Voltmeter
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1982.0071.001
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- OBJECT TYPE
- Vacuum tube/AC-DC
- DATE
- 1948–1950
- ARTIFACT NUMBER
- 1982.0071.001
- MANUFACTURER
- Hewlett Packard
- MODEL
- 410A
- LOCATION
- Palo Alto, California, United States of America
More Information
General Information
- Serial #
- Q-283
- Part Number
- 1
- Total Parts
- 1
- AKA
- N/A
- Patents
- N/A
- General Description
- Metal casing/ Bakelite knobs, Glass/ Leather handle.
Dimensions
Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.
- Length
- 20.3 cm
- Width
- 21.2 cm
- Height
- 35.7 cm
- Thickness
- N/A
- Weight
- N/A
- Diameter
- N/A
- Volume
- N/A
Lexicon
- Group
- Energy-electric
- Category
- Measurement
- Sub-Category
- N/A
Manufacturer
- AKA
- Hewlett Packard
- Country
- United States of America
- State/Province
- California
- City
- Palo Alto
Context
- Country
- Canada
- State/Province
- Ontario
- Period
- 1947
- Canada
-
This artifact was used in the National Research Laboratory for Electrical Engineering before ending up at the Museum. - Function
-
Used for accurate measurement of voltage, current (9AC & DC) and resistance. - Technical
-
Good example of VTVM of the 1940's. - Area Notes
-
Unknown
Details
- Markings
- NRC sticker on voltmeter reads: "NATIONAL RESEARCH/ ELECTRICAL/ ENGINEERING/ LABORATORIES" ; NRC number stencilled on its' side reads: "356" ; Plate at back reads: "LICENSED UNDER U.S. PAT. NO. 2,173,427 ALSO LICENSED/ BY WESTERN ELECTRIC COMPANY, INC. UNDER U.S./ PATENTS OF AMERICAN TELEPHONE AND TELEGRAPH/ COMPANY, INC./ (SEE LABEL INSIDE)/ 115 VOLTS 50-60 CYCLES/ SERIAL NO. Q283"
- Missing
- Appears complete - All input cords permanent.
- Finish
- Grey crackle casing with smooth grey front plate/ Black dial frame & knobs/ White markings.
- Decoration
- NRC sticker on front panel.
CITE THIS OBJECT
If you choose to share our information about this collection object, please cite:
Hewlett Packard, Voltmeter, circa 1948–1950, Artifact no. 1982.0071, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingenium.ca/en/id/1982.0071.001/
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