Film-Pulled, Theater-Type, Magnetic Sound Reproducer for Use with Multitrack Films
J. D. Phyfe, Carl E. Hittle · Journal of the Society of Motion Picture and Television Engineers · 1954
This paper describes a new type of sound reproducer which attaches to the top of standard 35mm theater motion-picture projectors. The unit permits elective playing of conventional photographic sound films by means of the usual projector-soundhead combination or magnetic tracks by means of the attachment. Sound reproduction using the attachment is of excellent quality and falls within Research Council recommendations for magnetic-track reproduction.