This is simple password circuit that can run any electronic device when a true password insert <br /><br />Parts Needed:-<br />1:- I.C lm4017<br />2:- 4-pieces IN4148 Zener Diode<br />3:- 1-Piece 1k Resistor<br />4:- 1-Piece 2n3904 or BD140 Transistor<br />5:- 2-Piece 47K Resistor<br />6:- 1-Piece 100uf 16v Capacitor
