Accession Number:

AD0257515

Title:

ELECTRON TUBE RESEARCH AND DEVELOPMENT STUDIES

Descriptive Note:

Corporate Author:

BRIGGS ASSOCIATES INC NORRISTOWN PA

Personal Author(s):

Report Date:

1961-04-01

Pagination or Media Count:

1.0

Abstract:

Several methods were studied for evaluating tube performance qualities. Two new methods were considered in detail 1 shot noise, and 2 dynamic scope test. Data were obtained during 5,000 life test hours on 5816A and 5654 with their commercial equivalents 12AU7 and 6AK5. A group of 5591 tubes a version of 6AK5 were also compared. The tubes used were free from cathode interface impedance and gas, insofar as their known influence upon life resulted. Shot noiseAND PULSE EMISSION ARE INDICATED TO BE FUNDAMENTAL TEST METHODS FOR CATHODE ACTIVITY AND CAPABLE OF ALLOWING TUBE LIFE BURNING TO BE SHORTENED SIGNIFICANTLY other variables being under control. This can create major cost savings in proving tube quality. The dynamic scope test was studied in detail and a clarification of the method and its capabilities is presented. It is felt to be a useful tool for presenting and studying tube characteristics and for estimating integrated gas content. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE