A system for recording and reproducing television signals

A system for recording and reproducing television signals by means of magnetic tape has been developed. This system will accommodate both monochrome and color pictures. For monochrome pictures, two channels are used, one for the video signal and one for the sound signal. These signals are recorded as two tracks on 1/4-inch magnetic tape. For color pictures, five channels are used: video channels for the color signals red, green and blue, the synchronizing channel, and an audio channel. These signals are recorded as five tracks on 1/2-inch magnetic tape. An electronic servomechanism provides the speed constancy required for the reproduction of television signals from magnetic tape. The present tape speed is 30 feet per second. The recorded and reproduced frequency band is over 3 megacycles. There is a description of a demonstration which included side-by-side showing of a direct picture, and the same picture recorded and immediately played back.