June 2006
Beginner
488 pages
13h 2m
English
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27
Trimodal audio power, Part II
The same components that dominate amplifier noise performance also determine the output d.c. offset; if R9 is reduced to minimise the source resistance seen by Tr3, then the value of R8 is scaled to preserve the same closed-loop gain, and this reduces the voltage drops caused by input transistor base currents.
My previous amplifier designs assumed that a ± 50 mV output d.c. offset is acceptable. This allowed d.c. trimming, offset servos, etc. to be greatfully dispensed with. However, it is not in my nature to leave well enough alone, and it could be argued that ± 50 mV is on the high side for a top-flight amplifier. For this reason, I have reduced this range as much as possible without resorting to a servo; the required ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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