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1947-48 Theatre Catalog, 6th Edition, Page 385 (371)

1947-48 Theatre Catalog, 6th Edition
1947-48 Theatre Catalog
1947-48 Theatre Catalog, 6th Edition, Page 385
Page 385

1947-48 Theatre Catalog, 6th Edition, Page 385





Designed for use with high intensity arcs to produce exceptionally smooth output current even beyond the normal requirements of the largest thealres.

The maximum operating load is sufficiently below the capacity of the six lSsampere tubes to result in exceptionally long life. Regularly supplied for use on ZEN-volt. three-phase, 60cycle power service. These rectiliers come in three capacities of: 30. 65 and 80 amperes.


Built in two capacities, the 4ampere single-phase for use with the 1 KW. arc lamp, and the Fill-ampere three-phase for use with larger high intensity lamps. adjustable from 45 to '50 ampercs with 35 volts across the arc.

The 40
tifier has the exacting volt-amperage characteristics and smoothing reactancc to assure a stable burning 40-amperc, 28-volt arc.

The 50-ampere 3.phase rectifier has been designed especially to supply DC power to high intensin arcs that are adjustable hetween 45 and 50 ampercs with 33 volts across the arc.


The hest device for convertng alternating current line supply to direct current for low intensity arc operation. Comprised mainly of a special transformer, a radial switch for regulating the current to the desired number of amperes. two rectifier tuhes. a substantial housing. and the necessary sockets, lead wires. etc. An elhciency of 75% means a saving in current, which will soon equal the purchase price.

Two models. lS-amperc and 30-ampere.


A rugged, simple and dependable equipment for converting three-phase alternating line supply current to direct current for use. with high intensity projection arcs of from 45 to ()5 amps capacity.

Transformer taps provide, for adjusting the output current over a wide range of amperages and voltage.

Requires no attention or maintenance. There are no moving parts to wear out, make, noise or disintegrate.

Built in single lamp units and in two sizes adjustable from 45 to 50 amperes and 45 to 65 amperes.



Since the only light which can reach the screen must be reHected by the mirror, the loss in screen light during the gradual deterioration of a reflector is in direct proportion to the loss in mirror echiency, Light losses through the use of worn-out reflectors, and amounting to several hundred dollars a year. are not unusual. Endeavorini.r to make up this light loss through the Use of more current similarly represents a pure waste in the form of unwarranted power hills, all of which makes the cost of periodic mirror replacement a good investment.

Strong precision rellH'tors in a variety of types and sizes for ltsc in all standard projector arc lamps have long heen recognized as a dependable standard of quality.

TIIE STBONG, ELECTRIC COBlt0llAT10N The World's Largest Manufacturer of Projection Arc Lamps 87 CITY PARK AVENUE TOLEDO 2. OHIO

E 6%

Portable Arc lumps Junior High Arc Lamps Junior High m lamp; Strong womb. Delaware two- rowube Roctificrs Six-tube Coppar Oxide Precision for 35 mm. Io: l6 mm, mm." lube Reditiuu Rectifiers Rediliers Rwacvon

High Intensity Ar: 0": Kilowott Arc

low Intensin An: Lumps Lamps lamps

1;, {mu/m inqum m m.- ulmrc, pmm mcnlinn z/..- tull/mt' um! [mgr number. 37]

1947-48 Theatre Catalog, 6th Edition, Page 385