A STUDY OF ELECTRON TUBE DETERIORATION UTILIZING KINETIC THEORY
Abstract
Life test data for 5814A twin triodes and 6005 sentodes are analyzed for kinetic significance with cathode temperature as a variable. Where plate current and transconductance values follow a smooth pattern of deterioration the application of the kinetic concept appears valid. Where data is scattered, the prediction of deterioration at rated cathode temperature from that at higher temperatures is such that conservative life prediction is achieved. Acceleration of cathode deterioration by experimental determination of an activation energy is shown to be successful where careful life testing techniques are employed using sufficient sample sizes. A description of the methods and results of a computer program to analyze life data by use of the Child-Langmuir equation is given. Significant improvements in receiving tube life test techniques and results can be achieved with the proper application of kinetics and the computer procedure. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1962
- Accession Number
- AD0270090
Entities
People
- E.r. Schrader
- V. Raag