Magic Eye Tubes

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Hasse Andersson
Inlägg: 51
Blev medlem: 3 augusti 2011, 12:43

Magic Eye Tubes

Inlägg av Hasse Andersson » 15 maj 2017, 13:39

http://www.magiceyetubes.com/

The phrase "magic eye" became a trade-mark of Radio Corporation of America
in the mid 1930s, who introduced the tube as a visual tuning aid for radio receivers.

Other names for the magic eye tube included "tuning eye" and "cat's eye" as well
as its technical name, cathode ray indicator.