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Magnetic plate telegraphone with user

American Telegraphone Co. (1903 - 1917)1909

Museum for Communication Frankfurt, Museum Foundation Post and Telecommunication

Museum for Communication Frankfurt, Museum Foundation Post and Telecommunication
Frankfurt am Main, Germany

Peder Oluf Pedersen, a close associate of Valdemar Poulsen, developed the idea of a rotating steel plate for voice recording instead of steel wire in 1901. The device was improved further at the American Telegraphone Co., whereby a large steel plate was added, giving it a recording capacity of 4 minutes. However, the magnetic disk recorder was virtually unsaleable: it cost $300 while a phonograph with the same playing time and a louder volume was available for only $70.

Details

  • Title: Magnetic plate telegraphone with user
  • Creator: American Telegraphone Co. (1903 - 1917)
  • Date Created: 1909
  • Location Created: Washington, DC, USA
  • Rights: © Museumsstiftung Post und Telekommunikation

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