Servicing projection equipment (1932)

Page scan 00069 from Servicing projection equipment

Record Details:

Title:
Servicing projection equipment
Date:
1932
Publisher:
New York : Mancall Publishing Corp.
Volume:
Servicing projection equipment
Leaf #:
00069
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:
August 15, 2024
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LIGHT SOURCE (Filament Lamps) 53 (b) — A faulty meter may be causing overloading through erroneous readings. Have the meter checked regularly. 4. Mirror Images Do Not Fall Exactly Between Filament Images (a) — This trouble may show up when a new lamp is installed. In this case it may be due to a slight difference in the assembling of the coils during manufacture, and must be compensated for by a slight alteration of the mirror. (b) — The new lamp may not have been installed according to the maker's instructions, which should be followed carefully for best results. (c) — The mirror adjustment may have loosened slightly, or may have been moved inadvertently. Do not alter the lamp at all if it has been set according to the maker's instructions, but adjust the mirror slightly until the images coincide — being very careful, however, to make the changes very slight at each adjustment. 5. Lamp is Blown Out When Projector Table Switch is Pulled (a) — If the controller handle is left at "On," then the pulling of the table switch will blow out the lamp. Always follow the proper method for putting the current "On" and "Off" when using incandescent lamps.