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preamplifier

[ pree-am-pluh-fahy-er ]

noun

  1. a device in the amplifier circuit of a radio or phonograph that increases the strength of a weak signal for detection and further amplification.

preamplifier

/ priːˈæmplɪˌfaɪə /

noun

  1. an electronic amplifier used to improve the signal-to-noise ratio of an electronic device. It boosts a low-level signal to an intermediate level before it is transmitted to the main amplifier Sometimes shortened topreamp

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Word History and Origins

Origin of preamplifier1

First recorded in 1930–35; pre- + amplifier

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preamppreanesthetic

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