The history of Berlin of the past 100 years shows a great many names, inventions, and developments in the fields of science, fine art, and technology. This also refers to audio with regard to telephone, film, disk records, radio, and television. For the electroacoustic transmission, the microphone is the first link of a long chain. This presentation addresses the contributions made in Berlin from 1880 through 1943, up to the development of this transducer. Discussed will be the simple carbon granule microphone, the Reisz microphone, the rf-condenser microphone, the kathodophone, the ribbon microphone, and the condenser microphones with dc polarization.
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