PRODUCTION ENGINEERING MEASURE FOR SUBMINIATURE, TRANSISTOR TYPE POTENTIOMETERS.
Abstract
The 1800 units required for Preproduction Testing were submitted to the test facilities and testing was completed. No failures occurred in dielectric strength, effect of soldering, high frequency vibration, temperature coefficient, tempera ture cycling, low temperature exposure, and shaft seal. All visual and mechanical inspections were satisfactory except the stop torque. Controls exceeding the maximum allowable change in resistance were noted only on rotational life and moisture resistance tests. The failures on rotational life were caused by mechanical defects in the controls. The 5K ohm and 25K ohm controls passed the 30 cycle moisture resistance test with no failures. The 2400 units for the 10,000-hour load life test have completed 500 hours of testing with no failures. Two groups completed 1,000 hours of testing with no failures. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 31, 1963
- Accession Number
- AD0434065
Entities
People
- A. A. Grunwald
- C. L. Holmes