Why was the transistor such a big deal? Until the late 1940s, electronics relied on vacuum tubes, glass bulbs that used a delicate filament inside a vacuum to moderate the flow of electrons. Vacuum ...

In this article, I'll show you how to make a simple touch-triggered switch. This is very useful for various electronic projects, from a simple bedside light to a flat panel touch keyboard. The circuit ...

The history of the transistor and similar types. How transistors made an impact on the world. How grudges eventually subside. Transistors are simple electronic devices that boost or switch electrical ...

75 years ago this month, research scientists working at Bell Labs first created, then unveiled to the world a new device—the point contact transistor. Some call it the greatest invention of the 20th ...

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