Engineeringness on MSN

Transistors Explained: Switching and Amplification Basics

This video explains what transistors are and how they function as electronic switches and amplifiers. As a core component of ...
Hackaday

All About PNP Transistors

In the early days, PNP bipolar transistors were common, but the bulk of circuits you see today use NPN transistors. As [Aaron Danner] points out, many people think PNP transistors are “backward” but ...