💡 Simple BD139 Transistor Circuit | Easy DIY Electronics Project | #Shorts
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💡 Simple BD139 Transistor Circuit | Easy DIY Electronics Project | #Shorts
In this short video, I’m showing how to build a simple BD139 transistor circuit using basic components — BD139 transistor, 5mm LED, two resistors, and a 5V power supply. It’s a perfect mini project to understand how a transistor works as a switch or amplifier. 🔹 Components Used: BD139 Transistor, 5mm LED, 2 Resistors, 5V Power Supply ...
1 month ago
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