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Total 10 documents matching your query.

1. [TenTec] triton 540 reversed polarity (score: 1): Author: "Louis A. Ciotti Jr." <lciotti@twcny.rr.com>; Date: 06 Aug 2007 14:31:00 -0400; I am tring to get my grandfathers old tentec triton 540 up and running. I had to order a replacement power cord from the power supply to the radio from tentec... Well it came through with the polarit; /archives//html/TenTec/2007-08/msg00119.html (7,193 bytes)
2. Re: [TenTec] triton 540 reversed polarity (score: 1): Author: "Stuart Rohre" <rohre@arlut.utexas.edu>; Date: Mon, 6 Aug 2007 21:24:32 -0500; Reversal of DC polarity may have failed some electrolytic capacitors. Also, if it is working weakly, maybe a diode in a bridge rectifier is open. How long was the polarity reversed? That may tell if; /archives//html/TenTec/2007-08/msg00127.html (7,211 bytes)
3. [TenTec] triton 540 reversed polarity (score: 1): Author: "Louis A. Ciotti Jr." <lciotti@twcny.rr.com>; Date: 07 Aug 2007 09:22:00 -0400; More information: When the polarity was reversed this is what happened. I powered on the powersupply, the current meter on it spiked and then when to zero current. This took les than a second, and I; /archives//html/TenTec/2007-08/msg00130.html (7,365 bytes)
4. Re: [TenTec] triton 540 reversed polarity (score: 1): Author: "Dr. Gerald N. Johnson" <geraldj@storm.weather.net>; Date: Tue, 07 Aug 2007 10:05:14 -0600; My experiences with reversed polarity is that the fuses are reliable indicators of fried semiconductors. That semiconductors fail faster than fuses open, so time isn't much of a factor. ICs dislike r; /archives//html/TenTec/2007-08/msg00134.html (8,896 bytes)
5. Re: [TenTec] triton 540 reversed polarity (score: 1): Author: "Louis A. Ciotti Jr." <lciotti@twcny.rr.com>; Date: 07 Aug 2007 12:36:00 -0400; Thanks for the information. I have located the manual which has a schematic. I guess I am going to have to dig in and start changing parts. I do not think I destroyed every IC as the radio powers up; /archives//html/TenTec/2007-08/msg00135.html (9,529 bytes)
6. Re: [TenTec] triton 540 reversed polarity (score: 1): Author: "Carl Moreschi" <n4py@arrl.net>; Date: Tue, 7 Aug 2007 13:13:37 -0400; Don't overlook the possibility that the Trition was protected from reverse polarity by a reverse diode across the 12 volt supply connection. If this is the case, the diode would most likely now be sh; /archives//html/TenTec/2007-08/msg00136.html (11,698 bytes)
7. Re: [TenTec] triton 540 reversed polarity (score: 1): Author: "Louis A. Ciotti Jr." <lciotti@twcny.rr.com>; Date: 07 Aug 2007 13:26:00 -0400; Thanks again, 73 Lou KC2RVD --Original Message-- From: Carl Moreschi <n4py@arrl.net> Date: Tuesday, Aug 7, 2007 1:15 pm Subject: Re: [TenTec] triton 540 reversed polarity To: lciotti@twcny.rr.com, Di; /archives//html/TenTec/2007-08/msg00139.html (10,263 bytes)
8. Re: [TenTec] triton 540 reversed polarity (score: 1): Author: Kevin Purcell <kevinpurcell@pobox.com>; Date: Tue, 7 Aug 2007 10:38:22 -0700; Why not try to troubleshoot it rather than randomly changing parts? Do you have a signal source for audio and a tunable one for RF? Start injecting an AF signal at the speaker audio amp and work back; /archives//html/TenTec/2007-08/msg00140.html (12,019 bytes)
9. Re: [TenTec] triton 540 reversed polarity (score: 1): Author: "Louis A. Ciotti Jr." <lciotti@twcny.rr.com>; Date: 07 Aug 2007 13:48:00 -0400; I would do this, but I do not have any source for injecting the signals required. Right now I only have an old 40 MHz oscilliscope and a DVM... --Original Message-- From: Kevin Purcell <kevinpurcell@; /archives//html/TenTec/2007-08/msg00141.html (10,147 bytes)
10. Re: [TenTec] triton 540 reversed polarity (score: 1): Author: "Dr. Gerald N. Johnson" <geraldj@storm.weather.net>; Date: Tue, 07 Aug 2007 12:17:54 -0600; Have you a finger? it can inject signals while acting as an antenna. For the price of a battery and an op amp you could have a decent audio source. Have you another receiver you could tap for signals; /archives//html/TenTec/2007-08/msg00142.html (9,372 bytes)

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