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STK
Standard Telefon og Kabelfabrik

Standard Telefon og Kabelfabrik (Standard Telephone and Cable Factory), abbreviated STK, was a tele­phone, electronics and cable company in Oslo (Norway). Commonly referred to as Stan­dard, it was establised in 1915 and was later owned by ITT, then Alcatel (Lucent) and finally Thales.

➤ More about STK (history)
➤ More about Thales
STK logo. Recreated by Crypto Museum.

STK cipher machines on this website
ETCRRM mixer machine used on the Washing-Moscow hotline
Key-tape puncher for creating random tapes
SELMA OKA-150, telegraphy cipher machine
TCE-160 mixer machine. Transistorized version of the ETCRRM.
Cryptel 240, telegraphy cipher machine
Cryptel 245, telegraphy cipher machine
TCE-300, bulk encryption system
TCE-500, secrure crypto telephone
RACE (KL-51)
Known STK cipher machines
Further information
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