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Electronic Basics #21: OpAmp (Operational Amplifier)
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2N2222 NPN Transistor as a switch - Arduino example with LED Flash
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The Best Protection for your Circuits? eFuse! Here is why they are awesome! EB#48
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Building the simplest, best sounding, yet most inefficient Audio Amp! || Class A Audio Amp Tutorial
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Aprenda Eletrônica Em Minutos Com Esse Incrível Circuito!
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VÁLVULA vs TRANSISTOR: A REAL DIFERENÇA (VEJA NA PRÁTICA!)
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Tutorial: How to design a transistor circuit that controls low-power devices
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