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33 results
  • Discharge tubes: aluminium disc cathode and rod anode
  • Discharge tubes- various types of anode and cathode.
  • Discharge tubes- various types of anode and cathode.
  • Discharge tubes- various types of anode and cathode.
  • 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 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'.
  • 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.
  • X-ray tube for therapeutic work.
  • X-ray tubes. Modified version of the Coolidge tube. G.R. Doglass insert tube (water-cooled) tube.
  • Geissler tubes with a complicate design.
  • Ring-shaped anode, first special type of tube for x-rays.
  • Geissler tubes with complicated design.
  • X-ray tube combined with a Villard valve.Circa 1900
  • Discharge tube with anode in shape of Maltese Cross
  • X-ray tube for therapeutic work. Cossor's first pattern.
  • Geissler tubes of complicated design.
  • Geissler tubes.
  • Electricity in the Service of Medicine.
  • Discharge tubes.
  • Endovascular Aneurysm Repair (EVAR), x-ray analysis
  • Light emitted by Röntgen Ray Tubes: blurred letters and shapes. Photoprint from radiograph, by James Wimshurst, 1898.
  • Light emitted by Röntgen Ray Tubes: blurred letters and shapes. Photoprint from radiograph, by James Wimshurst, 1898.
  • Arthur Radiguet making a radiograph (x-ray) of a recumbent man. Photograph by Radiographie Radiguet, ca. 1898.
  • Arthur Radiguet about to make a radiograph (x-ray) of a recumbent man. Photograph by Radiographie Radiguet, ca. 1898.