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Fig. 5. The 95-min 16mm film reels are shown on the RCA modified TP16B projectors, with Bill Sadler, left, formerly KRON-TV supervisor, and Donald Anderson, KRON-TV engineer. This second camera is used with a 2 X 2 slide projector and an automatic slide projector.
utilized in playing recordings through one channel feeding a speaker in the studio, so that an artist may sing to the accompaniment of a recorded orchestra without danger of acoustic feedback since his voice is amplified by a separate channel.
The film-room equipment at KRONTV is remotely controlled and is nearly automatic in operation. The automatic slide projectors (Fig. 4) have been modified for remote control from the operating console, and special cams and reversible motors have been installed. Thus it is unnecessary for a man to be in the film room to change slides and since each automatic projector is associated with one film camera, the video operator can easily preview and shade each slide before switching it on the air. The film
room equipment is laid out for maximum efficiency and continuity of operation. Since duplicate equipment is provided, protection in case of equipment failure is assured.
The original RCA TP16B 16mm film projectors have been modified by extending the reel arms and by providing specially designed Goldberg 95-min film reels as shown in Fig. 5. The new Eastman projectors are designed to be used with 4000-ft reels. Thus a onehour kinescope recording or film feature may be spliced to film station identifications, film spot announcements and another half-hour show and run continuously on one projector. The film editing and make-up are done by the program department downtown, and the film is delivered to the technicians at the
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October 1953 Journal of the SMPTE Vol.61