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IEVref: | 722-02-03 | ![](/icons/ecblank.gif) | ID: |
Language: | en | ![](/icons/ecblank.gif) | Status: Standard |
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Term: | carbon (telephone) transmitter
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Synonym1: | carbon microphone
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Definition: | a telephone transmitter which depends for its operation on variations in contact resistance, between carbon granules
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Publication date: | 1992-11 |
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