Lamp bulb, incandescent

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OBJECT TYPE: tungsten/gas/500W/250V/pear/screw
DATE: 1957
ARTIFACT NUMBER: 1992.2903.001

MANUFACTURER: General Electric Co.
MODEL: Unknown
LOCATION: United States of America

More Information

General Information

Serial #: N/A
Part Number: 1
Total Parts: 1
AKA: N/A
Patents: N/A
General Description: Glass bulb/ metal base and parts/ tungsten filament/ ceramic parts

Dimensions

Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.

Length: 23.0 cm
Width: N/A
Height: N/A
Thickness: N/A
Weight: N/A
Diameter: 12.5 cm
Volume: N/A

Lexicon

Group: Lighting Technology
Category: Lamp bulbs
Sub-Category: N/A

Manufacturer

AKA: General Electric
Country: United States of America
State/Province: Unknown
City: Unknown

Context

Country: Canada
State/Province: Unknown
Period: circa late 1950s+
Canada: An example of an American made lamp bulb used in Canada, Part of a large and varied collection of over 7500 electrical items acquired and documented by Ontario Hydro in the 1960s. The collection was thought to be the largest and most comprehensive of its kind in Canada and was donated to the Canada Science and Technology Museum in 1992
Function: A device used to provide light by means of an electric current which heats up a tungsten filament inside the lamp bulb to incandescence. This type of lamp was used for general lighting on a 250V circuit.
Technical: "This voltage class (250V) is common in European countries but in the United States represents less than one percent of lamp demand. A small demand still exists for 275 and 300V lamps for mine-lighting service."
Area Notes: Unknown

Details

Markings: Black lettering on bulb tip reads MAZDA/ 500W 250V' with 'GE' logo
Missing: Appears complete
Finish: White frosted glass/ gold coloured base/ black ceramic
Decoration: N/A

CITE THIS OBJECT

If you choose to share our information about this collection object, please cite:

General Electric Co., Lamp bulb, incandescent, circa 1957, Artifact no. 1992.2903, Ingenium – Canada’s Museums of Science and Innovation, http://collections.ingeniumcanada.org/en/id/1992.2903.001/

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