Machine Operator in Electron Tube Research Laboratory | University of Illinois Archives
Machine Operator in Electron Tube Research Laboratory
Image from Electron Tube Laboratory. Caption reads, " High Power Radio Waves generated by the machine make the glass to metal seals needed in vacuum tubes."
Found in RS: 39/2/20, ENG 6, Folder 6-3 Laboratories, 1940-58
Print Measures 22 x 26.8 cm
University of Illinois Archives
39/2/20 Photographic Subject File, 1868-
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