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1950-51 Theatre Catalog, 9th Edition, Page 323 (301)

1950-51 Theatre Catalog, 9th Edition
1950-51 Theatre Catalog
1950-51 Theatre Catalog, 9th Edition, Page 323
Page 323

1950-51 Theatre Catalog, 9th Edition, Page 323

The COMPLETE Line of immer Controls

Your surest source of the correct dimming equipment for any type of theatre, auditorium, hall, etc., is Ward Leonard, the only manufacturer offering all types of control-reactance, resistance and autotransformer, both manual and remote.

Ward Leonard's engineering department will be glad to furnish recommendations or specifications. Send complete information about your installation problem.


New electronic circuits, using small current values and miniature control devices, permit grouping many dimming and switching controls into one control board for one-man operation.

Single rectifier tube per circuit reduces upkeep to a minimum.

Various circuits can be interlocked electronically for group master or grand master control from a single operating lever. Pre-set control per

Individual Hysterset

Reactor Rack

mits pre-selection of two or more lighting combinations or scenes in advance. Wide range-standard design is suitable for 20% to 100% dimmer rating.

Response to the pilot control is instantaneous for quick blackouts or

immediate brightening. Bulletin 74.

Desk-type Control Boa rd

Enclosed Form 39 dimmer bank, using Vitrohm interlocking dimmers.

WARD LEONARD'S VlTROHM. Inexpensive assemblies for small theatres and schools provide low-cost, flickerless dimming.

Type SRD - non-interlocking. Single or multi-plate assemblies. Bulletin 71.

Type RD - interlocking, for flexibility of control. 110 steps of control. Bulletin 72.

Autrastat dimmerscomposite switchboard and dimmer bank.

5RD non-interlocking dimmer.

WARD LEONARD'S AUTRASTAT AND RADIASTAT. Radiastat (radial type) - 5500 and 8000 watts 120 volts AC. The foolproof, maintenance-free autotransformer dimmer. 1 15 large brass contact segments and multiple


Special Form A-33 dim mer bank designed for bench-type composite bank and switchboard.


silver alloy Contact shoes give positive contact for large-capacity loads. Bulletin 76.

Autrastat (rectangular type)w4000 watts 120 volts AC. Metallic contacts to withstand high inrush current of large incandescent lamps. Bulletin 76.

Remote operation of resistance, Autrastat or Radiastat dimmers with

Motorlite or Regulite control systems are excellent for installation requiring control from proiection booths.


Raw-5W I cm


86 South Street, Mount Vernon, N. Y. Offices in all principal cities of U. S. and Canada

Relays ' Resistors '

Rheostats Control Devices

To Mali/me inquiry re (In! above, pleaw men/ion t/Je vol/mu" and [mgr number.
1950-51 Theatre Catalog, 9th Edition, Page 323