amplifier

1. Electronic equipment that increases strength of signals passing through it (synset 102708803)
   is a type of: electronic equipment - equipment that involves the controlled conduction of electrons (especially in a gas or vacuum or semiconductor)
   subtypes:

   • audio amplifier - an amplifier that increases the amplitude of reproduced sound
   • booster, booster amplifier, booster station, relay link, relay station, relay transmitter - an amplifier for restoring the strength of a transmitted signal
   • 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
   is a part of:

   • p.a., p.a. system, pa, pa system, public address system - an electronic amplification system used as a communication system in public areas
   • radio, radio receiver, radio set, receiving set, tuner, wireless - an electronic receiver that detects and demodulates and amplifies transmitted signals
   • stereo, stereo system, stereophonic system, stereophony - reproducer in which two microphones feed two or more loudspeakers to give a three-dimensional effect to the sound

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