Nation projector carbons (1935)

Page scan 00068 from Nation projector carbons

Record Details:

Title:
Nation projector carbons
Date:
1935
Publisher:
Toronto : Canadian National Carbon Company Ltd.
Volume:
Nation projector carbons
Leaf #:
00068
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
Date Added:
May 15, 2025
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National Projector ( larbons directly in front of the crater than at 10 degrees to 'JO degrees on either side. The candle power holds up remarkably well to the 40 degree limit measured and is only 10 to 17 per cent lower at 40 degrees than at the center. 100.000 90.000 80.000 70.000 National High Intensity projector Carbons 16 MM 150 Amps 80 Volts 13.6 MM 120 72 \ Amps 'OLTS 11 MM 90 Amps 63 Volts 9 65/ VIM <MPS 51 Volts iu 50.000 40.000 30,000 20.000 10.000 40 30 20 10 0 10 20 30 40 HORIZONTAL ANGLE FROM AXIS OF POSITIVE CARBON Figure 53 Angular Distribution of Candle Power The areas of the crater openings of the different rise carbons at various currents are given in Figure 64