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0:26
YouTube
Code Sketchers
BC547 Transistor LED Control 🔥 Full Explanation for Beginners | 3.7V & 9V Battery
In this video, I built a simple and powerful transistor switch circuit using the BC547 NPN transistor, LED, push button, and a battery (3.7V & 9V). This tutorial is perfect for beginners who want to understand how a transistor works as a switch.
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