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High fidelity amplifier circuit

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This circuit for a compressor uses a high-fidelity external op amp, and a high gain and wide bandwidth. A compensation network input is necessary for stability. The rectifier capacitor (Cg) is not grounded. but it is linked to the output of an op amp circuit.
High fidelity amplifier circuit



When a compressor is running at high gain (input signal of small size), and is suddenly struck by a signal, overload.

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Electronics: "Basic Amplifiers" pt1-2 1963 US Army Training Film

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