Journal of the Society of Motion Picture and Television Engineers (1950-1954)

Record Details:

Title:
Journal of the Society of Motion Picture and Television Engineers
Date:
1950-1954
Publisher:
Easton, Pa. : The Society
Volume:
Journal of the Society of Motion Picture and Television Engineers
Leaf #:
000179
Language:
English
Collection:
Technical Journals
Format:
Periodicals
Contributor:
Prelinger Library
Sponsor:
MSN
Coordinator:
Media History Digital Library
Date Added:
July 19, 2022
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Proposed American Standard 35mm Magnetic Azimuth Alignment Test Film (Third Draft) PH22.99 Page 1 of 2 pages 1. Scope 1.1 This standard specifies a test film to be used in aligning the azimuth of magnetic heads on 35mm magnetic recording and reproducing equipment where the head width is not greater than 0.200 in. 2. Test Film 2.1 The test film shall have an original recording of an 8000-cycle sinusoidal tone with a film speed of 96 perforations per sec or 90 ft per min. 2.2 Three sound records shall be recorded in accordance with the dimensions specified in American Standard PH22.86-1953, 200Mil Magnetic Sound Tracks on 35mm and 17!/2mm Motion-Picture Film, or the latest revision thereof approved by the American Standards Association, Incorporated, and as shown in the drawing. HEAD *l HEAD *2 HEAD *3 RECORDING OR REPRODUCING HEADS IN LINE TRAVEL TNO°3K I BASE DOWN -0.689 JO. 004 0.150 -35 MM ALL DIMENSIONS IN INCHES UNLESS OTHERWISE INDICATED NOT APPROVED 172 February 1954 Journal of the SMPTE Vol. 62