More telephone details
Below, the circuit diagram of the 332 phone as conveniently stuck to the inside of the phone’s base plate. It needs to be drawn out in a less convoluted way so that sense can be more easily made of it! (Soon!)
At the same time as I rescued the phone, I also rescued some bits from the electro-
The unit below (shown on its side) comprises an electro-
The contacts were moved up and down and rotated by pawls operated by electro-
Below shows a close up of the three wiper contacts which moved up and down and clockwise and anticlockwise to make the desired connection.