The neon glow lamp tester is a staple in every electronics hobbyist’s lab. Here’s how to build one right in your own home. You may wonder what’s so cool about the “historical” neon glow lamp. For ...

In these times of increased terrorist threats, the possibility of some type of nuclear incident exists. By using a few simple components, it's possible to build a low-cost Geiger detector. Detecting α ...

It’s easy to see why LEDs largely won out over neon bulbs for pilot light applications. But for all the practical utility of LEDs, they’re found largely lacking in at least one regard over their older ...