Lorenz Cipher Chi Wheel Demonstrator (Simplified SZ42 Teaching Model)

Turn a letter into cipher with your own hands, the way the Lorenz machine did it: five wheels of pins, a press of a lever, and a window that shows you the answer. **What it is** This is a simplified teaching model of the Lorenz SZ42 cipher machine, the teleprinter cipher that Bletchley Park called Tunny. It has the five chi wheels only, with their real cam counts of 41, 31, 29, 26 and 23. The psi and motor wheels of the real machine are not included, so this is not a full SZ42 and it will not r…

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