Accession Number : AD0283919

Title :   Quarterly Interim Engineering Report Number 8, 1 April-30 June 1962,

Corporate Author : SYLVANIA ELECTRIC PRODUCTS INC EMPORIUM PA

Personal Author(s) : BISSO,ROBERT J. ; SNYDER,WILLIAM S.

Report Date : 30 JUN 1962

Pagination or Media Count : 1

Abstract : With the completion of pilot production and analysi of static data obtained on 10 lots on both SN-2967A and SN-2968A, the primary objective was to resolve the problem of catastrophic failures occurring during life. It was determined that the failures were being caused primarily by an unbalance in plate current between sections. To measur this unbalanced condition, the plate temperature of the tubes involved were measured as being a function of plate current. Initial life test results indicate that cata trophic failures are occurring in greater number in groups of tubes which exhibit the greater temperature unbalance. Data will be analyzed to determine if the tubes can be tested to a max delta T which will remove potential failures from life test samples. (Author)

Descriptors :   *CATHODE FOLLOWERS, *MINIATURE ELECTRON TUBES, *SUBMINIATURE ELECTRON TUBES, DESIGN, ELECTRIC CURRENTS, ELECTRON TUBES, FAILURE (MECHANICS), LIFE EXPECTANCY, OSCILLATORS, TEMPERATURE, TESTS, VIDEO AMPLIFIERS

Distribution Statement : APPROVED FOR PUBLIC RELEASE