alpha pulse switches........
morning chaps.......
these are the biz for use with joystick controllers or keyboard emulators to give repeated inputs. very clever little switch which only contacts in the direction of rotation once each detente. sort of give you an encoder type input via a any joystick or keyboard card.
here's the mouser catalogue page http://www.mouser.com/catalog/635/1611.pdf
they are item B. mouser part no: 105-SR10030F-PS
here's the data sheet. http://www.mouser.com/catalog/specsheets/TW-700079.pdf
hope that helps you out lads....
rgds from wales...... ian