Richardson's handbook of projection (1930)

Record Details:

Title:
Richardson's handbook of projection
Date:
1930
Publisher:
New York : Chalmers Publishing Company
Volume:
Richardson's handbook of projection
Leaf #:
000288
Language:
English
Subjects:
Motion Pictures, Motion Picture Technology
Collection:
Books
Format:
Books
Contributor:
Media History Digital Library
Sponsor:
Media History Digital Library
Coordinator:
Media History Digital Library
Description:
Date Added:
March 28, 2024
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1212 HANDBOOK OF PROJECTION FOR Figure 440. RCA Photophone Non-Synchronous Turntable Equipment. RCA Photophone, Inc., manufactures a non-synchronous twin turntable which is used in conjunction with the regular RCA Photophone amplifier and loudspeaker system to reproduce ordinary 78 revolutions-per-minute phonograph records. This equipment consists essentially of a twin turntable, two magnetic pick-ups and necessary apparatus for changing from one disc to the other. Each turntable is equipped with an induction disc motor which operates from the 110-volt, 60-cycle power line, drawing negligible current. On each RCA Photophone amplifier there is included a special jack labeled "Phonograph Pick-up," and the output from the non-synchronous turntable is fed into this jack. With this system it is possible for a theatre to score a picture which was not originally s/upplied with a synchronized score on film or disc. Special effects may also be reproduced by this system, employing appropriate recordings. ^ The RCA Photophone turntable is equipped with a volume control which is calibrated so that a cue sheet may be arranged, and with a fader for transferring from one disc to the other.