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48 results
  • X-ray tube. Type of tube suitable for use with moderate currents. Inscribed 'Original Muller X-ray tube No. 81577'.
  • X-ray tube for therapeutic work.
  • A 19th century X-ray tube.
  • A 19th century X-ray tube.
  • A 19th century X-ray tube.
  • A Coolidge X-ray tube for producing X-rays.
  • X-ray tube for therapeutic work. Cossor's first pattern.
  • An X-ray valve tube. English version of the French Villard valve type. Inscribed 'Phillips X-ray Ltd'
  • X-ray tubes. Modified version of the Coolidge tube. G.R. Doglass insert tube (water-cooled) tube.
  • X-ray tube combined with a Villard valve.Circa 1900
  • An X-ray valve tube for heavy currents. Inscribed 'Polypher, Munchen'.
  • X-ray tube. Inscribed 'Cox's Record Regulating tube.' Suitable for treatment or radiograph with light currents.
  • X-ray tube a later version of the Coolidge X-ray tube. (10 k.w. heavy anode tube [air-cooled] by Philips. Heat is carried away from the target by a heavy block of copper and the metal fins.
  • An X-ray valve tube, common type. Inscribed 'Made in England by Cuthbert Andrews'.
  • An X-ray valve tube, common in blue glass. Inscribed 'Made in England by Cuthbert Andrews'
  • An X-ray tube, common type. Inscribed 'Instanta' Tube - Macalister-Wiggin Pattern. Sole British Manufacturers Newton and Wright. Bears Ministry of Munitions Label.
  • X-ray tube. Heavy and anti-cathode type. The anti cathode has a curious funnel-like projection facing the anode.
  • X-ray tube. Heavy anti-cathode (Gundelach type). The anti-cathode of tungsten is set in copper and is inscribed 'Patented Sept 5 1911'.
  • An X-ray valve tube designed by Sir Oliver Lodge. Inscribed "Sir O. Lodge. Patent C 685". Made by Watson's 25.8.15. Made of Amber glass.
  • A compound fracture in the arm caused by a bullet, with a drainage tube in place: x-ray. Photograph, 1914/1918.
  • Ring-shaped anode, first special type of tube for x-rays.
  • Discharge tubes: aluminium disc cathode and rod anode
  • Crookes' type discharge tubes
  • Discharge tubes for experiments on effects of cathode rays
  • Geissler tubes.
  • Geissler tubes with complicated design.
  • Geissler tubes of complicated design.
  • Geissler tubes with a complicate design.
  • Discharge tubes- various types of anode and cathode.
  • Geissler tubes with complicated design.