Lamp bulb, discharge

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OBJECT TYPE: fluorescent/tube/double contact/power groove
DATE: 1959
ARTIFACT NUMBER: 1992.3010.002

MANUFACTURER: General Electric
MODEL: F48PG17 CW Cool White Power Groove 25 40
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: 116.0 cm
Width: N/A
Height: N/A
Thickness: N/A
Weight: N/A
Diameter: 5.3 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: late 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 new power groove lamps, with grooves on opposite sides, were introduced in 1959. The grooves placed phosphor closer to the centre of the arc stream and "Squeezed: the arc for greater light producing power. Alternating grooves made the arc travel in a wavy path to effectively increase the length and give greater efficiency.
Area Notes: Unknown

Details

Markings: Black lettering on glass reads 'GENERAL GE (logo) ELECTRIC/ F48 PG17 CW COOL WHITE/ POWER GROOVE/ MADE IN CANADA 25 40'
Missing: Appears complete
Finish: Half of tube is white; half is colourless transparent glass/ 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, 1959, Artifact no. 1992.3010, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/1992.3010.002/

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