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MICROFONO CARBON [1 record]

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Record 1 2009-02-17

English

Subject field(s)
  • Audio Technology
  • Radio Broadcasting

French

Domaine(s)
  • Électroacoustique
  • Radiodiffusion
DEF

Microphone dont le principe de fonctionnement repose sur les variations de la résistance électrique de contact de granules, généralement en graphite.

Spanish

Campo(s) temático(s)
  • Electroacústica
  • Radiodifusión
CONT

El micrófono de carbón puede ser comparado a una resistencia inserta en el circuito de la corriente de alimentación: las vibraciones del aire mueven la membrana y modifican la resistencia del micrófono y, consiguientemente, la corriente que pasa por el mismo. Estos micrófonos dan excesivo ruido de fondo y solamente son prácticos para transmitir la palabra en la gama de frecuencias de 80 a 3500 hertzios.

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