Accession Number : AD0491919

Title :   OXIDE CATHODE AND PRIMARY GRID EMISSION STUDIES.

Descriptive Note : Monthly rept. no. 14, Jun 48,

Corporate Author : WESTINGHOUSE ELECTRIC CORP BLOOMFIELD NJ LAMP DIV

Personal Author(s) : McNall, J. W. ; Ivey, H. F. ; Young, R. G.

Report Date : 06 JUL 1948

Pagination or Media Count : 8

Abstract : In observations on electrical breakdown in 715 type tubes it is necessary to delay the desired signal of grid current, etc. with a delay line for a sufficiently long period of time so that it can be seen and photographed on an oscilloscope screen. The type of wave shape distortion introduced by the delay line was considered undesirable. A new redesigned delay line was built, tested, and found not to have this type of distortion. Some oscillograms of the various electrode currents under steady state and arcing conditions using the new delay line are included. Work on identification by x-ray diffraction of the material evaporated from an oxide cathode has been continued. The experimental difficulties have been such that no new information has been gained. (Author)

Descriptors :   (*OXIDE CATHODES, THERMIONIC EMISSION), DELAY LINES, X RAY DIFFRACTION, ELECTRIC DISCHARGES, ELECTRIC ARCS, EVAPORATION, ANODES(ELECTRON TUBES), INDUCTANCE, MOLYBDENUM, COMPARATORS, SYNCHRONIZATION(ELECTRONICS).

Distribution Statement : APPROVED FOR PUBLIC RELEASE