Physics apparatus and instruments. Early electrical apparatus and spark generators.
Image Description Selection
Item 150 A high voltage generator, named after its inventor Van de Graaff who invented it in 1926. This model is large and impressive and is 39" high. Top sphere 11.5" circumference. 150
Item 250 Banks of glass or earthenware Leclanche and Bunsen cells. 250
Item 264 Early electricity: a cased bank of Leyden jars, box 14", 35.5cm square. 264
Item 271 A large early 19th century vacuum pump with glass bell-jar, overall height, including bell-jar 27", 68.5cm. 271
Item 276 A smaller early 19th century vacuum pump, height 17", 43cm. 276
Item 287 Apparatus for a physics laboratory, including two Barlow’s wheels and a galvanometer. 287
Item 330 Three items of late 19th century electrical apparatus: the tallest 16", 40.5cm. 330
Item 409 An early 19th century electrostatic generating machine of rustic construction, Continental, overall length 33.5", 85cm. 409
Item 410 An early 19th century electrostatic friction generator, Ramsden's pattern, overall length 30", 76cm. 410
Item 411 A late 18th or early 19th century electrostatic friction generator, probably French. Overall length 38.5", 98cm. 411
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