Search String: Display: Description: Sort:

Results:

References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[Amps\]\s+Alpha\s+76\s+question\s*$/: 6 ]

Total 6 documents matching your query.

1. [Amps] Alpha 76 question (score: 1)
Author: Ted <k8aqm1629t@comcast.net>
Date: Sun, 22 Nov 2015 08:49:33 -0500
Folks, My Alpha 76 periodically "snaps" loudly (arcs?) when idling...maybe every 20-30 minutes. Any ideas what this may be? It seems to work great though. 73, Ted K8AQM ______________________________
/archives//html/Amps/2015-11/msg00142.html (6,741 bytes)

2. Re: [Amps] Alpha 76 question (score: 1)
Author: Manfred Mornhinweg <manfred@ludens.cl>
Date: Tue, 24 Nov 2015 00:41:41 +0000
Ted, I don't know anything specific about that Alpha, but I have seen this kind of arcing at regular intervals when there is a simple power supply that has no bleeder and no load on it. There are ver
/archives//html/Amps/2015-11/msg00148.html (7,365 bytes)

3. Re: [Amps] Alpha 76 question (score: 1)
Author: John Bodine <john.bodine@gmail.com>
Date: Tue, 24 Nov 2015 12:04:43 -0500
Hi Ted, Have you vacuumed out the amplifier recently? -- Later, John Bodine/WU2E _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mail
/archives//html/Amps/2015-11/msg00151.html (8,526 bytes)

4. Re: [Amps] Alpha 76 question (score: 1)
Author: MU 4CX250B <4cx250b@miamioh.edu>
Date: Tue, 24 Nov 2015 09:51:55 -0700
I have an Alpha 76 that I converted to 6 m years ago, which exhibited the same symptoms. The problem was internal arcing in one of the elderly electrolytic capacitors in the power supply. I ended up
/archives//html/Amps/2015-11/msg00152.html (8,986 bytes)

5. [Amps] Alpha 76 question (score: 1)
Author: "Jim Thomson" <jim.thom@telus.net>
Date: Wed, 25 Nov 2015 20:22:05 -0800
Ted, I don't know anything specific about that Alpha, but I have seen this kind of arcing at regular intervals when there is a simple power supply that has no bleeder and no load on it. There are ver
/archives//html/Amps/2015-11/msg00154.html (9,402 bytes)

6. Re: [Amps] Alpha 76 question (score: 1)
Author: Paul Christensen <w9ac@arrl.net>
Date: Sat, 28 Nov 2015 18:49:08 -0500
Adding to the list of possibilities, I had two similar problems in my Alpha 70/77 amps that were traced to two different causes. In the first case, the silicon HV wiring failed. I've never been impre
/archives//html/Amps/2015-11/msg00158.html (11,511 bytes)


This search system is powered by Namazu