F. H. Richardson's bluebook of projection (1935)

Record Details:

Title:
F. H. Richardson's bluebook of projection
Date:
1935
Publisher:
New York : Quigley Publishing Company, Inc.
Volume:
F. H. Richardson's bluebook of projection
Leaf #:
000645
Language:
English
Subjects:
Motion Pictures, Motion Picture Technology
Collection:
Books
Format:
Books
Contributor:
Media History Digital Library
Sponsor:
{"Media History Digital Library","Jeff Joseph"}
Coordinator:
Media History Digital Library
Description:
Date Added:
August 01, 2024
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OPERATION OF SOUND EQUIPMENT 627 the equipment for himself. He knows what it is intended to do, and the principles on which it works. In addition to having that knowledge he needs chiefly reasonable Fig. 152. — View showing arrangement of RCA Victor Photophone High Fidelity Sound System speakers behind screen. The three upper units (triplets) are directional baffles. A cone-type dynamic speaker is concealed in each of the three upper boxes. A fourth speaker is concealed in the large, lower unit, which is a special baffle designed to reproduce the very low frequencies only. Compare this with Fig. 144. time, and willingness to be patient and careful. Switches should not be thrown in blindly, "to see what will