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Total 7 documents matching your query.

1. [TenTec] Titan 425 Major H/L Voltage drop (score: 1): Author: Carlin Royal <n5oe@nctwb.net>; Date: Thu, 02 Dec 2010 23:08:30 -0600; Hello group, I am having an issue with my Titan 425 that has me baffled. Upfront let me say I am only a beginner with electronics and have limited equipment to work with. The symptoms are obvious vol; /archives//html/TenTec/2010-12/msg00038.html (9,852 bytes)
2. Re: [TenTec] Titan 425 Major H/L Voltage drop (score: 1): Author: "Ron Castro" <ronc@sonic.net>; Date: Thu, 2 Dec 2010 21:30:16 -0800; Assuming K1 is good, I would check K7, the surge relay. If that doesn't close, or has bad contacts, the dropping resistor will stay in the primary circuit and drop the voltage under load. That would; /archives//html/TenTec/2010-12/msg00040.html (11,536 bytes)
3. Re: [TenTec] Titan 425 Major H/L Voltage drop (score: 1): Author: "Dr. Gerald N. Johnson" <geraldj@weather.net>; Date: Thu, 02 Dec 2010 23:45:43 -0600; Your problem reminded me of an amp I fixed remotely for a ham in this county. In the 425, K7 and the fried resistor are a soft start circuit that slows the turn on capacitor charging current surge an; /archives//html/TenTec/2010-12/msg00041.html (11,196 bytes)
4. Re: [TenTec] Titan 425 Major H/L Voltage drop (score: 1): Author: Jim Brown <k9yc@audiosystemsgroup.com>; Date: Fri, 03 Dec 2010 10:46:03 -0800; The Titan 425 has two power supplies -- one that supplies 28VDC to run the logic and control circuits, and the 2.7kV supply for the output stage. The dial lights run from the 28VDC supply, so if they; /archives//html/TenTec/2010-12/msg00051.html (9,571 bytes)
5. Re: [TenTec] Titan 425 Major H/L Voltage drop (score: 1): Author: ken.d.brown@hawaiiantel.net; Date: Fri, 3 Dec 2010 19:27:06 +0000 (GMT); The Titan 425 has two power supplies -- one that supplies 28VDC to run the logic and control circuits, and the 2.7kV supply for the output stage. True, and they come from two separate secondaries on; /archives//html/TenTec/2010-12/msg00054.html (8,351 bytes)
6. Re: [TenTec] Titan 425 Major H/L Voltage drop (score: 1): Author: "Dr. Gerald N. Johnson" <geraldj@weather.net>; Date: Fri, 03 Dec 2010 13:31:51 -0600; But the burned up surge limiting resistor points the poor voltage regulation of both supplies to the soft start relay not taking it out of the circuit. If the soft start relay was doing its job, the; /archives//html/TenTec/2010-12/msg00055.html (13,257 bytes)
7. Re: [TenTec] Titan 425 Major H/L Voltage drop (score: 1): Author: Jim Brown <k9yc@audiosystemsgroup.com>; Date: Fri, 03 Dec 2010 12:04:15 -0800; I'd call that VERY unlikely. The soft start circuit, as noted by Jerry, Ron, and me is a far more likely cause. I mentioned the caps because there is also the possibility of a "two problem problem,"; /archives//html/TenTec/2010-12/msg00057.html (8,695 bytes)

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