dispenser cathode - definizione. Che cos'è dispenser cathode
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Cosa (chi) è dispenser cathode - definizione

TYPE OF ELECTRODE AND PART OF COLD CATHODE FLUORESCENT LAMP
Cold Cathode; Ccfl; Cold cathode ionization gauge; Cold-cathode; Cold Cathodes; Cold cathode fluorescent light
  • Cold-cathode fluorescent lamp backlight
  • A standard computer case fitted with blue and green cold-cathode tubes
  • A set of cold cathode discharge tubes

CCFL         
Cold Cathode Fluorescent Lamp (Reference: LCD)
Cold cathode         
A cold cathode, Cold cathode discharge tube is a cathode that is not electrically heated by a filament.A negatively charged electrode emits electrons or is the positively charged terminal.
cold cathode         
¦ noun Electronics a cathode that emits electrons without being heated.

Wikipedia

Cold cathode

A cold cathode is a cathode that is not electrically heated by a filament. A cathode may be considered "cold" if it emits more electrons than can be supplied by thermionic emission alone. It is used in gas-discharge lamps, such as neon lamps, discharge tubes, and some types of vacuum tube. The other type of cathode is a hot cathode, which is heated by electric current passing through a filament. A cold cathode does not necessarily operate at a low temperature: it is often heated to its operating temperature by other methods, such as the current passing from the cathode into the gas.