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C. Lorenz AG – Standard Electric Lorenz (SEL)

C. Lorenz AG, commonly abbreviated to Lorenz, was a German manufacturer of electric and electronic equipment, established around 1870 by Carl Lorenz (1844-1889) in Berlin (Germany), initially as Telegraphenbauanstalt, Fabrik für elektrisches Licht, elektrische Eisenbahnen, Kunst und Industrie, Berlin 1 and later simply as C. Lorenz Aktiengesellschaft or C. Lorenz AG.

Throughout World War II, Lorenz remained under German control, although it was legally a fully American company. It supplied equipment to the suppresive German Nazi Government, such as recording devices for telephone surveillance and covert recording of interogations, and the cipher machine used by the German High Command: the SZ-40/42, also known as the Lorenz Machine.

 More about Lorenz

  1. English: Telegraph construction company, factory for electric light, electric railways, art and industry.

Lorenz cipher machines
Schlüsselzusatz (cipher attachment) for teletypewriters used by the German High Command during WWII
Lorenz One-Time Tape cipher machine (mixer) Mi-544
  • Lorenz
  • C. Lorenz AG
  • Schaub Lorenz
  • Standard Electric Lorenz AG
  • SEL
  1. Wikipedia, C. Lorenz
    Retrieved January 2018.

  2. Radio Museum and contributors, History of the manufacturer Lorenz, Berlin
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© Crypto Museum. Created: Monday 08 January 2018. Last changed: Tuesday, 25 January 2022 - 23:55 CET.
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