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Telephone (Transmitter and Receiver), Philipp Reis

Philipp Reis, Friedrichsdorf1863

Deutsches Museum

Deutsches Museum

Reis first reproduced single tones on a telephone. Speech could only be understood indistinctly.
Reis based the design of his transmitter on the human ear. The sounds go via the cone to a diaphragm which they set vibrating. This opens or closes a circuit. In the receiver the incoming signals cause the needle to vibrate. The wooden box serves as a resonator.

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Details

  • Title: Telephone (Transmitter and Receiver), Philipp Reis
  • Creator: Philipp Reis, Friedrichsdorf
  • Date: 1863
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