Transcription of Build a Class-A Amplifier - FIRST WATT
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Build a Class-A Amplifier - FIRST WATT
Build a Class-A AmplifierAudio Feb, 1977 by Nelson PassIn spite of their high cost and low efficiency, class A power amplifiers have recently beenreceiving more attention from audiophiles who demand uncompromising accuracy. Boththe price and quality of these amplifiers result from the operation of their output stages inclass A mode, where the amplifying devices are constantly operated in their linear region,above cutoff and below saturation. Whether made from tubes or semiconductors, circuitsoperating in class A mode yield the smoothest transfer functions and widest bandwidths,hence their near universal application in preamplifiers and other low power audio power amplifiers use class A circuitry exceptin the drive and output stages, where they use class B orAB operating modes to achieve high efficiency.
Build a Class-A Amplifier Audio Feb, 1977 by Nelson Pass In spite of their high cost and low efficiency, class A power amplifiers have recently been
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