1 How Does a Transistor Work?
A short, slightly silly explanation of how transistors work at the semiconductor level, often linked for anyone who has not yet grasped the basics.
Topic
bjt
15 videos. Ranked by independent recommendations, not by views.
2 How a transistor works
Ben Eater's explanation of how a bipolar transistor works, repeatedly offered as a very helpful way to grasp the basics.
3 TSP #23 - Tutorial on the Design and Characterization of Class-B and AB Amplifiers
Signal Path tutorial on class B and class AB output stages, recommended for learning how an output stage drives a speaker and why the bias diodes are there.
4 EEVblog #748 - How Do Transistors Work?
Dave Jones' EEVblog explainer on how bipolar transistors actually work at the junction level, often handed to beginners puzzled by the basic NPN picture.
5 Electronic Basics #22: Transistor (BJT) as a Switch
A GreatScott tutorial on using a bipolar transistor as a switch, recommended when a microcontroller pin needs to drive a buzzer, fan or other load.
6 New Analog Circuit Design (By Prof. Ali Hajimiri, Caltech)
Ali Hajimiri's lecture series on analogue circuit design, highly rated for building intuition about amplifier design and semiconductor physics including BJTs.
Hidden gem7 #67: Basics of Common Emitter Amplifier Gain and Frequency Response with Measurements
A w2aew tutorial on how a common emitter BJT amplifier's gain and frequency response are set by its external components, backed by bench measurements.
8 What is a transistor? How does a transistor work? Part 1
Explains how to use a transistor in practice, as a resistor controlled by the base rather than through semiconductor physics; liked by learners put off by textbooks.
9 SparkFun According to Pete 7-5-11: Diodes and Transistors
SparkFun's Pete gives a plain overview of how bipolar transistors work and how to use them as switches, paired with his MOSFET episode.
10 Transistors Explained - How transistors work
A transistor explainer that gets recommended as a starting point for how components work, though one questioner found its treatment of BJT saturation stopped at the surface.
11 106N. Bipolar Junction Transistor, basic operation, current flow properties, doping Profile
A Caltech lecture from Ali Hajimiri, praised for explaining why a bipolar transistor is really voltage controlled rather than base current controlled.
Hidden gem12 BJT - Voltage Divider Bias Circuit
Recommended for working through BJT voltage divider bias calculations, including replacing the base network with its Thevenin equivalent before analysing an amplifier.
13 How to test transistors with ANY multimeter!
Shown as a quick way to check whether a bipolar transistor still works using an ordinary multimeter's resistance range.
14 EECE 251 - BJT Design of the Bias Circuit
A clear tutorial on biasing a common emitter BJT amplifier and picking collector and emitter resistors, cited by learners working through bias point and resistor ratio questions.
15 Transistors - Field Effect and Bipolar Transistors: MOSFETS and BJTs
A visual explanation of how BJT and FET transistors operate and differ, linked by a few people as a helpful way to build intuition about them.
