Sound motion pictures : from the laboratory to their presentation (1929)

Page scan 000155 from Sound motion pictures : from the laboratory to their presentation

Record Details:

Title:
Sound motion pictures : from the laboratory to their presentation
Date:
1929
Publisher:
Garden City : Doubleday, Doran & Company, Inc.
Volume:
Sound motion pictures : from the laboratory to their presentation
Leaf #:
000155
Language:
English
Subjects:
Motion Pictures, Motion pictures--Technology
Collection:
Books
Format:
Books
Contributor:
Media History Digital Library
Sponsor:
Media History Digital Library
Coordinator:
Media History Digital Library
Description:
Date Added:
August 22, 2024
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OPERATING MANUAL 135 B. Shutting Down Equipment 1. On the 200-A panel turn off the monitor and theatre horns; also key from "E" to "Off." 2. Turn off the A. C. line— "Horn Switch.'' 3. In using the film method pull the 6-pole switch controlling the exciting-lamp photo-electric amplifier. 4. On the fader turn the key to "Off." 5. On the 41-A panel turn the filament key to "Off." 6. On the 42-A panel turn the filament plate switch to "Off." 7. On the 43-A panel turn the filament plate switch to "Off." 8. Turn off A. C. line amplifier switch. 9. Turn off control switches in battery panel A-l, H-i, and F-i. C. Starting and Testing 1. Starting main amplifier equipment When the amplifier installed is the 46-A, proceed as follows : 1. See that the horn safety switch is off. If you are starting during a show make sure that the theatre horns are turned off. 2. See that the storage batteries are switched on ready for use, as explained in preceding section. See that the power safety switch is closed. (On D. C. supply, start the motor generator by turning on the motor generator switch.) 3. On the 46-A amplifier turn on the starting switch, and adjust the filament control so that the meter pointer is at the middle of the red mark. 4. Turn on the horn safety switch. 2. Testing amplifier equipment Having started the amplifier equipment, as already described, test it as follows before every show: