Society of Motion Picture and Television Engineers - An A-C. Operated Sound Motion Picture Reproducing Equipment

Author(s): T. D. Cunningham
Publisher: Society of Motion Picture and Television Engineers
Publication Date: 1 June 1931
Volume: 16
Page(s): 719 - 734
ISSN (Paper): 0097-5834
DOI: 10.5594/J08045
Regular:

This paper describes the RCA-Photophone type PG-30 sound motion picture reproducing equipment, which requires no batteries or motor-generator sets for plate, filament, and bias voltages, for... View More

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