Cinematographic annual : 1930 (1930)

Record Details:

Title:
Cinematographic annual : 1930
Date:
1930
Publisher:
Hollywood : The American Society of Cinematographers, Inc.
Volume:
Cinematographic annual : 1930
Leaf #:
000410
Language:
English
Subjects:
Motion Pictures, Motion Picture Technology
Collection:
Books
Format:
Books
Contributor:
Media History Digital Library
Sponsor:
{"Media History Digital Library","Richard Koszarski","Jeff Joseph"}
Coordinator:
Media History Digital Library
Description:
Date Added:
March 21, 2024
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390 CINEMATOGRAPHIC ANNUAL of each tube is kept at approximately 100 volts. In the circuit with these resistances are coils and condensers to smooth out the rectified voltage supplied to these sensitive first stages. Even the slightest knock or jar of the tubes is converted into electrical impulses which are transmitted through the system THEATRE HORN CONTROLS THEATRE HORN KEYS OUTPUT CONTROL PANEL PLATE CURRENT METER GAIN CONTROL SWITCH 41 -A AMPLIFIER WESTERN ELECTRIC 205 TYPE VACUUM TUBES (AMPLIFIER) 42 -A AMPLIFIER-* PLATE CURRENT METER WESTERN ELECTRIC, 211 TYPE VACUUM TUBES (AMPLIFIER) 43-A AMPLIFIER monitor HORN CONTROL MONITOR HORN KEY INPUT KEY FILAMENT CURRENT METER FILAMENT CONTROL PLATE CURRENT PUSH BUTTONS FILAMENT KEY WESTERN ELECTRIC 239 TYPE VACUUM TUBES(UNDER COVER WESTERN ELECTRIC 205 TYPE VACUUM TUBES (RECTIFIER) ^STARTING SWITCH PLATE CURRENT METER WESTERN ELECTRIC 211 TYPE VACUUM TUBES (RECTIFIER) STARTING SWITCH FIGURE 7