How Do Transistors Work? At its core, a transistor is an electronic gatekeeper. It controls the flow of electric current through a semiconductor material. Most transistors have three terminals, often ...

In this lesson, students build two circuits and explore how transistors function. When Bell Labs introduced the transistor in June of 1948, a spokesman proudly announced "This cylindrical object . . .

Memory chips also use transistors: Static RAM (SRAM) uses a few transistors to store one bit in a flip-flop arrangement, while dynamic RAM (DRAM) uses one transistor plus a tiny capacitor to store a ...