https://youtu.be/KqIOGGjPFQU https://youtu.be/KqIOGGjPFQU I find this to be the best concise explanation of the PN junction, which is enough to figure out how

https://youtu.be/KqIOGGjPFQU https://youtu.be/KqIOGGjPFQU I find this to be the best concise explanation of the PN junction, which is enough to figure out how a transistor works on one’s own.