)
7. [AMPS] Advice on Henry 5K (2 x 3cx1200a7) (score: 1): Author: ve6jy@freenet.edmonton.ab.ca (Don Moman); Date: Sat, 29 Nov 1997 16:59:37 -0700 (MST); Be prepared to: get rid of the furnace (produces lots of heat) get good room sound isolated headphones (lots of air moving) and have years of trouble free use. That's been my experience with the one; /archives//html/Amps/1997-11/msg00396.html (7,466 bytes)
8. [AMPS] Alpha 77D question (score: 1): Author: ve6jy@freenet.edmonton.ab.ca (Don Moman); Date: Wed, 5 Mar 1997 22:57:46 -0700 (MST); Before we had this "amps' reflector I had no amplifier problems and no one to ask if I did. Now I have both..... Alpha 77D (says PA-77 s/n 2986 on the rear) Symptoms.... After 3 min warmup, attemptin; /archives//html/Amps/1997-03/msg00053.html (7,819 bytes)
9. [AMPS] amp tuning, SWR tolerance, and processing vs grid current (score: 1): Author: ve6jy@freenet.edmonton.ab.ca (Don Moman); Date: Thu, 6 Mar 1997 19:46:48 -0700 (MST); Re: Amplifier Tuning I am a firm believer in using a monitor scope with the familiar trapezoidal pattern to show all sorts of info about the amplifier output and its' relationship to the input signal; /archives//html/Amps/1997-03/msg00073.html (8,310 bytes)
10. [AMPS] AIRFLOW (score: 1): Author: ve6jy@freenet.edmonton.ab.ca (Don Moman); Date: Wed, 26 Mar 1997 18:49:25 -0700 (MST); I have used the max/min Radio Shack type thermometers in the airflow on some of my amps...These only go up to 160 or 170 F - not really high enough. They go off scale with the Henry 5-K very quickly,; /archives//html/Amps/1997-03/msg00256.html (7,559 bytes)
11. Re: [Amps] Relays for RF switching (score: 1): Author: "VE6JY Don Moman" <ve6jy@freenet.edmonton.ab.ca>; Date: Sat, 17 Apr 2004 00:23:42 -0000; I would suggest using the encapsulated sealed relays such as the Potter and Brumfield RKS-5DW-12 (about 8$ in Canada) or the lighter rated - and cheaper ($C2.50) Aromat JS1E-12v. I think both are in; /archives//html/Amps/2004-04/msg00104.html (9,552 bytes)
12. Re: [Amps] Would this fit in a Plywood Box? (score: 1): Author: "VE6JY Don Moman" <ve6jy@freenet.edmonton.ab.ca>; Date: Sat, 4 Dec 2004 00:53:16 -0000; This is one of the Radio Switzerland sites, soon to be demolished, as RSI is shutting down. HE9RSI is a special event amateur radio operation from the site, has been active for several weeks now. 73; /archives//html/Amps/2004-12/msg00056.html (8,990 bytes)
13. Re: [Amps] Would this fit in a Plywood Box? (score: 1): Author: "VE6JY Don Moman" <ve6jy@freenet.edmonton.ab.ca>; Date: Sat, 4 Dec 2004 01:49:20 -0000; Make that HE3RSI if you want to look further.... 73 Don VE6JY -- Original Message -- From: "VE6JY Don Moman" <ve6jy@freenet.edmonton.ab.ca> To: "Gary Smith" <wa6fgi@sbcglobal.net>; <amps@contesting.c; /archives//html/Amps/2004-12/msg00058.html (10,430 bytes)
14. Re: [Amps] 8122 x 12 (score: 1): Author: "VE6JY Don Moman" <ve6jy@freenet.edmonton.ab.ca>; Date: Wed, 29 Dec 2004 04:49:35 -0000; Each tube is run way below max... the amp has to be unconditionally stable into any output load - from 0 to infinity over its rated range. Efficiency is not its' strong point, but linearity and survi; /archives//html/Amps/2004-12/msg00371.html (8,365 bytes)

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