Journal of the Society of Motion Picture Engineers (1930-1949)

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456 NEW MOTION PICTURE APPARATUS Fig. 8 shows the front view of a Moviola film viewing and sound reproducing machine, model UDSL. This machine is made to be used with a standard 35-mm. picture film and two separate sound films, one for standard 35-mm. film or ITVs-rnm. "split" sound film, and the other for 16-mm. sound film. It includes a FIG. 8. Film viewing and sound reproducing machine, model UDSL; for standard 35-mm. picture film with separate sound-track (full width or split) and an additional sound-head for 16-mm. sound-film. standard Moviola film viewing machine, model D, which contains a reversible, variable-speed motor, a standard Moviola sound-head, model SD, belt-driven by a reversible l/t-hp. constant-speed induction motor, and a Moviola sound-head, model SL, for 10-mm. film. Foot control is provided for each of the two motors, and a three-wire attachment cord (including a ground connection) is furnished.