Telegraph transmitter and receiver,1914

Numéro d’image : 11594345
Telegraph transmitter and receiver,1914
Telegraph transmitter and receiver. This apparatus was designed by the French inventor Auguste Jean-Baptiste Tauleigne (1870-1926). At right is the relay where the message is tapped out. Headphones are at centre. At left is the recording part of the apparatus. Morse code was developed from 1836 as a means of encoding messages for transmission using telegraphy. The dots and dashes could be printed onto a strip of paper,as seen here. Photograph published in 'La Telegraphie Sans Fil' (Wireless Telegraphy,1914),by the French geophysicist Alphonse Berget (1860-1934)
Licence : Droits gérés
Crédit: Science Photo Library
Taille de l’image : 6786 px × 3248 px
Model Release : Non requis
Property Release : Non requis
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