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  2. Magic eye tube - Wikipedia

    en.wikipedia.org/wiki/Magic_eye_tube

    EM34 tuning eye EM84 tuning indicator. A magic eye tube or tuning indicator, in technical literature called an electron-ray indicator tube, [1] is a vacuum tube which gives a visual indication of the amplitude of an electronic signal, such as an audio output, radio-frequency signal strength, or other functions. [1]

  3. Allen B. DuMont - Wikipedia

    en.wikipedia.org/wiki/Allen_B._DuMont

    Magic Eye tube used for tuning in a 1939 Mission Bell Model 410 radio. (green glow) In 1932, DuMont invented the magic eye tube, or Electron Ray Tube, [14] used as a tuning accessory in radios and as a level meter in mono and stereo home reel-to-reel tape recorders. In the 1930s the manufacture of mechanical panel meters were labor-intensive ...

  4. Nuvistor - Wikipedia

    en.wikipedia.org/wiki/Nuvistor

    RCA 6DS4 "Nuvistor" triode vacuum tube, ca. 20 mm high and 11 mm in diameter Nuvistor with U.S. dime for scale. The nuvistor is a type of vacuum tube announced by RCA in 1959. . Nuvistors were made to compete with the then-new bipolar junction transistors, and were much smaller than conventional tubes of the day, almost approaching the compactness of early discrete transistor casi

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  6. Talk:Magic eye tube - Wikipedia

    en.wikipedia.org/wiki/Talk:Magic_eye_tube

    Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Donate; Pages for logged out editors learn more

  7. Autostereogram - Wikipedia

    en.wikipedia.org/wiki/Autostereogram

    A stereoscope presents 2D images of the same object from slightly different angles to the left eye and the right eye, allowing the viewer to reconstruct the original object via binocular disparity. When viewed with the proper vergence, an autostereogram does the same, the binocular disparity existing in adjacent parts of the repeating 2D patterns.

  8. Christopher Tyler - Wikipedia

    en.wikipedia.org/wiki/Christopher_Tyler

    Christopher William Tyler is a neuroscientist, [1] creator of the autostereogram ("Magic Eye" pictures), [2] and is the Head of the Brain Imaging Center at the Smith-Kettlewell Eye Research Institute [1] He also holds a professorship at City University of London. [3]

  9. Nixie tube - Wikipedia

    en.wikipedia.org/wiki/Nixie_tube

    The ten digits of a GN-4 Nixie tube. A Nixie tube (English: / ˈ n ɪ k. s iː / NIK-see), or cold cathode display, [1] is an electronic device used for displaying numerals or other information using glow discharge. The glass tube contains a wire-mesh anode and multiple cathodes, shaped like numerals or other symbols.