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1948-49 Theatre Catalog, 7th Edition, Page 289 (278)

1948-49 Theatre Catalog, 7th Edition
1948-49 Theatre Catalog
1948-49 Theatre Catalog, 7th Edition, Page 289
Page 289


1948-49 Theatre Catalog, 7th Edition, Page 289

DRIVE-IN " THEATRE SOUND SYSTEMS

The Motiograph line is most complete. There are 6 in-cor speaker sound systems, with power output of 100, 150, 3 of 250 and two of 500 watts, the largest of which will serve more than 1000 cars, and has emergency provision permitting operation at so, 250 or 500 watts. '



BASE AND STANDARD LIGHT



The Motiograph in-car speaker, larger than most units, is of quality manufacture, fabricated from heavy gauge drawn steel, plated and finished in light blue enamel. A special rubber-covered hook provides support at any desired position in the car. A constant impedance volume control is mounted in a recess in the front. Coiled cord or theft-proat connection cables are optionally available.

The in-car speaker unit is weather-proofed, the cone water-proofed and the metal parts are treated to resist corrosion. The characteristics of this unit are exactly matched to the acoustical characteristics of the speaker housing resulting in exceptionally good tone quality.

Figure A illustrated the Matiograph SE-7550 in-car speaker iunction box with base and service signal lights. The base and standard light illuminates the supporting standard and speaker, reducing tratfic hazards. The service signal light has a red lens to attract attention of vendor and is turned on or otf, by a toggle switch on in-car speaker. The in-cor speaker on the left, SE-7548, has a blue enamel finish and coiled cord. The in-car speaker on the right, SE-7547, has a brushed cadmium finish and straight cord.



EASE AND STANDARD new



SERVICE 5 mML Lmnr



The junction box mounts on unthreadad pipe or tubing up ta 3%" 0.0., without the purchase of flanges or adapters, as shown in Figure B.

5mm: slam PusnaurvnNs-Ivcn The interior of the iunction box, light sockets, terminal block and adiust able impedance matching transformer are shown in Figure C.

The Motiograph SE-7558 Ramp Switching; Panel is shown in Figure D. The Motiograph SE-7555 Ramp Switching Cabinet, Figure E, shows an upper row of switches for controlling ramp sound feed circuits. Red iewels indicate lighting circuit operation. The individual ramp sound circuit monitor switch and speaker is shown above the main control panel.





mur- cm; was The Motiograph-built turntable has been designed both tor the new long

playing and other types of records.



Motiograph also makes available an AM and FM radio set and microphone which may be utilized with the Motiograph Sound System.



There are two Motiograph central loudspeaker systems, with power output of 75 and 150 watts.



For literature and complete information write

Illa, 4431 W. LAKE ST.I, CHICAGO 24, ILL.

For further details on the Motiograph Sound Systems, please refer to another of our ads in this catalog under the heading of Sound.



EXPORT DEPT.: FRAZAR & HANSEN, LTD., 301 CLAY ST., SAN FRANCISCO 11, CALIFORNIA

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1948-49 Theatre Catalog, 7th Edition, Page 289