International projectionist (Jan-Dec 1955)

Record Details:

Title:
International projectionist
Date:
Jan-Dec 1955
Publisher:
New York : International Projectionist Publishing Co., Inc.
Volume:
International projectionist (Jan-Dec 1955)
Leaf #:
0007
Language:
English
Collection:
Technical Journals
Format:
Books
Contributor:
Library of Congress, MBRS, Moving Image Section
Sponsor:
Library of Congress, Motion Picture, Broadcasting and Recorded Sound Division
Coordinator:
Media History Digital Library
Description:
International Projectionist presented the technology of cinema sound and image projection while addressing the issues and concerns of union projectionists. -- David Pierce, 2013
Date Added:
November 16, 2023
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JAN 26 1955 <^V; B Why Strong Rectifiers are Always Preferred 515158 i ^ REcrmtRl A especial £ot continuous ^.^v^on. CiivewaScoP . we.in 3-D, and a „ s „o attention ot ^^"ntenance. Tile operation even m " Po— ^^caxbonsot BO"110 riTaxbons. use-itnlOraxaca „ pie tot use with 60_75 AtoP caibonS. ^ ea^nan9ulat Y,e used •»»<■ ■ — " , 6-Tube 4-Tube 3phase *otating Coated Coaxal Tttta andCoPP« sity H« v Intensity A Lovr Intensity . an or 75-90 A«vPe*e * 40-SO 60i^ Efficient operation of each type and rating of projection arc necessitates a rectifier specifically engineered to its particular requirements. That is why Strong manufactures a complete line of rectifiers, which includes one for every type of lamp. Strong rectifiers are the only rectifiers on the market which are especially designed, manufactured and tested in one plant, together with and for use with motion picture projection arc lamps. Every Strong rectifier assures smooth output current, long life, low operating temperature, and flexibility in control. Transformer taps provide adjustment to compensate for supply voltage variations through a range of 10% above or 10% below the rated A.C. input voltage throughout the output rating range. Fine taps on the primary are connected to an 8-point external manually controlled switch which permits output adjustment while the arc is burning and without the necessity of reconnecting wires. INTERNATIONAL PROJECTIONIST • JANUARY 1955