Meaning of preamplifier in English:


Pronunciation /priːˈamplɪfʌɪə/

Translate preamplifier into Spanish


  • An electronic device that amplifies a very weak signal, for example from a microphone or pickup, and transmits it to a main amplifier.

    ‘This makes it suitable for audio applications, including audio amplifiers and preamplifiers, home entertainment system, mixing desks and audio recording equipment.’
    • ‘The microphone signal was amplified by a low-noise preamplifier and was processed by a two-phase lock-in amplifier.’
    • ‘Microphone preamplifiers seem to come in two flavors these days: modern designs with lots of bells and whistles (such as EQ, dynamics and A / D converters) and vintage designs, which tend to take a more minimalist approach.’
    • ‘The cover has a surface thermally coupled to the preamplifier to conduct heat from the preamplifier.’
    • ‘We generally call the first stage the preamplifier, though it may be the only amplification stage.’
    • ‘These antennas contain preamplifiers providing gain levels of 26 dB (standard gain) and 35 dB (high gain).’
    • ‘Placing the preamplifiers as close to the detectors as possible minimizes the output impedance for driving further stages.’
    • ‘An amplifier probe hybridizes to a preamplifier forming a branched DNA complex and generating enough signal sites to be detected directly after labeling.’
    • ‘To start with, you need a turntable or tape deck, a stereo preamplifier or integrated amp, a computer with a line-in audio jack (most desktops qualify, many laptops don't), and cables to hook them together.’
    • ‘The seismic components of vocalizations were filtered and amplified separately from the acoustic signals to compensate for not having a preamplifier for the geophones.’
    • ‘It is possible for the preamplifier to saturate on a strong signal and produce intermodulation products that degrade reception on adjacent channels.’
    • ‘If you're interested in one of these link leads (contains a preamplifier and speaker, does not require a battery), and/or VHF and UHF radios to suit, give me a call or email.’
    • ‘It adds an essential component: the decoder, which also serves as a preamplifier that can make audio adjustments and also select from among several sound sources.’
    • ‘The present invention uses a novel shock-sensing method that is both reliable and low-cost, using a modified head preamplifier to detect servo fields from adjacent disk surfaces, as well as the disk surface being written or read.’
    • ‘In 1960, the concept of combining a mic/line preamplifier, low- and high-frequency equalizer, and an echo send into one small module that used only one connector was revolutionary.’
    • ‘Electric signals were measured on a set-up described previously, with the modification that a very low-noise homemade current preamplifier was used.’