Society of Motion Picture and Television Engineers - A New Alternating-Current Projection Arc

Author(s): D. B. Joy ; A. C. Downes
Publisher: Society of Motion Picture and Television Engineers
Publication Date: 1 August 1933
Volume: 21
Page(s): 116 - 125
ISSN (Paper): 0097-5834
DOI: 10.5594/J02038
Regular:

A new type of arc operated on alternating current is a desirable substitute for the low-intensity, direct-current arc used in the majority of motion picture theaters. This arc is a modification of... View More

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