October 2011
Intermediate to advanced
700 pages
20h 29m
English
Content preview from Valve Amplifiers, 4th Edition
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Chapter 6
The Power Amplifier
Publisher Summary
The task of a power amplifier is to amplify a processed signal and deliver power into a load such as a loudspeaker. It should do this without introducing spurious signals, such as hum, noise, oscillation, or audible distortion, while driving a wide range of loads. Additionally, it should be tolerant of abuse, such as open or short circuits. Valves designed specifically for audio use generally have optimized configurations that are detailed in the manufacturer’s data sheets. Designing output stages for audio valves from first principles is reinventing the wheel, but an overview of the practicalities is most useful; therefore, one will indulge in a brief analysis of a currently fashionable topology. ...
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