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Blinking LED - For Decorating Purposes
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Components :
1.LED (2)
2.Transistor - BC547 (2)
3.Capacitor - 10UF (2)
4.Resistor - 100k ohm (2)
5.Resistor - 330 ohm (2)

Input Supply : 5 - 9 V DC

Circuit Diagram :

   

Concept:

Switching principle of transistors
Charging and Discharging principle from Capacitors.

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