Mechanical television (also called televisor) was a broadcast television system that used mechanical or electromechanical devices to capture and display video images. However, the images themselves were usually transmitted electronically and via radio waves. The reason for the dual nature of mechanical television lay in the history of technology.
The earliest mechanical television components originated with 19th-century inventors, with 20th-century inventors later adding electronic components as they were created. Mechanical systems were used in television broadcasting from 1925 to 1939, overlapping the all-electronic television era by three years.
Read more about Mechanical Television: Mechanical Television in History, Flying Spot Scanners, Mechanical Television With Large Pictures, Aspect Ratios For Different Purposes, Rise of Electronic Television, Color Mechanical Television, Recording, Recent Uses of Mechanical Television, The Re-emergence of Mechanical TV Techniques
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