LED VU Meter by IC LM3914


Posted on Feb 6, 2014

This is Circuit LM3914 LED VU Meter. use IC1-LM3914 and Transistor BC109C, By circuit will show level of audio signal(power Music) is dB in six level by LED.


LED VU Meter by IC LM3914
Click here to download the full size of the above Circuit.




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