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1. [TenTec] Omni 5 Feedback (score: 1): Author: "Howell, D. Haney" <howellh@winthrop.edu>; Date: Mon, 28 Sep 2009 15:15:24 -0400; My trusty Omni 5 has been under wraps for a few months. When I fired it up recently I experienced motorboating and rumbling feedback though the speaker. As the old hamfest saw goes, it was working fi; /archives//html/TenTec/2009-09/msg00273.html (6,680 bytes)
2. Re: [TenTec] Omni 5 Feedback (score: 1): Author: "Ron Zond" <k3miy@csonline.net>; Date: Mon, 28 Sep 2009 16:04:44 -0400; haney Check the audio stages and work back. Might have a bad coupling resistor. Ron K3MIY My trusty Omni 5 has been under wraps for a few months. When I fired it up recently I experienced motorboatin; /archives//html/TenTec/2009-09/msg00274.html (7,915 bytes)
3. Re: [TenTec] Omni 5 Feedback (score: 1): Author: Ralph Matheny <mathenyr@marietta.edu>; Date: Mon, 28 Sep 2009 20:49:15 -0400 (EDT); Make sure the "monitor" gain is turned down all the way. Trouble-shooting wise, any of the electrolytic caps on the board that has the AF amp chip would be good suspects. Those sometimes fail when un; /archives//html/TenTec/2009-09/msg00282.html (7,458 bytes)
4. Re: [TenTec] Omni 5 Feedback (score: 1): Author: "Dr. Gerald N. Johnson" <geraldj@weather.net>; Date: Mon, 28 Sep 2009 21:20:00 -0600; Usually motor boating and rumbling feed back are a sign that the power supply bypass electrolytics have gone nearly open or have gone way down in value. That's not only the main power supply but the; /archives//html/TenTec/2009-09/msg00284.html (8,379 bytes)
5. Re: [TenTec] Omni 5 Feedback (score: 1): Author: "Mike Hyder --N4NT--" <Mike_N4NT@embarqmail.com>; Date: Mon, 28 Sep 2009 23:40:40 -0400; Seems in my younger day what you describe was often caused by a bad cathode bypass capacitor. Probably there are similar things that could go wrong today. 73, Mike N4NT ______________________________; /archives//html/TenTec/2009-09/msg00285.html (8,888 bytes)
6. Re: [TenTec] Omni 5 Feedback (score: 1): Author: "Dr. Gerald N. Johnson" <geraldj@weather.net>; Date: Mon, 28 Sep 2009 22:11:00 -0600; Nah, an open cathode bypass just cuts the gain, makes the stage more stable from the inverse feedback of the unbypassed cathode resistor. Its power supply bypassing going low in value that lets the r; /archives//html/TenTec/2009-09/msg00286.html (9,186 bytes)
7. Re: [TenTec] Omni 5 Feedback (score: 1): Author: Bwana Bob <wb2vuf@gti.net>; Date: Tue, 29 Sep 2009 22:31:59 -0400; I've had that on my Paragon, but only with the internal speaker. In my case, it was caused by a little resistance in the shield lead of the audio output. 73, Bob WB2VUF ______________________________; /archives//html/TenTec/2009-09/msg00300.html (9,108 bytes)

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