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The magic eye (also called a cat's eye, or tuning eye in North America) is a specific type of such a tube with a circular display similar to the EM34 illustrated. Its first broad application was as a tuning indicator in radio receivers , to give an indication of the relative strength of the received radio signal, to show when a radio station ...
The Gonset Communicator was a series of vacuum tube VHF AM radio transceivers that were widely sold in the 1950s and early 60s. They were designed by Faust Gonsett and manufactured by the Gonset Division of L. A. Young Spring and Wire Corp. [ 1 ] Models were built for amateur radio , aircraft radio and U.S. Civil Defense use.
The album cover is a close-up shot of a Magic eye tube fitted onto vintage radio receivers from the 1930s. The purpose of tuning eyes in these radio sets was to help tune a station in at its strongest point on the dial. So when the perfect frequency was found, the Magic Tuning Eye would be lit up all the way (like the album cover's).
V (Russian: В) – Vacuum tube with secondary emission. L (Russian: Л) – Nonode. 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.
For transmitting tubes in this system, the second element starts with a dash, a sequentially assigned number, then an optional letter specifying cooling method. For phototubes and photomultipliers, the second element is a sequential number and then a letter code identifying vacuum or gas fill and the type of cathode.
Magic Instruments co-founder and CEO Brian Fan knows the pain of learning new instruments. A Juilliard-trained pianist before starting his own company, he spent years trying to learn the guitar ...
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 ...
The 400 included a green magic eye tube, which, by creating an image of a broken green bar that slowly closed to a solid bar, assisted users in tuning to the best possible position on the dial for a given station and added to the aesthetics. The 400 is considered by many to be the best-sounding of the three models.
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