Lamp bulb, discharge

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OBJECT TYPE: fluorescent/tube/bipin/rapid start
DATE: 1952
ARTIFACT NUMBER: 1992.3035.002

MANUFACTURER: General Electric
MODEL: 30T12 CW RS Cool White 4
LOCATION: Canada

More Information

General Information

Serial #: N/A
Part Number: 2
Total Parts: 2
AKA: N/A
Patents: N/A
General Description: Glass tube coated with white phosphor/ metal parts/ synthetic parts

Dimensions

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

Length: 90.5 cm
Width: N/A
Height: N/A
Thickness: N/A
Weight: N/A
Diameter: 3.7 cm
Volume: N/A

Lexicon

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

Manufacturer

AKA: General Electric
Country: Canada
State/Province: Unknown
City: Unknown

Context

Country: North America
State/Province: Unknown
Period: early 1950s+
Canada: An example of a lamp bulb made and 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 illumination by means of an electric current which excites mercury vapour in a glass tube, producing short-wave ultraviolet light that then creates fluorescence, producing visible light.
Technical: The Rapid start bulb started quickly and smoothly within one second after being turned on. The new design eliminated blinking and flickering of the light. Rapid Start bulbs were covered with a coating called Dri-Film that improved their illumination in humid conditions.
Area Notes: Unknown

Details

Markings: Black lettering on glass reads 'GENERAL GE (logo) ELECTRIC/ F30T12 CW RS COOL WHITE/ RAPID START/ MADE IN CANADA' and '4'
Missing: Appears complete
Finish: White tube/ metallic and black end caps
Decoration: N/A

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

General Electric, Lamp bulb, discharge, 1952, Artifact no. 1992.3035, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/item/1992.3035.002/

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