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amplifier - Why is my sound level LEDs bar indicator not working

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Sound Level Meter Circuit

Sound Level Meter Circuit

LED Audio Level (VU) Indicator and Alarm: The Dot Turns to Bar When The

LED Audio Level (VU) Indicator and Alarm: The Dot Turns to Bar When The

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LED Sound level display circuit by using IC LM3915 | CircuitsTune

LED Sound level display circuit by using IC LM3915 | CircuitsTune

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