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1. [Amps] AN762 Bias Question (score: 1): Author: "Rich Miller" <av8torrich@yahoo.com>; Date: Mon, 2 May 2011 08:29:04 -0400; Hello All: I recently completed 180 Watt solid state amplifier based on the AN762 application note by Motorola. I am using a pair of the MRF421MP NPN transistors. I re-reviewed the application note a; /archives//html/Amps/2011-05/msg00000.html (6,958 bytes)
2. Re: [Amps] AN762 Bias Question (score: 1): Author: Steve Thompson <g8gsq72@gmail.com>; Date: Mon, 02 May 2011 17:20:35 +0100; I suspect the use of 'bias' in two different contexts might be muddying the waters. The 100mA per device is the standing or quiescent current the transistors should draw from the 12V supply in order; /archives//html/Amps/2011-05/msg00001.html (7,515 bytes)
3. [Amps] AN762 Bias Question (score: 1): Author: "Rich Miller" <av8torrich@yahoo.com>; Date: Mon, 2 May 2011 15:33:13 -0400; Hi Steve: I think that answers my question. I believe then the then the standing current is set correctly at 200mA, and since I know the pass transistor used with the bias circuit can handle an Thank; /archives//html/Amps/2011-05/msg00003.html (6,503 bytes)
4. Re: [Amps] AN762 Bias Question (score: 1): Author: "Jim Garland" <4cx250b@muohio.edu>; Date: Mon, 2 May 2011 15:00:06 -0600; \ Irving for discussion following: Rich, I believe the 100mA per device is the quiescent collector current, not the quiescent base current (which is 100mA/hfe=30 ~ 3mA per device). The 27Amps is the; /archives//html/Amps/2011-05/msg00004.html (10,624 bytes)

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