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Modern Recording Techniques, 6th Edition by Robert E. Runstein, David Miles Huber

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CHAPTER 10

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Amplifiers

In the world of audio, amplifiers have many applications. They can be designed to amplify, equalize, combine, distribute, or isolate a signal. They can even be used to match the signal impedance between devices. At the heart of any amplifier (amp) system is either a vacuum tube or a semiconductor-type transistor device. Just about everyone knows about these regulating devices, but not everyone has a grasp on how they operate. Here are a few, simple insights into these electronic wonders.

Amplification

In order to best understand how the theoretical process of amplification works, let’s draw an analogy to a valve (a term that ...

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