NASA NTRS · 19680028529
Thermionic cathode evaluation study Annual report, 1 Jan. 1967 - 31 Mar. 1968
Abstract
Thermionic cathode dc life capabilities
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Hill, F. T.. 1968-04-12. Thermionic cathode evaluation study Annual report, 1 Jan. 1967 - 31 Mar. 1968. https://ntrs.nasa.gov/citations/19680028529
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