81 led chaser using double ic 4017

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    81 LED CHASER USING DOUBLE IC 4017

    Parts list: IC555 IC4017(2pcs) 2N3904 or any other NPN(9pcs) 10k resistor(10pcs) 470 ohm resistor 3.3k resistor LED(81pcs) Capacitor 1uF 10v 100k potentiometer Diode 1N4007 1.5v AA battery(4pcs) Battery holder Prototype Breadboard
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