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. For ...

A 4-pin plastic base with glass T-shaped envelope. Radiation symbol stamped on envelope. Donor’s card reads: “Cold cathode tube made by Western Electric for use in modern [about 1962] telephone ...

Cold cathode fluorescent (CCF) tubes, the light sources used for backlighting the latest liquid crystal display (LCD) modules, require careful engineering to provide the performance and service life ...

Hi, I bought a pair of these lights for PC's which are supposedly cold cathode tubes (in a funky blue colour).<BR>What I am noticing is that when the CPU is fairly busy, the lights flicker a bit. Its ...