Vacuum tube
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1966.0621.001
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- OBJECT TYPE
- POWER AMPLIFIER/REPEATER
- DATE
- 1922–1939
- ARTIFACT NUMBER
- 1966.0621.001
- MANUFACTURER
- Northern Electric
- MODEL
- 104D
- LOCATION
- Canada
More Information
General Information
- Serial #
- 980
- Part Number
- 1
- Total Parts
- 1
- AKA
- N/A
- Patents
- N/A
- General Description
- GLASS/ SYNTHETIC/ METAL
Dimensions
Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.
- Length
- 10.4 cm
- Width
- 5.8 cm
- Height
- N/A
- Thickness
- N/A
- Weight
- N/A
- Diameter
- N/A
- Volume
- N/A
Lexicon
- Group
- Vacuum Tubes
- Category
- Telephone
- Sub-Category
- N/A
Manufacturer
- AKA
- Northern Electric
- Country
- Canada
- State/Province
- Unknown
- City
- Unknown
Context
- Country
- Canada
- State/Province
- Unknown
- Period
- PROBABLY 1920'S & 1930'S
- Canada
-
MANUFACTURED AND PROBABLY USED IN CANADA - Function
-
USED AS A VOICE AND CARRIER FREQUENCY AMPLIFIER FOR TELEPHONE REPEATERS (REF.1). - Technical
-
REPLACED MODEL 104A, BUT NOT THE D-86327 VERSION WHICH WAS ESPECIALLY SELECTED FOR HIGH INSULATION. THIS MODEL WAS DISCONTINUED AFTER PRODUCTION IMPROVEMENTS IN THE 104D (REF.1, PG.122). THE OVERSTAMPING OF D-86327 INDICATES THAT THE IMPROVEMENT WAS NOT COMPLETE. - Area Notes
-
Unknown
Details
- Markings
- ON GLASS: '980'/ HOT BRANDED IN BASE: 'NORTHERN ELECTRIC/ MADE IN CANADA/ 104D OR D-86327'
- Missing
- From CA of 05/01/1998 by Pat Montero: No - Complete
- Finish
- UNCOLOURED GLASS/ BLACK SHELL
- Decoration
- N/A
CITE THIS OBJECT
If you choose to share our information about this collection object, please cite:
Northern Electric, Vacuum tube, circa 1922–1939, Artifact no. 1966.0621, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/1966.0621.001/
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