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 ...

Cold cathode light is used mainly for CCFL backlight or edge-lighting of liquid crystal flat panel displays (LCFPD). With a CCFL controller, the lamp filament does not require preheating and the ...

Jared Bouck details the removal of the dead cold cathode and replacing it with a new tube and inverter. Not quite as dangerous as opening a CRT, but you still need to be careful with the mercury ...