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16-Mm Film Phonograph for Professional Use*
BY CARL E. HITTLE
RCA VICTOR DIVISION, HOLLYWOOD, CALIFORNIA
Summary — Superior performance of new 16-mm film phonograph designed for the motion picture industry permits its use as a standard to determine the sound quality of 16 mm films and to check performance of 16-mm projectors.
Additional features include a self-contained preamplifier, rewind at accelerated speed, dependable operation, compactness, accessibility for servicing, and attractive styling.
SINCE THE INCEPTION of sound on film, 35-mm film has been the accepted standard of the motion picture industry. For several reasons, 16-mm film has not been used where the best in picture and sound were required, but 16-mm film production is on the increase and there is a tendency in this to judge the quality of 16-mm sound in direct comparison with that obtained with 35-mm film. With the increase in the number of 16-mm productions has come an increase in the use of 16-mm equipment exclusively in these productions. Much of the original recording is being done on 16-mm film. Therefore, not only is the quality of the performance of the 16-mm film recorder important to the achievement of high-quality sound print, but also the quality of performance of the 16-mm film phonographs used in the re-recording of the productions and in determining the quality of the original recording. A paper by Collins1 described the construction and performance of a new 16-mm film recorder. The sound quality obtainable with it compares favorably with that obtainable using 35-mm recorders of modern design. The PB-176, 16-mm film phonograph (Fig. 1) has been designed as a companion unit using all the applicable features of the PR-32, 16-mm recorder described in the aforementioned paper.
The principal features which the two units have in common are: (a) A base assembly (Fig. 2) containing the receptacles for electrical connections, lamp rheostat, and cast-in recesses that form the handles for carrying.
* Presented May 20, 1948, at the SMPE Convention in Santa Monica.
MARCH, 1949 JOURNAL OP THE SMPE VOLUME 52 303