Servicing projection equipment (1932)

Record Details:

Title:
Servicing projection equipment
Date:
1932
Publisher:
New York : Mancall Publishing Corp.
Volume:
Servicing projection equipment
Leaf #:
000126
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:
March 28, 2024
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110 LIGHT CONDITIONS (b) — The former light may have given a sufficient degree of brilliancy with a dirt-encrusted, oldsurfaced screen, but the "soft" light will show a marked decrease of brilliancy against this same dull and dingy surface. A clean, bright screen may completely change any contrary opinions. (c) — If after using the lamp the light on the screen appears poor, the lamp may have lost its light intensity through age. If you have been overloading the lamp or working it above the rated capacity in order to get a more brilliant screen light, its life may be greatly shortened and its loss of intensity very marked after a short use. 7. Lacking Detail in Picture With Incandescent Lamp (a) — This is most probably due to the same reasons as those listed under section 6, headed, "Light on Screen Poor with Incandescent Lamp." 8. Light Unusually Poor With Mazda (a) — The lamps are not being operated up to a rated amperage. Test the amperage and also test the ammeter for inaccuracy, if the amperage reading is normal and the light is not. (b) — The lamp is being employed after its useful life period has passed and it has lost its illuminating power. The only remedy is to install a new lamp.