Richardson's handbook of projection (1930)

Record Details:

Title:
Richardson's handbook of projection
Date:
1930
Publisher:
New York : Chalmers Publishing Company
Volume:
Richardson's handbook of projection
Leaf #:
000287
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:
March 28, 2024
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MANAGERS AND PROJECTIONISTS 1211 units are used, they are connected in parallel. If more than two are used, then a special transformer is supplied, its capacity depending upon the number of units to be used. Figure 439. VERSATILE MODEL.— The Versatile model has the same reproducing unit supplied with the Motio-Tone model. The motors are the same type, as also are the pick-ups, fading panel, record drawers, etcetera, except that the amplifying unit is self contained. It is a fourtube, heavily constructed unit having two stages of amplification. The final stage uses a UX-250 or a UX-210 tube, at the option of the user. This equipment is entirely A. C. operated, from the power lines. It has specially designed transformers