Mar 7, 2011

LED VU meter with trainsistor

Home made by Me.
I am not an engineer but i used to learn a basic electron at hight school. this is a big thing i have done 9 Led vu meter with transistor BC557 and BC547. i spend lower than 5$ for its components. i go to buy it at Orusey Market in Phnom Penh, Cambodia.



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