Abstract

The complexity of manufacturing electronic tubes is such that professional groups normally associated with design and laboratory activities are called upon to work in the factory. These groups contribute considerably to the control of material assembly, test, and the outgoing quality of the product. In this industry many variables exist and because none of the tube parts can be tested electrically until the tube is completed, a system of “statistical quality control” is in order. This paper illustrates improvements which may be accomplished through special tests on tubes in the course of production, followed by statistical analysis of the results.

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