Alarm 3V Mudah

SKEMA

 LAYOUT

 CIRCUIT

Peralatan

Resistor 

R1 33k
R2 330Ohms
R3 330Ohms
VR 3V

Capacitor
C1 47pF
C2 100uF

Diodes
D IN4002

Transistor
TR 1 C9014
TR 2 C9012

Speaker
8 Ohms Speaker

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