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How a transistor works
About this video
Ben Eater gives a detailed look at how an NPN bipolar junction transistor works and what it does. It is an eleven-minute explanation aimed at building real understanding of the device.
Why it appears in the archive
HN commenters prefer it over other transistor explanations as an enlightening starting point that leads into building logic gates and a CPU.
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From the Hacker News discussion
Great explanation — although only a week or so ago I wouldn't have understood a lot of it. Knowing how transistors work helps a lot: [VIDEO]
Read original comment ↗This is a good explanation, but I prefer the one by Ben Eater: How semiconductor works: [LINK] How a transistor works: [VIDEO]
Read original comment ↗As someone who is not an electrical engineer, I found Ben Eater's videos on how semiconductors work and how transistors work interesting and enlightening. How semiconductors work: [LINK] How a transistor works: [VIDEO]
Read original comment ↗Aside from his basic 8-bit CPU, Ben Eater goes into how transistors work too: [VIDEO] . Once you've got transistors, his videos walk you through making gates. Once you've got gates, he switches to the 74xx series and builds a CPU.
Read original comment ↗