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GPL Introduces First TV Camera Chain Designed from Start to Finish for Compactness and Ease of Operation
Compact GPL camera and control unit have been "human engineered" for easy, efficient use. Camera provides uniform focus adjustment for all lenses; iris is motor-controlled from rear of camera or from control unit, with lens opening shown on dials at both locations. Control unit has 8 '/2 " monitor tube.
IMPROVED SYNC GENERATOR
The sync generator, with its power supply, is a single unit, packaged for field use. Because binary counting circuits are used, and pulse width is controlled by delay lines, it provides circuit reliability better than present studio equipment. With this circuitry, all operator adjustments are eliminated.
' Camera Chains • TV Film Chains TV Field and Studio Equipment Theatre TV Equipment
Built with the compact precision which distinguishes a quality watch from an alarm clock, GPL's new image orthicon camera chain is smaller, lighter, easier to use. It is the first camera chain that has been "human engineered" — designed from motion studies of cameramen and control personnel. It is the first with type and location of controls based on minimum movement and maximum ease and efficiency.
This simplification, together with size and weight reduction has been accomplished without any sacrifice or limitation whatever in performance or accessibility. Superior GPL circuit design provides a better picture than normally obtainable with image orthicon equipment. Complete control is provided for every studio or field requirement.
Logical components have been combined . . . fewer units make up a chain. A single chain consists of only 4 units; a triple chain, 12 including switching unit and master monitor. The camera, with integral view finder, is only 10%" x 12i/2" x 22", weighs 75 lbs. instead of 100-105 lbs. The sync generator is a single portable unit including its own power supply. It may be easily removed from its case to go into a standard relay rack.
SIMPLIFIED CONTROL
All controls are at the finger-tips of cameramen and camera control operators. Focus adjustment of all lenses is uniform; a given rotation of focus control produces the same shift in plane of focus for all lenses. The iris is motor-controlled, either from the rear of the camera or from the camera control unit. Dials on both camera and control unit indicate the lens opening. Negative feedback is used to stabilize video frequency response, eliminating an adjustment. Target and beam are controlled by thumbwheels next to convenient knobs for pedestal and gain.
READILY ADAPTABLE
GPL Camera Chains completely meet all studio and field requirements or may be readily adapted to supplement existing installations. Before you make any camera chain investment, get all the facts on this new addition to GPL's outstanding line of TV studio equipment.
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General Precision Laboratory
I N
PLEASANTVILLE
CORPORATED
NEW YORK
Telecasting • BROADCASTING
January 1, 1951 • Pags 59