How to make 16 LED Single-Channel VU Meter no IC and no Transistor

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VU meter only with transistor | Without any IC

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How to Make a VU Meter Without IC and Transistor | Reactive Lights Circuit

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LED Dimmer controller design - Electronics engineering pulse width modulation

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Breadboarding tips

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Turn a DVD ROM Old Into a Stereo Bluetooth Music Player

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How To Make LED VU Meter with Transistor BC547 Without IC On The PCB Using LED Controller With Pot

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How INDUCTOR's work & How to make your own

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