What does preamplifier mean?

Definitions for preamplifier
priˈæm pləˌfaɪ ərpream·pli·fi·er

This dictionary definitions page includes all the possible meanings, example usage and translations of the word preamplifier.

Wiktionary

  1. preamplifiernoun

    a voltage amplifier for amplifying a low-level input signal; its output is the input to a higher-level amplifier

Wikipedia

  1. Preamplifier

    A preamplifier, also known as a preamp, is an electronic amplifier that converts a weak electrical signal into an output signal strong enough to be noise-tolerant and strong enough for further processing, or for sending to a power amplifier and a loudspeaker. Without this, the final signal would be noisy or distorted. They are typically used to amplify signals from analog sensors such as microphones and pickups. Because of this, the preamplifier is often placed close to the sensor to reduce the effects of noise and interference.

Wikidata

  1. Preamplifier

    A preamplifier is an electronic amplifier that prepares a small electrical signal for further amplification or processing. A preamplifier is often placed close to the sensor to reduce the effects of noise and interference. It is used to boost the signal strength to drive the cable to the main instrument without significantly degrading the signal-to-noise ratio. The noise performance of a preamplifier is critical; according to Friis's formula, when the gain of the preamplifier is high, the SNR of the final signal is determined by the SNR of the input signal and the noise figure of the preamplifier. In a home audio system, the term 'preamplifier' may sometimes be used to describe equipment which merely switches between different line level sources and applies a volume control, so that no actual amplification may be involved. In an audio system, the second amplifier is typically a power amplifier. The preamplifier provides voltage gain but no significant current gain. The power amplifier provides the higher current necessary to drive loudspeakers. Preamplifiers may be: ⁕incorporated into the housing or chassis of the amplifier they feed

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Numerology

  1. Chaldean Numerology

    The numerical value of preamplifier in Chaldean Numerology is: 3

  2. Pythagorean Numerology

    The numerical value of preamplifier in Pythagorean Numerology is: 2

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"preamplifier." Definitions.net. STANDS4 LLC, 2024. Web. 2 Nov. 2024. <https://www.definitions.net/definition/preamplifier>.

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