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NPN LED Driver - Why an extra resistor to ground at the Base? | Electronics Forum (Circuits, Projects and Microcontrollers)
GitHub - thanadolps/Basic-Console-Base-Resistor-Sum-Calculator: A Basic Console-Based Resistor-sum Calculator in C++
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Electrical Engineering: Ch 3: Circuit Analysis (31 of 37) NPN Transistor: Voltage & Base Current - YouTube
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