Search results
Results from the WOW.Com Content Network
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 ...
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 ...
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
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 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.
(The Center Square) – After millions of illegal foreign nationals were released into the country through new parole programs created by the Biden administration, at least one million were ...
Meet the experts: Purvi Parikh, M.D., an allergist with Allergy & Asthma Network; Kanwar Kelley, M.D., otolaryngologist (ENT) and co-founder and CEO of Side Health; Phillip Purnell, M.D., Ph.D ...
Allen B. DuMont Laboratories, Inc. [2] (printed on products as Allen B. Du Mont Laboratories, Inc., referred to as DuMont Laboratories or DuMont Labs, and DuMont on company documents) was an American television equipment manufacturer and broadcasting company.