Accession Number:

AD0869174

Title:

Tube Failure Mechanisms.

Descriptive Note:

Final rept. 1 May 68-30 Sep 69,

Corporate Author:

RAYTHEON CO WALTHAM MA MICROWAVE AND POWER TUBE DIV

Personal Author(s):

• Bouchard, Kenneth G.
• Lesensky, Leonard
• Weihrauch, Paul

Report Date:

1970-03-25

Pagination or Media Count:

98.0

Abstract:

The investigation focused attention on 1 high voltage breakdown in vacuum as it occurs across vacuum gaps and along insulating surfaces and 2 surface studies of metal-oxide composite cathodes, as exemplified by the tungsten-thoria W-ThO2 cermet cathode, pertaining to the chemical and topographical changes resulting from heat and electron bombardment. Author

Descriptors:

• (*ELECTRON TUBES
• FAILURE(ELECTRONICS))
• CATHODES(ELECTRON TUBES)
• CERMETS
• COPPER
• SURFACE PROPERTIES
• ELECTRIC DISCHARGES
• DIFFUSION
• PLATINUM
• TUNGSTEN
• TITANIUM ALLOYS

Subject Categories:

• Electrical and Electronic Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE