Vacuum-tubes

Fankuchen and Unidentified Others
Adams looking at vacuum tube
Kuehner, Bromley and Almvist in Control Room
Donald Kerst, Gerald Almy and R. K. Hursh at the 20 MeV betatron with a sealed-off vacuum tube
Kenneth Kingdon, H.E. Tanis and E.J. Lawton work on problems of high-voltage electron tubes
J.J. Thomson and F.B. Jewett
First Klystron
Vacuum Tube and Integrated Circuit
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