• Thumbnail for Cathode-ray tube
    A cathode-ray tube (CRT) is a vacuum tube containing one or more electron guns, which emit electron beams that are manipulated to display images on a...
    265 KB (28,754 words) - 10:08, 30 April 2024
  • Thumbnail for Cathode ray
    Cathode rays or electron beams (e-beam) are streams of electrons observed in discharge tubes. If an evacuated glass tube is equipped with two electrodes...
    19 KB (2,640 words) - 01:20, 10 April 2024
  • Thumbnail for Cathode-ray tube amusement device
    The cathode-ray tube amusement device is the earliest known interactive electronic game as well as the first game to incorporate an electronic display...
    11 KB (1,272 words) - 18:25, 15 April 2023
  • Thumbnail for Vacuum tube
    The type known as a thermionic tube or thermionic valve utilizes thermionic emission of electrons from a hot cathode for fundamental electronic functions...
    119 KB (15,318 words) - 11:44, 16 March 2024
  • Thumbnail for X-ray tube
    bombard the cathode of the tube to release electrons, which are accelerated toward the anode and produce X-rays when they strike it. The Crookes tube was improved...
    20 KB (2,629 words) - 07:16, 18 April 2024
  • Thumbnail for Crookes tube
    1869-1875, in which cathode rays, streams of electrons, were discovered. Developed from the earlier Geissler tube, the Crookes tube consists of a partially...
    33 KB (4,113 words) - 17:26, 5 April 2024
  • Thumbnail for Hot cathode
    In vacuum tubes and gas-filled tubes, a hot cathode or thermionic cathode is a cathode electrode which is heated to make it emit electrons due to thermionic...
    21 KB (2,569 words) - 02:12, 1 March 2024
  • Thumbnail for Cold cathode
    emission of electrons. Early cold-cathode devices included the Geissler tube and Plucker tube, and early cathode-ray tubes. Study of the phenomena in these...
    12 KB (1,507 words) - 13:03, 14 November 2023
  • Thumbnail for Video camera tube
    Video camera tubes were devices based on the cathode-ray tube that were used in television cameras to capture television images, prior to the introduction...
    108 KB (12,433 words) - 15:46, 20 March 2024
  • Thumbnail for Oscilloscope
    superseded by the oscilloscope which used a cathode ray tube (CRT) as its display element. The Braun tube, forerunner of the CRT, was known in 1897, and...
    64 KB (8,498 words) - 01:27, 12 April 2024