Clive Maxfield in his Max's Hot Beans column in November's EPE magazine had en excellent item about rotary dials off old phones, specifically in Max's case the U.S .Western Electric #7 dial for 500 series telephones., and some of the uses to which they can be put - for example, used in conjunction with an Arduino.
Max told where you can get a Western Electric dial in the US - the Old Phone Shop - and promised after experiment with the Western Electric dial he bought from them that he will report in future Hot Beans columns in EPE on different ways he has found for entering and displaying data.
The restored Western Electric dials are first class. But It struck me that with a bit of know-how rotary dials off old British Telecom phones (and maybe even push-button dials off old BT phones - of which I have a drawful) might equally well be adapted to the same purpose.
So this is to ask if anyone has any examples of doing this that they can share here..
A combination of old phone dial, an Arduino (with delay coding to eliminate contact bounce?) and shift registers and/or counter chips was a combination that immediately sprang to my mind although I haven't yet experimented.