Some Causes and Remedies for Undesirable Variability of Relay Performance Characteristics

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Presented at the Sixth National Conference on Electromagnetic Relays, School of Electrical Engineering Oklahoma State Univ., Stillwater, Okla. Apr. 1958. A discussion is presented of some causes and remedies for undesirable variability of relay performance characteristics within individual relays, and between relays within a lot, and from lot to lot. Discussed are test results, methods of determining the causes for instability (including the replica technique for studying contact contamination), and examples of corrective action taken to decrease the instability. Recommendations are made concerning steps to improve the designs, to stabilize the performance characteristics during preproduction and production fabrication, and to … continued below

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13 pages

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Grear, J. W., Jr. April 1, 1958.

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Presented at the Sixth National Conference on Electromagnetic Relays, School of Electrical Engineering Oklahoma State Univ., Stillwater, Okla. Apr. 1958. A discussion is presented of some causes and remedies for undesirable variability of relay performance characteristics within individual relays, and between relays within a lot, and from lot to lot. Discussed are test results, methods of determining the causes for instability (including the replica technique for studying contact contamination), and examples of corrective action taken to decrease the instability. Recommendations are made concerning steps to improve the designs, to stabilize the performance characteristics during preproduction and production fabrication, and to obtain useful information during final testing. (auth)

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13 pages

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(Issued) June 1958

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  • April 1, 1958

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  • Dec. 9, 2025, 2:04 a.m.

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Grear, J. W., Jr. Some Causes and Remedies for Undesirable Variability of Relay Performance Characteristics, report, April 1, 1958; Albuquerque, New Mexico. (https://digital.library.unt.edu/ark:/67531/metadc1017854/: accessed January 23, 2026), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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