11. When the photoelectric cell was detecting a bright spot, the neon lamp would be bright. 12. To achieve adequate sensitivity, instead of a single cell, a number of photoelectric cells were used. 13. Outdoors, use photoelectric cells that turn lights off automatically at dawn and on again at dusk. 14. The television receiver would use the output of the photoelectric cell to drive a neon lamp. 15. United Cinephone also manufactured many of its own products using photoelectric cells and vacuum tube control systems. 16. The light reflected onto a photoelectric cell , setting off electrical impulses that were transmitted by telegraph wire. 17. Superman then disintegrates the photoelectric cell connections. 18. A September 1928 Radio News article about these photoelectric cells noted " their cost is rather staggering ". 19. Music was produced by a series of photoelectric cells underneath the chessboard, triggered sporadically by normal game play. 20. Whitford developed a device for measuring small currents from photoelectric cells , which allowed them to measure fainter stars.
