Mail Archive Search: <+subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[Amps\]\s+Alpha\s+77\s+start\s+up\s*$/>

Results:

References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[Amps\]\s+Alpha\s+77\s+start\s+up\s*$/: 22 ]

Total 22 documents matching your query.

1. [Amps] Alpha 77 start up (score: 1): Author: Jan Ditzian <ditzian@windstream.net>; Date: Fri, 18 Feb 2011 10:59:09 -0500; I just received an Alpha 77 Dx, modified as a two-holer, as a gift (I have very understanding friends). However, it came with a problem--it does not work. The startup light does not come on. The prev; /archives//html/Amps/2011-02/msg00134.html (7,994 bytes)
2. Re: [Amps] Alpha 77 start up (score: 1): Author: "Paul Christensen" <w9ac@arrl.net>; Date: Sat, 19 Feb 2011 14:29:21 -0500; Jan, The problem appears to be isolated to the three-minute warm-up timer. You're seeing 2600V which is correct while the three-minute timer is activating. First, measure the +24 VDC supply voltage.; /archives//html/Amps/2011-02/msg00144.html (10,605 bytes)
3. Re: [Amps] Alpha 77 start up (score: 1): Author: Jan Ditzian <ditzian@windstream.net>; Date: Sun, 20 Feb 2011 19:39:47 -0500; Paul, I note that the light on the CW/Low button came on when I pressed that button. Also, one of the meters is lit. If I am reading things right, all bulbs are 28 VDC, so I expect that the 24 volt s; /archives//html/Amps/2011-02/msg00147.html (12,585 bytes)
4. Re: [Amps] Alpha 77 start up (score: 1): Author: Jan Ditzian <ditzian@windstream.net>; Date: Sun, 20 Feb 2011 23:04:42 -0500; Paul, It sounds like I should hook up a transceiver and dummy load and see what happens. The CW/Low light definitely came on and stayed on when I went to CW/Low. Actually, the SSB/HI button up also f; /archives//html/Amps/2011-02/msg00148.html (15,692 bytes)
5. [Amps] Alpha 77 start up (score: 1): Author: Jan Ditzian <ditzian@windstream.net>; Date: Mon, 21 Feb 2011 08:10:09 -0500; I am going to try to get some bulbs for the Alpha 77, two x 334 for the meter that has none, and one x 387 for the standby button that may have a burned out bulb. Can someone tell me how to access th; /archives//html/Amps/2011-02/msg00149.html (7,617 bytes)
6. Re: [Amps] Alpha 77 start up (score: 1): Author: "Paul Christensen" <w9ac@arrl.net>; Date: Sun, 20 Feb 2011 20:33:01 -0500; The CW/LOW light should only come on when depressed after the 3-minute timer activation. The light cannot activate without the 3-minute timer working. Also, it should not immediately come on when dep; /archives//html/Amps/2011-02/msg00150.html (14,007 bytes)
7. [Amps] Alpha 77 start up (score: 1): Author: Jan Ditzian <ditzian@windstream.net>; Date: Mon, 21 Feb 2011 17:31:07 -0500; Paul, I did some investigating and some testing. First, two of the three bulbs were bad. I cannot get these locally, so I have ordered both meter and switch bulbs on the internet and they will arrive; /archives//html/Amps/2011-02/msg00153.html (9,190 bytes)
8. Re: [Amps] Alpha 77 start up (score: 1): Author: "Paul Christensen" <w9ac@arrl.net>; Date: Mon, 21 Feb 2011 08:39:47 -0500; On the Alpha 77 series, access to the switch lamps can be accomplished from the front of the amp. The easiest way is to remove the top two lenses to give you better access to the STBY/READY lens. Ta; /archives//html/Amps/2011-02/msg00154.html (9,975 bytes)
9. [Amps] Alpha 77 start up (score: 1): Author: Jan Ditzian <ditzian@windstream.net>; Date: Tue, 22 Feb 2011 19:59:20 -0500; Just so you guys do not think I am ignoring you, I appreciate all the recommendations. I already found a bub (tnx Bob) supplier through Amazon, and I will consider the LED option as an interesting pr; /archives//html/Amps/2011-02/msg00167.html (8,188 bytes)
10. [Amps] Alpha 77 start up (score: 1): Author: Jan Ditzian <ditzian@windstream.net>; Date: Sun, 27 Feb 2011 13:44:41 -0500; Gentlemen and all others, I have begun troubleshooting and I would like to share the results, and I think I have found the problem. All the following continuity measurements are with the amp off and; /archives//html/Amps/2011-02/msg00195.html (10,089 bytes)
11. Re: [Amps] Alpha 77 start up (score: 1): Author: "Paul Christensen" <w9ac@arrl.net>; Date: Mon, 28 Feb 2011 09:49:07 -0500; Jan, I think your reasoning is good. I'm not sure how the amp ever worked with the configuration you've described. K5 has all terminals populated. Two on the bottom for the coil and three on the top; /archives//html/Amps/2011-02/msg00204.html (9,488 bytes)
12. Re: [Amps] Alpha 77 start up (score: 1): Author: k8mlm@aol.com; Date: Mon, 28 Feb 2011 12:58:25 -0500; Jan, I have some photographs of the botton input side of my amp. I'll send them to you tonight. Bob K8MLM Gentlemen and all others, I have begun troubleshooting and I would like to share the results,; /archives//html/Amps/2011-02/msg00208.html (10,765 bytes)
13. Re: [Amps] Alpha 77 start up (score: 1): Author: Jan Ditzian <ditzian@windstream.net>; Date: Mon, 28 Feb 2011 15:05:07 -0500; Paul, Perhaps I was not clear in my description. I did not actually figure out what went where. There were three connections to the relay, and a continuity test showed that nothing was connected to a; /archives//html/Amps/2011-02/msg00209.html (10,083 bytes)
14. Re: [Amps] Alpha 77 start up (score: 1): Author: Jan Ditzian <ditzian@windstream.net>; Date: Tue, 01 Mar 2011 21:08:45 -0500; I tried to operate the relay from a 24 VDC supply, but all I ever got was a spark. No relay sound or indication that the relay had operated. I ordered a replacement HC-1 24 volt relay from Max Gain s; /archives//html/Amps/2011-03/msg00018.html (7,184 bytes)
15. Re: [Amps] Alpha 77 start up (score: 1): Author: Ron Youvan <ka4inm@tampabay.rr.com>; Date: Wed, 02 Mar 2011 12:42:06 -0500; /*snip*/ Is is possible that you got hold of an ac relay? Test it with 24 Volts ac to see. -- Ron KA4INM - Endless Loop: n. see Loop, Endless. Loop, Endless: n. see Endless Loop. -- Random Shack Data; /archives//html/Amps/2011-03/msg00024.html (7,573 bytes)
16. Re: [Amps] Alpha 77 start up (score: 1): Author: K8MLM@aol.com; Date: Wed, 2 Mar 2011 21:37:12 EST; Jan, You were talking about an input relay in line #4 of your 2/28 e-mail. The relay you are describing is K5, a vacuum relay, and is a SPDT output relay. The input relay, K4, a SPST is a reed relay.; /archives//html/Amps/2011-03/msg00029.html (8,427 bytes)
17. Re: [Amps] Alpha 77 start up (score: 1): Author: Jan Ditzian <ditzian@windstream.net>; Date: Wed, 02 Mar 2011 22:22:53 -0500; Bob, The relay which seems not to work is K5, the vacuum relay. I have ordered one. The problem is that, as I check continuity, none of the poles are connected to each other. This means that the SPDT; /archives//html/Amps/2011-03/msg00031.html (10,074 bytes)
18. Re: [Amps] Alpha 77 start up (score: 1): Author: K8MLM@aol.com; Date: Thu, 3 Mar 2011 04:36:06 EST; Jan, OK Got it. No additional suggestions right now. Bob K8MLM In a message dated 3/2/2011 10:22:54 P.M. Eastern Standard Time, ditzian@windstream.net writes: Bob, The relay which seems not to work i; /archives//html/Amps/2011-03/msg00032.html (10,077 bytes)
19. Re: [Amps] Alpha 77 start up (score: 1): Author: "Paul Christensen" <w9ac@arrl.net>; Date: Fri, 4 Mar 2011 07:39:03 -0500; Agree. Jan, replace K5 when it arrives and update us then. There should have been able to measure continuity between the vacuum relay wiper arm and the normally-closed terminal. With +24DC on the co; /archives//html/Amps/2011-03/msg00039.html (7,779 bytes)
20. Re: [Amps] Alpha 77 start up (score: 1): Author: "Jim W7RY" <w7ry@inbox.com>; Date: Fri, 4 Mar 2011 07:15:39 -0800; Does it have a diode connected across it? And your forward biasing it instead of reverse biasing it? 73 Jim W7RY _______________________________________________ Amps mailing list Amps@contesting.com; /archives//html/Amps/2011-03/msg00041.html (9,114 bytes)

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