ALL meanings of carbon microphone
car·bon mi·cro·phone
C c - noun carbon microphone a microphone in which a diaphragm, vibrated by sound waves, applies a varying pressure to a container packed with carbon granules, altering the resistance of the carbon. A current flowing through the carbon is thus modulated at the frequency of the sound waves 3
- noun carbon microphone A microphone containing carbon granules, whose electrical resistance varies with pressure. 0