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Audio VU/Sound Level Meter with LM339

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Audio VU/Sound Level Meter with LM339
Audio VU/Sound Level Meter with LM339
₹1,440 ₹1,440

This is an “Audio VU Meter” or “Sound Level Meter”, it is a general-purpose bar-graph Audio VU meter designed for fun projects. All you need is to hook up one wire to the output of the audio amplifier’s speaker pin along with GND and see the magic. The response of the circuit is very fast and it provides beautiful visual representation from audio input signal.


 

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