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(Electronics) a miniature cathode-ray tube in some radio receivers, on the screen of which a pattern is displayed in order to assist tuning
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
A vacuum tube incorporating a cathode ray-incited fluorescent screen on the front of the tube. The tuning eye was used in the late 1930s and early 1940s to provide a visual indication of when a radio was optimally tuned. The tube was mounted in the radio in such a way that the image (a bright, varying width annular sector of the screen) on the tube could be watched while the tuning knob was turned.
1001 Words and Phrases You Never Knew You Didn’t Know by W.R. Runyan Copyright © 2011 by W.R. Runyan
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|Noun||1.||magic eye - a transducer used to detect and measure light and other radiations|
detector, sensing element, sensor - any device that receives a signal or stimulus (as heat or pressure or light or motion etc.) and responds to it in a distinctive manner
photocathode - a cathode that emits electrons when illuminated
selenium cell - a photoelectric cell that uses a strip of selenium
transducer - an electrical device that converts one form of energy into another
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.