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Siemens morse receiver,  1862.
Titel Siemens morse receiver, 1862.
Caption This receiver printed the dots and dashes of morse code onto paper tape. The telegraph's electric current would energise the receiver's twin electromagnets, which in turn attracted an iron bar that operated a system of levers. It was these levers which forced the paper tape against an inking wheel, thus producing the code. A small flow of current made a short line - or 'dot'; a current three times as long made the 'dash'. However, the machine needed trained people to decode the messages., 7018839
Aufnahmedatum 01.01.2009
Bildnachweis Science & Society / FOTOFINDER.COM
Bildname 10212202
Bildgröße 3504px x 2382px, 29,70 cm x 20,20 cm (300 dpi)
Model Release Kein Model Release vorhanden
Property Release Nicht spezifiziert

Land United Kingdom
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Fotofinder.com Bildnummer 7018839 / 3ED7D8B4116133A2