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semaforo led traffic light bread board



semaforo led – led traffic light :

1 x NE555
1 x 74LS121
3 x led (R G Y)
1 x 220µF 25V
1 x 1000µF 25V
1 x 10µF 25V
3 x 220Ohm
2 x 15KOhm
1 x 330KOhm
trimmer 100KOhm


Post time: Jun-18-2017
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