magic eye

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magic eye

n
(Electronics) a miniature cathode-ray tube in some radio receivers, on the screen of which a pattern is displayed in order to assist tuning

Tuning eye

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.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.Magic eye - a transducer used to detect and measure light and other radiationsmagic 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
References in periodicals archive ?
The train raced into the night with magic eyes that must know the way.
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Little girls, meanwhile, will be looking in their Christmas stockings for a Let's Dance Barbie Doll and the Baby Born with magic eyes.