cold cathode

 

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cold cathode

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• cold-cathode

cold cathode (plural cold cathodes)

1. (electronics) A type of cathode that does not use a heating element to produce emission of cathode rays (electrons), beyond base thermionic emission (usually by field electron emission, secondary emission, photoelectric emission)
   • 1962 June, “The Eastern Region completes the Colchester scheme”, in Modern Railways, page 412:

     On the open portions of the platforms the loudspeakers are installed on the cold cathode lighting columns.

• cathode

• hot cathode

• cold-cathode fluorescent lamp (“CCFL”)
• cold-cathode lamp
• cold-cathode light
• cold-cathode tube