Two cathode-ray tubes type HR2/100/1.5A, made by A.E.G. for Freya and Coast Watcher radar, German, 1939-45 Two cathode-ray tubes type HR2/100/1.5A for Freya and Coast Watcher radar
Illuminated display describing the manufacture of a junction transistor Illuminated display describing the manufacture of a junction transistor
Portable traffic-light column and controller, for use with radar sensor. Portable traffic-light column and controller, for use with radar sensor.
Cathode-ray tube type HRP2/100/1.5Ash, with flat screen bearing scale 0-200, made by A.E. C. for Freya and Coast Watcher radars, German, 1939-45. (Note: final symbol in type number given here as `h', is dubious, that is type number is more likely to be HRP2/100/1.5As). Cathode-ray tube type HRP2/100/1.5Ash for Freya and Coast Watcher radars