A cold cathode is a cathode in a gas-filled electron tube that is not heated by a filament. The voltage potential within the tube is sufficient to ionize the gas and cause the current to flow.

In this case, only four of the eight on the board are used to control red, white, blue, and green cold cathode tubes. The video after the break shows the device randomly rotating through different ...

The subject of this tutorial, the Hitachi S-4700 FE-SEM, utilizes a cold cathode field emitter composed of a single crystal of tungsten etched to a fine point. In scanning electron microscopy, ...

STRL is constructing a prototype display using graphite nanofiber (GNF) as its cold cathode material. GNF is a nanometer *1 scale fiber material composed of carbon. Because it easily emits ...

CCFL controllers provide control functions for the direct-drive inverters that are used to operate cold cathode fluorescent lamps (CCFL). A CCFL consists of a phosphor-coated glass cylinder with ...

Sturdy and reliable, the cold-cathode displays found their way into everything from scientific instruments to test equipment, and even some of the earliest computers and the equipment that formed ...