Neon lamps are fun to play with. These old-school indicators were once heavily utilized in many types of equipment for indication purposes but now seem largely relegated to mains voltage indication ...

It’s not difficult to drive an LED indicator from the AC line, but it requires many active and passive components. It also poses safety challenges. EDN and Planet Analog blogger Bill Schweber explains ...

The quest for true randomness has roots in cryptography and is a rabbit hole that gets surprisingly deep with alarmingly ...

When people see an advertising sign in which the letters or designs are formed by slender glowing glass tubes, they may know at once that it is a neon light sign. Although effective as displays, these ...