amplifier

(amplə fī′ər)

noun

  1. a person or thing that amplifies
  2. Electronics a device that increases the strength of a weak electrical signal without changing the other characteristics of the signal

See amplifier in American Heritage Dictionary 4

noun
  1. One that amplifies, enlarges, or extends.
  2. Electronics A device, especially one using transistors or electron tubes, that produces amplification of an electrical signal.

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amplifier

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