Large radiometer with suspended pith vane
1800-1899
Radiometer multi-range test meter
Puluj electrical radiometer
Radiometer with suspended arrow vane
1800-1899
Crookes' electrical radiometer
1879-1888
Radiometer, double-walled
1800-1899
Radiometer on stand
1800-1899
Small radiometer in brass case, c.1910
1890-1928
Radiometer Electrodes
Radiometer electrodes in a white box
1900-1980
Presentation model photometer/radiometer
1950-1970
"Pifco All-in-One Radiometer" 500 ohms/volt multi-range meter
Radiometer with metal cup vanes and electrodes
1800-1899
Twenty four electrical radiometers illustrating Sir W.Crookes' research on electrical discharges in a vacuum
1879-1888
Wehnelt radiometer
1909-1925
Wehnelt radiometer
1909-1925
Crooke's Radiometer (dated 1877)
1877
Lovibond chromoradiometer for the estimation of X-ray dosage in radiotherapy using Sabourand-Noire pastilles
1915-1939
Radiometer with rectangular cane and pith vanes
1800-1899
Solomon's ionoquantimeter
1910-1930
Radiometer titrator, Copenhagen, 1969
1969
Automatic Titrator by Radiometer (Denmark) model TTTIB with recorder and control unit
Puluj electric radiometer
1888
Radiometer with small transparent circular vanes
1800-1899
Radiometer between two mica discs
1800-1899
Radiometer on stand with two mica discs
1800-1899
Radiometer with circular metallic vanes
1800-1899
Radiometer on stand; etched on glass "No 1277 iron and gold
1800-1899
Crookes radiometer with four diamond-shaped vanes
1965-1979
Radiometer with pentagonal pith vanes on stand
1876