Servicing projection equipment (1932)

Record Details:

Title:
Servicing projection equipment
Date:
1932
Publisher:
New York : Mancall Publishing Corp.
Volume:
Servicing projection equipment
Leaf #:
000152
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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136 RHEOSTAT RHEOSTAT 1. Amperage Does Not Change When Rheostat Adjustment Is Altered (a) — The meter may be reading inaccurately, therefore test it with a connected meter first. (b) — There may be a poor or dirty contact between the moving arm and the point. Clean it and smooth it down. (c) — The handle of the adjusting member may be loose or slipping. Test it and if necessary, tighten it. (d) — The rheostat wire may be badly burned or it may be completely burned out. Test and replace it. (e) — There may be a bad connection within the wiring, the coils, or the grid system. Examine and remedy the fault if it is found. 2, Rheostat Coil or Grid Burns Out Emergency Repair (temporary) : In bridging the burned-out coil or grid use a strongly insulated ( asbestos insulated ) , wire, which is capable of carrying the current. The bridge should lead from the