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.

1 comment:

  1. Very fine project;my question is if possible to drive a high light led diode.My e-mail is
    Thank you and greetings from Italy.