Plumbicon T.V. camera tube, parts of an image photon counting system used on the Anglo-Australian Telescope at Siding Springs in New South Wales, Australia. Plumbicon T.V. camera tube 1975-1980
Three spare tubes for Kelvin and Hughes Mk 5 Ultrasonic Flaw Detector. (Inv.1985-77) Three spare tubes for Mk 5 Ultrasonic Flaw Detector
Three sectioned cathode ray tube assemblies with one descriptive photograph of each Three sectioned cathode ray tube assemblies