Valve Tube


This type of tube was used in a series or parallel circuit with an x-ray tube when an alternating current source of high voltage (e.g., an induction coil) was used. It was proposed by Paul Villard (1860-1934), a French chemist and physicist, and called a "valve tube" because it would only permit current to flow through the tube in one direction. The coil side was connected to the anode (the target) of the x-ray tube.

Associated Dates: 1978 02 / 1978 02

Location: Currently not on view

Associated Place: United States: New York, New York CityAssociated Place: United States: Rhode Island, East Providence, Rumford

See more items in: Medicine and Science: Medicine


Exhibition Location:

Credit Line: Philip Batchelder, M.D.

Data Source: National Museum of American History

Id Number: 1978.0121.25Catalog Number: 1978.0121.25Accession Number: 1978.0121

Object Name: valve tubetube, valvecold cathode rectifier

Physical Description: glass (overall material)Measurements: overall: 10 cm x 28.5 cm x 12.5 cm; 3 15/16 in x 11 1/4 in x 4 15/16 in


Record Id: nmah_1052164

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