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vu-metru LM339 40 LEDs final test

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Published on Nov 28, 2011

This is the final test of the vu-meter . The PCB was shorted a little bit and i have attached a "volume" pot for adjust level of leds. Its very bright... It lights the whole room when its in operation.This vu-meter was designed by me but was physically made by a friend,OneAnonim.
MUSIC:
Track1 from "in search of sunrise" album by Dj Tiesto 1999. The track name is York-The Reachers Of Civilisation.

And to be clear for everyone : I DON'T HAVE THE SCHEMATIC! THIS WAS A PROTOTYPE MADE FOR A FRIEND IN A WEEKEND DAY WITH MULTIPLE MODIFICATIONS! ARE WE CLEAR?

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