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LED VU Meter with LM3916 - Electronics-Lab.com
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Diymore 5v Rgb Led Level Indicator Vu Meter Amplifier Board Mcu Display Pattern Dual Channel 24 Led Vu Level Indicator Meter - Integrated Circuits - AliExpress
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LED VU Meter circuits using transistors, 5 to 20, 40 LED | ElecCircuit.com
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VU Meter - TechSaw sound Reactive LED VU meter LED
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