Prof. E.B. Kurtz, head of the Dept. of Electrical engineering, looking through a bank of ten photoelectric cells mounted in frame for use at W9XK studio, 1933.
An over-all view of W9XK's telecasting equipment, showing scanning unit (at left) and amplifier-monitor panel. Handles on scanner are used to direct scanning beam on object in studio on other side of the wall. Prof. E.B. Kurtz, head of the Electrical…