出典:Wiktionary
出典:『Wiktionary』 (2026/04/03 00:25 UTC 版)
出典:『Wiktionary』 (2024/10/25 03:51 UTC 版)
出典:Wikipedia
出典:『Wikipedia』 (2011/07/10 08:52 UTC 版)
A cold cathode is an element used within nixie tubes, gas discharge lamps, discharge tubes, and some types of vacuum tube. The term cold cathode refers to the fact that the cathode is not independently heated, but may still operate at elevated temperature.