Parts:
R1,R3____22K 1/4W Resistor R2________2M2 1/4W Resistor R4________1M 1/4W Resistor R5,R7,R8__4K7 1/4W Resistor
R6_______47R 1/4W Resistor R9________1K 1/4W Resistor
C1_______47nF 63V Polyester Capacitor C2______100nF 63V Polyester Capacitor C3_______10nF 63V Polyester Capacitor C4_______10µF 25V Electrolytic Capacitor
D1_______Common-cathode 7-segment LED mini-display (Hundreds meters) D2_______Common-cathode 7-segment LED mini-display (Kilometers) IC1______4093 Quad 2 input Schmitt NAND Gate IC IC2______4024 7 stage ripple counter IC
IC3,IC4__4026 Decade counter with decoded 7-segment display outputs IC Q1,Q2___BC327 45V 800mA PNP Transistors P1_______SPST Pushbutton (Reset) P2_______SPST Pushbutton (Display)
SW1______SPST Mercury Switch, called also Tilt Switch SW2______SPST Slider Switch (Sound on-off) SW3______SPST Slider Switch (Power on-off) BZ_______Piezo sounder
B1_______3V Battery (2 AA 1.5V Cells in series) -----------------------------------------------------
