NASA NTRS · 19730000199
SRC seal testing
Abstract
Small venthole drilled in semisealed silicon-controlled rectifier (SCR) cavity eliminates entrapped helium. Although these devices show slightly greater leak than those before lead installation, it is now possible to distinguish device with good hermetic seal from defective one.
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Miller, E. D., Kohout, G. J.. 1973-08-01. SRC seal testing. https://ntrs.nasa.gov/citations/19730000199
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