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		                        | National Stock Number:
 5960-00-922-7940
 
 Federal Supply Class:
 5960
 
 National Item Identification Number:
 009227940
 
 Description:
 ELECTRON TUBE
 
 Detail:
 An inclosure, including two or more electrodes, in which a flow of electrons may occur through a vacuum or a contained gas. The electronic conduction takes place either by means of electrons emitted from a cathode or by ionization of the contained gas. Includes phototubes (photoemissive type only), Geiger-Mueller tubes, traveling wave tubes, cathode ray tubes and microwave tubes (Klystron, magnetron, or the like). Excludes items whose primary purpose is to produce light energy. Also excludes PHOTOELECTRIC CELL; and SEMICONDUCTOR DEVICE (as modified).
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 Manufacturer Information:
 
 | 12K5 | 31327 | PENTA FINANCIAL, INC. |  | 12K5 | 80131 | ELECTRONIC INDUSTRIES ASSOCIATION |  | 12K5 | 82219 | PHILIPS ECG INC DIV OF NORTH AMERICAN PHILIPS CORP | 
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 Techincal Specification:
 
 | NONDEFINITIVE SPEC/STD DATA | 12K5 TYPE |  | TUBE TYPE | TETRODE | 
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