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.

Finally, cold cathode lights can be used for much more than illuminating the inside of your computer or making your whip look like it can hover. [James] discovered if he varied the voltage going ...

The Hereford Bull overlooking I-35 has been largely cut off from his cattle industry legacy, 70 years after he was dedicated ...

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, ...

There are two types available: hot cathode and cold cathode. The main difference between the two types is their method of electron production. Cold cathode devices draw the electrons from the ...

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 ...

Some CT tubes are grid controlled for pulsed radiations to reduce the radiation dose. Field emission X-ray tubes (also called cold cathode tubes) In this style, in place of electron emission by ...

Now, degradation means that some ions become stuck on the cathode or the anode as the battery charges and ... For example, we know for sure that cold weather decreases the life of batteries. Also, the ...

Very different news has emerged from two of New Zealand’s dairy majors, Synlait (ASX:SM1) and Fonterra (ASX:FSF).