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Emitter-follower

amplifier which output flows for appreciably less than half of an electrical cycle upon the sinusoidal input

Class C amplifier

amplifier which amplifiers only the input ac component

amplifier in which any input is transformed into pulses

Class D Audio Amplifier

output stage of an amplifier that requires most attention to power efficiency

power amplifier

Power Amplifier

transistor as amplifier

adjustable electronic component comprising at least three layers of semiconductor and, occasionally, of other materials, which can be turned to the on-state and vice versa

amplifier located before the main amplifier, generally to provide it with a signal of sufficient power level or to obtain the highest possible overall signal-to-noise ratio

Class A amplifier

amplifier which output flows for the whole cycle upon the sinusoidal input

Class b amplifier

amplifier which output flows for approximately half of an electrical cycle upon the sinusoidal input

amplifier which output is proportional to its input