- 2 momentary pushbutton switches 1 rotary switch, 5+ positions 10 LEDs 3 sockets Potentiometers: One potentiometer per step, to indicate current step. (10 - CLOCK in - glide in (sleeve and normal both GND 6x Sockets, 2pin: - all step switches (all go to same bus run/stop 2x Pushbutton switches, all 2pin: - all step switches (all go to same bus run/stop 2x Pushbutton switches, all 2pin.