- Types:
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audio amplifier
an amplifier that increases the amplitude of reproduced sound
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booster, booster amplifier, booster station, relay link, relay station, relay transmitter
an amplifier for restoring the strength of a transmitted signal
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maser
an acronym for microwave amplification by stimulated emission of radiation; an amplifier that works on the same principle as a laser and emits coherent microwave radiation
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gas maser
a maser in which microwave radiation interacts with gas molecules
