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Page 28
PROJECTION ENGINEERING
sound motion picture equipment
— how to
operate it
— how to
repair it
This new book makes easy the successful operation and repair of all makes of sound projection apparatus, by explaining simply and clearly the fundamentals of sound reproduction and projection upon which all types of equipment are based.
— Just published —
PROJECTING SOUND PICTURES
By AARON NADELL
Publix Theatre Corporation; Formerly of Electrical Research Products, Inc.
265 pages, 6 x 9, 100 illustrations, $2.50
Whether you are a sound projectionist by profession or only occasionally work on sound equipment, you will find this an invaluable handbook, presenting the fundamentals that will enable you to understand the problems arising in the operation and repair of all makes of sound equipment.
Beside explaining the theory of sound reproduction on disc and film, the book takes up each unit of the sound equipment, explaining the underlying theory and principles, showing by description and illustration how these are applied in various types of apparatus. At the same time the author points out the common troubles associated with each unit and the remedies for them. In addition a chapter is devoted to precautions to take to prevent trouble and another on tracing trouble and correcting it. Because of its value in forming a clear understanding of the operation of tubes and photo-electric cells, the electron theory of the nature of currents is explained, in a surprisingly simple way. The book is thorough, authoritative, practical. It minimizes constructional details of various makes of equipment in favor of the basic facts that will enable you to understand all makes.
See it 10 days free — Send this coupon
MC GRAW-Hl
NOTE: Questions, with answers, at the end of each chapter, a Precaution Index, and a Trouble Index, form the equal of an invaluable "troubleshooting" chart; a quick means of looking up the cause and cure of every projection trouble.
FREE EXAMINATION COUPON
McGraw-Hill Book Co., Inc., 370 Seventh Ave., New York, N. Y.
Send me Nadell— PROJECTING SOUND PICTURES, $2.50 for 10 days' free examination. I will return the book in 10 days or remit for it then.
Name
Address
City and State
Position
Company Pro. 11-31
T
X HE Group Subscription Plan for Projection Engineering enables a group of engineers, executives, projectionists or technicians to subscribe at one-half the yearly rate.
The regular individual rate is $2.00 a year. In groups of 4 or more the subscription rate is $1.00 a year. (In Canada and foreign countries $2.00.)
The engineering departments of hundreds of manufacturers and scores of the M. P. M. O. U. locals in the projection and allied industries have used this Group Plan extensively, in renewing their subscriptions to Projection Engineering.
Each subscriber should print his name and address clearly and state his occupation — whether an executive, engineer, department head, contractor, installation man, projectionist or technician, etc.
Remember this Group Plan when Your Subscription Expires
( Projection Engineering )
Bryan Davis Publishing Co., Inc.
52 Vanderbilt Ave.,
N. Y., N. Y.
Los Angeles Chicago Cleveland