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Mixer cipher machine - wanted item

The TCE-160 was an online/offline cipher machine for telegraphy signals (telex), developed by Standard Telefon og Kabelfabrik A/S (STK) in Norway in 1963. It is the transistorized version of the earlier valve-based ETCRRM (1955). The mechanical construction shows great resemblance to the SELMA OKA-150 OTT-machine of 1960. These types of machines are known as mixers.

The key tape reel is mounted at the rear left and fed through a paper tape reader at the front left. The image on the right shows a typical TCE-160 with a single Creed paper tape reader on its top surface. The image clearly shows that provisions are present for a second tape reader, allowing the machine to be used off-line.

For the generation of suitable random key-tapes, STK had developed the special KTP-3 key-tape production machine.

If you have any further information about this machine, please contact us.

  1. Frode Weirud, Crypto Historian, Personal correspondence
    Crypto Museum, June 2012.

  2. Norwegian National Security Authority (NSM), Årsmelding 2008
    NSM Annual Report 2008 (Norwegian). Noen kryptosuksesser. p. 15.

  3. Leif Nilsen, NISnet Kick-off
    Thales Norway AS, PowerPoint presentation. 10 October 2007. Retrieved June 2012.
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Crypto Museum. Created: Saturday 16 June 2012. Last changed: Saturday, 24 February 2018 - 20:53 CET.
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