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1954-55 Theatre Catalog, 12th Edition, Page 347 (311)

1954-55 Theatre Catalog, 12th Edition
1954-55 Theatre Catalog
1954-55 Theatre Catalog, 12th Edition, Page 347
Page 347


1954-55 Theatre Catalog, 12th Edition, Page 347

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TODAY'S RECTIFIERS for TOMORROW'S ARCS "50,000 HOUR" and tlSUPERIOR" SELECTIFIERS

are simple in installation, operation and maintenance, soundly engineered to meet abrupt changes in load, accidental overloads, corrosive atmosphere, room high' temperature conditions andeto deliver full rated output continuously at high efficiency.

Both u50,000 HOUR" and "SUPERIOR" models have:

-Uninterrupted, efficient performance under the severe demands of today's new projection techniques.

-Variable high and low range voltage control.

-Automatic protection against overloads and stack overheating.

-Scientif1cally designed down-draft ventilation.

-Rugged transformers which deliver their full rated output continuously, from glass-insulated windings.

- Simple dial controls allow any required adjustment with a flick of the wrist.

In both the u50,000 HOUR" and "SUPERIOR" models, Selenium Stacks are custom built and assembled by hand from pre-tested selenium plates which guarantees a match of the resistance characteristics of the plates in each stack. Result: Stack runs cooler, stands greater overloads, no "weak spot" Where failure can start.

Multiple coats of special corrosion resistant enamel and final spraying of moisture proof and fungus proof varnish assures corrosionproof performance.

SELECTIFIERS are designed for double-load use in emergencies.

Only SELECTIFIERS "50,000 HOUR" model has thermostatically controlled alarm signal,

SELECTIFIERS are available for immediate delivery in various ranges from 50 to 250 Amps to suit any type of arc. Special models to 450 Amps.

IMMEDIATE DELIVERY

1V rite or W/ire for Complete Details Distribution open in some states and countries

DESIGNED AND MANUFACTURED BY: AMERICAN SELECTIFIER DIVISION DISTRIBUTED BY NORPAT, INC. 113 w. 42 ST., N. Y. 36, N. Y.

DISTRIBUTORS OF EVERVTHING FOR THEATRES EXCEPT FILMS TELEPHONE: BRYANT 9>5055 EXPORT: NORPAT INTtL DIV. CABLES: NORPACREST. NEW YORK



NEW YORK OFFICE FOR: INIERNATIONAL SEAT CORPORATION

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1954-55 Theatre Catalog, 12th Edition, Page 347