Sound Level Meter

jacky April 11, 2011 4 Comments
Sound Level Meter Circuit Description This is a one chip sound level meter that can be use for displaying sound level of an amplifier or simply the sound level from a microphone.The heart of the circuit is  IC LM...
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Volume Control Circuit

jacky April 27, 2011 3 Comments
Digital Volume Control Circuit Description This is the circuit diagram of a digital volume controller for any sort of audio amplifiers or almost any circuit where a mechanical potentiometer is there(conditions apply). Simple and low cost, the heart of...
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