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1945 Theatre Catalog, 4th Edition, Page 370 (346)

1945 Theatre Catalog, 4th Edition
1945 Theatre Catalog
1945 Theatre Catalog, 4th Edition, Page 370
Page 370

1945 Theatre Catalog, 4th Edition, Page 370


As the only projection lamps manufactured complete within one factory, Strong lamps can be so engineered as to guarantee the best screen results.

A light for the moderate sized theatre using a screen up to 18 feet in Width; where the vivid brilliancy of high intensity projecrion has been heretofore denied by prohibitive operating costs.

In order to secure the desired screen brilliancy with the present dense black and white films and satisfactorily present Technicolor films, twice as much light is required as is possible to project by any low intensity lamp.

This necessary doubling in light over the low intensity is made possible with this lamp at an increased combined current and carbon cost of less than 2(1' per hour.

Designed especially for use on 35 mm. portable and semi-portable projectors which are used to project a large picture in auditoriums and where low intensity arcs or Mazda equipment do not project sufficient light or a. light of the correct color for showing films in natural Color.

The lamp burns a 6 mm. x 9 inch negative and a 7 mm. x 12 inch copper coated positive, and projects in round figures 2,000 lumcns of light. Direct current for the 40 ampere 29 volt arc is supplied by a single-phase, full wave, two tube rectifier.

The Mogul High Intensity Arc Lamp has been designed to projecc a volume of light even beyond the normal requirements of theatres employing the modern large screens of non-reflective surface and porous structure, screens that require a tremendous increase in light volume to maintain a satisfactory level of illumination.

The higher eliiciencies attained through the use of the Mogul result in this increased light intensity without a corresponding increase in operating costs. In fact, this improved projection is attained at a lower overall cost per light unit.

A compact unit only 18 inches long, 12 inches high, and 10 inches wide, well proportioned and having exceptional power.

The DC Carbon Arc is the only available source of light possessing suflicicnt power and concentration to obtain satisfactory results with portable sound equipment and using a porous screen eight to twelve feet wide.

The operation of the arc control is entirely automatic and continuous. The lamp burns at 17 amperes with a 7 mm. negative and a 10 mm. positive carbon.


, Otis-pa 2. Onion

4 ' a." so- I ,i"T..he'Woirld'sflargestq Manufacturer of Projection Arc Lamps"


Tu Idrilital: inquiry n- //Jr altar/r, [llfllSC mention this volume and page number.

1945 Theatre Catalog, 4th Edition, Page 370