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1. [Amps] Alpha 99 question (score: 1): Author: Roger D Johnson <n1rj@adelphia.net>; Date: Tue, 05 Dec 2006 14:17:21 -0500; I'm working on a friends Alpha that appears to have blown the screen regulator circuit. The circuit is a IRF 830 with the gate regulated at 360 volts by 4 Zeners. Two of the Zeners are 150 volt and t; /archives//html/Amps/2006-12/msg00029.html (6,481 bytes)
2. Re: [Amps] Alpha 99 question (score: 1): Author: TexasRF@aol.com; Date: Tue, 5 Dec 2006 15:12:52 EST; Just a wild guess on my part: zener tolerances are not wonderful, perhaps the zener in the 30v location is hand picked as needed to make the total voltage correct. 73, Gerald K5GW In a message dated; /archives//html/Amps/2006-12/msg00030.html (7,538 bytes)

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