.jpg)
.jpg)
Description
Didn't find what you're looking for?
Post your buying leads to let suppliers contact you directly or
contact our customer service specialist
for help!
Cold cathodes sometimes have rare earth coating on them for enhancing electron emission. Some types contain a source of beta radiation to start ionization of the gas that fills the tube. In such a tube, glow discharge around the cathode is usually minimized, in favor of a so called positive column, filling the tube. The best example is the humble neon lamp. Another good example is Nixie tubes. Nixie tubes too are cold cathode neon displays that also happen to be in-line, but not in-plane display devices.
Cold cathodes sometimes have rare earth coating on them for enhancing electron emission. Some types contain a source of beta radiation to start ionization of the gas that fills the tube. In such a tube, glow discharge around the cathode is usually minimized, in favor of a so called positive column, filling the tube. The best example is the humble neon lamp. Another good example is Nixie tubes. Nixie tubes too are cold cathode neon displays that also happen to be in-line, but not in-plane display devices.
.jpg)
.jpg)
.jpg)
.jpg)
.jpg)
.jpg)
.jpg)
.jpg)
