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Siemens, formerly Siemens & Halse, is a large German electronics company that was founded in 1847 by Werner von Siemens and that still exists today. Before, during and after WWII, the company produced a variety of electronic devices, including domestic radios, cipher machines and intercept radios. This section deals with the intercept receivers developed and built by them.

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Siemens R-II (R2) pre-war intercept receiver
Siemens R-IV (R4) wartime intercept receiver

Further information
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Crypto Museum. Last changed: Friday, 21 August 2015 - 20:33 CET.
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