Both of these bulb types lose light output over time; thus, even if they’re functional, they aren’t performing like new. When it comes time to replace them, why go with the same lighting ...

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 ...

There are plenty of SPI interface screens on the market, but few of them have the charm of the good old Nixie tube. [Tony] decided to whip up a simple three-Nixie module that could be addressed ...