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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]
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 ...
EM1 (4678) – Top-view, "Magic Eye"-type tuning indicator, side-contact 8 Base; EM2 – Top-view, "Magic Eye"-type tuning indicator; has a 6.3 V/200 mA heater and was therefore marketed as C/EM2; identical AM2 except for heater ratings; EM4 – Dual-sensitivity, top-view, "Magic Eye"-type tuning indicator, EM34 with a side-contact 8 Base
At one time many radios used "magic eye tubes", a specialized sort of CRT used in place of a meter movement to indicate signal strength or input level in a tape recorder. A modern indicator device, the vacuum fluorescent display (VFD) is also a sort of cathode-ray tube. [85] [86] [87]
Ye (Russian: Е) – Magic eye tube (e.g. used as a tuning indicator). U (Russian: У) – Power triode (was soon deprecated). The 3rd element is a number – a series designator that differentiates between different devices of the same type. The 4th element denotes vacuum tube construction (base, envelope):
The Ochi exist. Furry monkey-like creatures of an orange-hued pelt with pronounced ears and huge dark eyes, the Ochi could feel just at home in the “Star Wars” universe, James Cameron’s ...
Magic Eye is a series of books that feature autostereograms. After creating its first images in 1991, creator Tom Baccei worked with Tenyo, a Japanese company that ...
Queer Eye star Jonathan Van Ness is kick-stepping into 2025 with their first-ever comedy special, Fun & Slutty, premiering Jan. 23 on the streaming platform Veeps.For the reality star-turned ...
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