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BackBut many external clock sources cycle between 0v and 5v or even much less. - One SPDT switch to disable clock (pause). - SPST switch to disable reset (run once). - Momentary-normal-off pushbutton to manually reset. LEDs: One per step, to set output voltages. (10 - One potentiometer for internal clock rate (if onboard clock is used // 11 SPDT switches (many used as SPST - 2 pin Molex connector 2.54 mm 2x5