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