Subminiature tubes-prediction of failure and life testing under normal and overload conditions
Loading...
Authors
McNeal, Horace Phillips
Subjects
Advisors
Lebacqa, J. V.
Date of Issue
1949-05
Date
May 1949
Publisher
Johns Hopkins University
Language
Abstract
The purpose of this investigation is threefold. First, to make static tests on subminiature tubes, collecting as much data as possible on their behavior at different values of heater voltage and at different values of plate voltage; and to compare uniformity of the same type tube made by two different manufacturers. Second, to make dynamic tests on the same tubes in a circuit which simulates their use in an actual amplifier. The purpose of these tests is to determine tube life, or changes in tube characteristics, under normal load and overload conditions. Third, an attempt to correlate the results of the static tests with the results of the dynamic tests and discover some method by which static testing may be used to accurately predict which tubes may fail under overload; or to prove that no simple criterion exists for such prediction.
Type
Thesis
Description
This thesis document was issued under the authority of another institution, not NPS. At the time it was written, a copy was added to the NPS Library collection for reasons not now known. It has been included in the digital archive for its historical value to NPS. Not believed to be a CIVINS (Civilian Institutions) title.
Series/Report No
Department
Engineering
Organization
Johns Hopkins University