Lamp bulb, discharge

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OBJECT TYPE: fluorescent/tube/double contact/power groove
DATE: 1956–1958
ARTIFACT NUMBER: 1992.2992.001

MANUFACTURER: General Electric
MODEL: F72PG17CW Cool White Power Groove
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 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: 177.0 cm
Width: 5.4 cm
Height: N/A
Thickness: 5.3 cm
Weight: N/A
Diameter: N/A
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: North America
State/Province: Unknown
Period: mid 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 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 original power groove fluorescent lamp bulb was introduced in 1956. The groove was placed along one side of the tube, continuously except for bridging at regular intervals to increase glass strength. The resulting grooves or panels placed the phosphor closer to the centre of the arc stream and "squeezed" the arc for greater light-producing power.
Area Notes: Unknown

Details

Markings: GENERAL GE [logo] ELECTRIC/ F72PG17-CW POWER GROOVE/ COOL WHITE U.S.A.'
Missing: Appears complete
Finish: White tube/ metallic and black end caps
Decoration: N/A

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General Electric, Lamp bulb, discharge, circa 1956–1958, Artifact no. 1992.2992, Ingenium – Canada’s Museums of Science and Innovation, http://collections.ingeniumcanada.org/en/id/1992.2992.001/

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