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2. Magic eye tube - Wikipedia

   en.wikipedia.org/wiki/Magic_eye_tube

   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 ...

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. Russian tube designations - Wikipedia

   en.wikipedia.org/wiki/Russian_tube_designations

   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):

5. List of vacuum tubes - Wikipedia

   en.wikipedia.org/wiki/List_of_vacuum_tubes

   6G-B8 – Beam power tube; 6G-E12A – 2-channel "Magic Eye"-type tuning indicator, rectangular target; 6H-B26 – Beam power tube; 6M-DE1 – Diode and "Magic Eye"-type tuning indicator, miniature 7-pin base; 6M-E4 – "Magic Finger"-type tuning indicator, miniature 7-pin base; 6M-E5 = 6ME5 – "Magic Eye"-type tuning indicator, miniature 7 ...

6. Magic Instruments' digital guitar makes it easy for ... - AOL

   www.aol.com/news/2016-04-19-magic-instruments...

   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 ...

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   AOL latest headlines, entertainment, sports, articles for business, health and world news.

8. Gonset Communicator - Wikipedia

   en.wikipedia.org/wiki/Gonset_Communicator

   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.

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