Parts:
R1____________10K 1/4W Resistor R2___________Photo resistor (any type) R3,R4________100K 1/4W Resistors C1____________10nF 63V Polyester Capacitor C2___________100µF 25V Electrolytic Capacitor D1,D2_______1N4148 75V 150mA Diodes IC1___________4060 14 stage ripple counter and oscillator IC Q1___________BC337 45V 800mA NPN Transistor BZ1__________Piezo sounder (incorporating 3KHz oscillator) SW1__________Miniature SPST slide Switch B1___________3V Battery (2 AA 1.5V Cells in series)
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