Journal of the Society of Motion Picture Engineers (1930-1949)

Record Details:

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NOTE: TERMINATC CONDUIT WITH , LENGTH OF l-l/ TO ALLOW 3/4" GREENFIELD TO SLIDE INSIDE — TO ENABLE MAKING COUPLING TO POWE THIS HIGH-VOLTAGE CABLE IS APPROXIMATELY l-l/«" OUTSIDE DIAMETER OVER ITS COPPER BRAID SHIELD AND PROTECTIVE LOOM JACKET USE 2"CONDU(T OR OTHER PROTECTIONDEPENDING ON LOCAL REGULATIONS. ABLE IS/1* THE RG-34/U CABLE IS 5/8" OUTSIDE DIAMETER AND HAS A VINYL PROTECTIVE COVERING OVER ITS BRAIDED COPPER SHIELD USE 3/4"CONDUIT OR OTHER PROTECTION POWER SUPPLY UNIT MI-15115 instructions for the projector. The projection angle will vary in different theaters but should be kept as small as possible. The screen must be angled to the same degree. A good rule that has been applied to initial installations is to mount the projector as low as possible and the screen as high as possible, consistent with sight lines to the screen from the rear of the orchestra, the mezzanine or balcony, and interference of the projector with these sight lines. This can be determined from the theater plans when the preliminary survey is made. When the distance from the balcony face to the screen is less than about 55 ft the projector may have to be mounted back two or three rows in the balcony Stanko and Keen: Installing Theater TV 347