The international photographer (Jan-Dec 1941)

Record Details:

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A COMPLETE MEANS OF INSTANTANEOUS PARTICIPATION IN SIGHT AND SOUND TCL£ V Du Monte Mobile television equipment, comprising the camera, camera controls and synchronizing-signal generator, shading control and monitor, power supply and other units, all capable of being packed into an. ordinary automobile. Television Pickup Equipment In Units and Chains Breaking down the intricate mass of television pickup equipment into the various functional categories, translated into individual units which in turn connect and work together to form a chain for given video broadcasting requirements, Du Mont engineers have vastly simplified television studio and remote pickup equipment. Indeed, it is now feasible to obtain just the units required for given video program work, while the flexibility of the chain permits the addition or substitution of units at any time as changing conditions may dictate. The interchangeability of some units, plus the fact that the exact same units are available for both studio and outside usage, spells minimum investment for the telecaster. Both direct camera pickup and film pickup requirements are covered by the units and chains. The chains may be single or dual-camera chains. The same units can be arranged in a wide varietj of combinations to take care of varying conditions and changing needs. The units are housed in attractive individual metal cases, with carrying handles and removable front covers i-\|.(>-iii'. the (lain-l loi operation. The) 26 connect together by flexible cables, plugs and receptacles. The units may be placed on tables or shelves for studio pickup, or packed in a car for outside or remote pickup use. This dual function is highly important, particularly to the small telecaster who wishes to minimize his investment. The single iconoscope camera chain comprises twelve units, namely, the iconoscope camera mounted on its tripod, the camera supply power unit, the electronic view finder, the view finder supply unit, the iconoscope camera control unit, the camera control power supply unit, the shading generator and monitor oscillograph, the camera monitor and supply unit, the line amplifier, switching unit and monitor oscillograph. This chain feeds directly into the transmitter and the 12-inch station monitor, or, when used for remote pickup, into the ultra-high-frequency transmitter. A dual camera chain calls for two cameras, each with its camera power supply, electronic view finder, and view finder supply units, working in conjunction with their individual camera control, camera control power supply, camera monitor, and camera monitor supply units, both chains working directly with line amplifier, unit and monitor oscillograph line amplifier power supply, line monitor supply, synchronizing generator and line monitor, feeding into transmitter and station monitor, or ultra-high-frequency relay transmitter. The Du Mont engineers have built for telecasters a dual film pickup camera chain, which included two camera scanning units picking up movie images projected by movie projectors, and 41 associated units. Since each equipment is for studio or stationary use, the units are permanently mounted in racks with a sloping panel desk at which sit the operators who monitor the images appearing before them on 12-inch screens, with the further guidance of oscillograph signal patterns. The units are made to a uniform cabinet design, finished in crackeled gray with chrome trim. Each unit is fully portable. Its panel and controls are protected by a removable cover. Connections are facilitated by cables, plugs and receptacles, fully keyed to insure correct connections. The basic power supply is the usual 115-volt 60-cycle AC line. An adequacy of controls and cathode-ray screen monitors provides for proper control and supervision at every stage in the long and intricate successions of functions from camera to transmitter. In the usual pickup routine only two operators are required, namely, the camera operator who aims the lens and keeps it on the subject, with due regard for field, action and focus, and the monitor operator at the sw itchin The electronic view finder with cover removed to show working details. The cameraman knows precisely what he is getting and what he is passing on to his audience.