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* 555 timer | * 555 timer | ||
* | * Potentiometer 100k | ||
* Capacitor 0.1 mf | |||
* Potentiometer 100k | |||
* Photocell | |||
* Transistor TIP 120 | |||
* Diode 1n404 | |||
* Relay | |||
* LED | |||
* Resistor 1k Ohm | |||
* 2 Batteries 9 volt. | |||
'''Testing the wire video ''' | '''Testing the wire video ''' |
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