21. Cold cathode lamps are generally less efficient than thermionic emission lamps because the cathode fall voltage is much higher.22. A "'Nixie tube "'( ), or cold cathode display, is an displaying numerals or other information using glow discharge. 23. As for the inverter circuit of a cold cathode fluorescent lamp, a resonance type circuit has been widely used. 24. Hot cathodes typically achieve much higher power density than cold cathodes , emitting significantly more electrons from the same surface area. 25. I am planning to make a smallish breadboard-mounted mechanism which can be used to power a cold cathode florescent backlight. 26. Cold cathodes rely on field electron emission or secondary electron emission from positive ion bombardment and do not require heating.27. The first electronic ignition ( a cold cathode type ) was tested in 1948 by hemis in 1963 and 1964. 28. The principle behind cold cathode version is the same, except that electrons are produced in the discharge of a high voltage. 29. The Cold Cathode Gauge Experiment ( CCGE ) which was part of the ALSEP on Apollo 13 was never flown again. 30. A "'CCFL inverter "'is an electrical inverter that supplies alternating current power to a cold cathode fluorescent lamp ( CCFL ).
