Servicing projection equipment (1932)

Page scan 00036 from Servicing projection equipment

Record Details:

Title:
Servicing projection equipment
Date:
1932
Publisher:
New York : Mancall Publishing Corp.
Volume:
Servicing projection equipment
Leaf #:
00036
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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20 FUSES gin. However, do not "boost" the fuse capacity at any point as it will cause the device protective fuses to blow out. (e) — Another common cause for this trouble is the use of old fuses which have been in service a long time and are more likely to blow out than new fuses. 2. New Fuse Blows After An Interval (a) — Test, first, for another short circuit or ground. (b) — If no ground or short circuit is found, look at the fuse contact points which may be dirty or corroded. Dirt or corrosion set up resistance which induces heat and the added amount may, after a time, attain a "blowing" temperature. Clean the points and inspect them occasionally; also be sure the contact is tight. 3. New Fuse Does Not Blow But the Line Remains Dead (a) — This may be due to a defective fuse. Test with another which is known to be perfect. (b) — An old, dead fuse may have been mistaken for a good one and may have been used by mistake. Throw away all fuses as soon as they blow out, except those which are especially designed for the renewal of their elements. Do not try to renew