carbon microphone

carbon microphone
noun
: a microphone whose operation depends on the alteration of the electrical resistance of carbon contacts

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carbon microphone noun
A microphone in which variations in sound pressure produced in a diaphragm are detected in a current passing through carbon granules which register a decrease of contact resistance as the sound pressure increases
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Main Entry: ↑carbon

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carbon microphone,
a microphone in which an electric current passes through a package of carbon grains whose conductivity varies with its degree of compression. The transmitter in a telephone is a carbon microphone.

Useful english dictionary. 2012.

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  • Carbon microphone — The carbon microphone, also known as a carbon button microphone (or sometimes just a button microphone) or a carbon transmitter, is a sound to electrical signal transducer consisting of two metal plates separated by granules of carbon. One plate… …   Wikipedia

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  • carbon microphone — anglinis mikrofonas statusas T sritis fizika atitikmenys: angl. carbon microphone vok. Kohlekörnermikrophon, n; Kohlemikrophon, n rus. угольный микрофон, m pranc. microphone au charbon, m …   Fizikos terminų žodynas

  • carbon microphone — noun A microphone containing carbon granules, whose electrical resistance varies with pressure …   Wiktionary

  • carbon microphone — /kabən ˈmaɪkrəfoʊn/ (say kahbuhn muykruhfohn) noun a type of microphone in which variations in air pressure caused by sound are transmitted to granules of carbon, the electrical resistance of which varies with the pressure; used in telephone… …  

  • Microphone — For the indie film, see Microphone (film). Microphones redirects here. For the indie band, see The Microphones. A …   Wikipedia

  • microphone — /muy kreuh fohn /, n. an instrument capable of transforming sound waves into changes in electric currents or voltage, used in recording or transmitting sound. [1875 80; MICRO , in sense enlarging (extracted from MICROSCOPE) + PHONE] * * * Device… …   Universalium

  • microphone à charbon — anglinis mikrofonas statusas T sritis automatika atitikmenys: angl. carbon microphone; coal microphone vok. Kohlemikrophon, n rus. угольный микрофон, m pranc. microphone à charbon, m …   Automatikos terminų žodynas

  • microphone au charbon — anglinis mikrofonas statusas T sritis fizika atitikmenys: angl. carbon microphone vok. Kohlekörnermikrophon, n; Kohlemikrophon, n rus. угольный микрофон, m pranc. microphone au charbon, m …   Fizikos terminų žodynas

  • carbon transmitter — noun an early form of carbon microphone …   Wiktionary

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