SECRECY SCRAMBLER SET No 8, 1971

The Secrecy Set No8 distorts the signal to an unrecognisable mush, the circuit is then reversed at the receiving end.
It would not be difficult to UN-distort the message that is sent down the line, if you had the expertise. This machine is a Transistorised version of the valve equivalent used after the war, and supplied by the British Post Office for commercial use only.

The Manufacturer E.M.T. is a mystery, it is a possibility that it could be EMI who made it, the last letter 'T' being a code, as in War time Utility sets, that used a letter codes to indicate the maker. Off course as this is a Secrecy set it would not be good practice to divulge the maker.

This item can be demonstrated.

Your comments:

• The unit shown was made in 1971 and then refurbished by the Post Office on the date shown on the white label.
  .......... bob freshwater, forest of dean. UK, 30th of October 2025
  
  

A0753