Lamp bulb, incandescent
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1992.0642.001
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- OBJECT TYPE
- TANTALUM/VACUUM/110V/STRAIGHT/SCREW
- DATE
- 1906
- ARTIFACT NUMBER
- 1992.0642.001
- MANUFACTURER
- PACKARD LAMP CO.
- MODEL
- Unknown
- LOCATION
- Unknown
More Information
General Information
- Serial #
- N/A
- Part Number
- 1
- Total Parts
- 1
- AKA
- N/A
- Patents
- N/A
- General Description
- TANTALUM FILAMENT/ GLASS BULB & STEM/ PLATINUM LEADS THROUGH SEAL/ METAL (BRASS?) BASE/ PORCELAIN INSULATION/ FIBER LEADS SEPARATOR/ COPPER LEADS
Dimensions
Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.
- Length
- 13.6 cm
- Width
- 5.9 cm
- Height
- N/A
- Thickness
- N/A
- Weight
- N/A
- Diameter
- N/A
- Volume
- N/A
Lexicon
- Group
- Lighting Technology
- Category
- Lamp bulbs
- Sub-Category
- N/A
Manufacturer
- AKA
- PACKARD
- Country
- Unknown
- State/Province
- Unknown
- City
- Unknown
Context
- Country
- Unknown
- State/Province
- Unknown
- Period
- Unknown
- Canada
-
Unknown - Function
-
LIGHTING/ GENERAL/ CLEAR - Technical
-
TANTALUM DUCTILE ENOUGH TO BE DRAWN INTO WIRE/ ON AC TANTALUM CRYSTALLISED & BROKE, HAD A LONGER LIFE ON DC/ INITIAL EFFICIENCY OF 5LPW, AVERAGE OVER LIFETIME OF 4.5 LPW/ TANTALUM FILAMENT HAD LOW SPECIFIC RESISTANCE SO MUST BE LONGER & THINNER THAN CARBON FILAMENT - Area Notes
-
Unknown
Details
- Markings
- ONCE WHITE, NOW BROWN, RECTANGULAR IN SHAPE, PAPER STICKER ON BULB WITH BLACK PRINTING READS: 'Packard TANTALUM 110 [V]'/ STAMPED INTO BASE SKIRT IS: 'PAT. OCT. 15. 1907'/ STAMPED INTO PORCELAIN BASE INSULATION, VISIBLE THROUGH BULB IS: '70E'
- Missing
- N/A
- Finish
- CLEAR GLASS BULB, BUTTON & STEM/ BRASSCOLOURED BASE WITHSKIRT/ BLACK CONTACT RING/ WHITE RING BELOW BASE SKIRT/ WHITE LEADS SEPARATOR/ RECTANGULAR PAPER STICKER, BLACK ON BROWN, ON BASE/ BASE HAS ONE VENT HOLE & DIRECTLY OPPOSITE A MFR. PRODUCED DENT
- Decoration
- N/A
CITE THIS OBJECT
If you choose to share our information about this collection object, please cite:
PACKARD LAMP CO., Lamp bulb, incandescent, circa 1906, Artifact no. 1992.0642, Ingenium – Canada’s Museums of Science and Innovation, http://collections.ingeniumcanada.org/en/id/1992.0642.001/
FEEDBACK
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