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27th May 2012, 08:53 AM
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#1 |
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diyAudio Member
Join Date: Jul 2005
Location: milan
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The EasyWay AMP
In this project
you can see an inverting power amplifier with: a) only 4 stages b) common base VAS and c) low gain output devices input impedance is low so need a Op-Amp preamplifier ideal gain is G=10 
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29th May 2012, 12:27 PM
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#2 |
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diyAudio Member
Join Date: Feb 2001
Location: USA
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the 24s and 25s are reversed.
You're not running much current through the input transistors. How do you expect to develop any voltage across the 150Ω resistors?
__________________
Candidates for the Darwin Award should not read this author. Last edited by djk; 29th May 2012 at 12:33 PM. |
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29th May 2012, 12:48 PM
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#3 |
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diyAudio Member
Join Date: Jul 2005
Location: milan
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Thanks a lot
see now if works
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