Signedon bulb, stamped: Green & Bauer
FunctionThis x-ray tube has a durable heavy planitum target. The concave cathode helps focus the electron beam on the target. An extra anode is supposed to improve the tube's performance. There is an asbestos regenerator to keep the internal gas pressure at the required levels.
ProvenanceFrom the Harvard Medical School.
Related WorksRobert G. Arns, "The High-Vacuum X-Ray Tube: Technological Change in Social Context," Technology and Culture 38 (1997): 852-890.