photo cell

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Mar 13, 2006, 10:28 PM

screem

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Join Date: Feb 2006

Posts: 4

photo cell

hi all
i need to know how i can build a circuit to turn on a led using photo cell resistor, 10k resistor, transistor, 12v voltage resource .
when the light focus to the photocell the led in the circuit turns on.
thank you for your help .

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