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How Does a Cathode Follower in a Tube Audio Circuit Work?

How Does a Cathode Follower in a Tube Audio Circuit Work?

A cathode follower is a vacuum tube circuit commonly used in audio applications for impedance matching, buffering, and signal conditioning. It is essentially a common-plate amplifier (also called a common-cathode amplifier with 100% negative feedback) that provides a high input impedance, low output impedance, and unity (or a small amount of) voltage gain. Introduction In the world of vacuum tube amplification, the cathode follower circuit occup…Read Article

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