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Electron Tubes Object Reg. No: ST 022499

Geissler tubes, which show various effects of the passage of electricity through rarified air, gases, etc. The tubes have platinum or aluminium terminals. 6 examples with different shapes.
Acquisition Information:
Transfer from Melbourne Observatory, 1945
Discipline: Technology
Dimensions: 15 cm (Height), 31 cm (Width), 46 cm (Length)

More information

Tagged with: electron discharge tubes, geissler cathode ray tubes, thermionic electron valves
Themes this item is part of: Melbourne Observatory Collection, Engineering Collection, Information & Communication Collection, Positional Astronomy at Melbourne Observatory, Weights & Measures at Melbourne Observatory, Melbourne Observatory & Standard Time in Victoria, Astrographic Catalogue, Transits of Venus, 1874 & 1882, Buildings at Melbourne Observatory, Star Observations & Personal Equation, Meteorology at Melbourne Observatory, 1863-1908, Melbourne Observatory, 1863-1944, Geodetic Survey of Victoria, 1858-1872
Primary Classification: ELECTRONICS
Secondary Classification: Instruments
Tertiary Classification: (to be classified)
User: Melbourne Observatory, South Yarra, Victoria, Australia

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