COMPONENTS LIST

4001 quad NOR gate 1

4070 quad XOR gate 1

light-emitting diodes 2

4-position DIP switches 2

1N914 “switching” diodes 4

10 kΩ resistors 11

470 Ω resistors 2

Pushbutton switch (normally open) 1

volt batteries 2

74192 Counter 1

CA 7 segment display 1

CD5411 driver 1

Relay 5v 1

Buzzer 1

2 micro farad Capacitor 1

555 Timer 2

Transistor (BC5427) 1

IC Base 8

PCB 1

NOT Gate (IC7404) 1