Source:Doron Precision Systems, Inc., Binghamton, NY (1972)
Doron Precision Systems, Inc. Singer GPL TV Systems. GPL1200 Viewfinder TV Camera. For open or closed circuit TV programming in educational, commercial, broadcast or military applications. Cover: 3-D, B&W photograph, Features and Description. Inside cover: Accessories, Viewfinder and Remote Control Panel with photographs. Inside back cover: Technical Specifications. Back cover: System Diagram and Dimensional Drawings.