Zuse Z1-Z2, Z4 type memory cell demonstration set

This is my interpretation of the operation of a single bit of memory as used in the Zuse Z1 and Z2 programmable calculators, and later for the Z4 computer. Most information is from pages 218-221 in the book described below. The original Z1 is designed and build in 1936-1941. The replica/redesign is build by Konrad Zuse in 1989.

The original described parts are simple metal strips and a pin (red, blue, yellow and middle gray parts), I added the guides and end stops. In the actual machine the p