Voltmeter
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1974.0722.001
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- OBJECT TYPE
- Telephone test eq/DC/Quintuple range
- DATE
- 1926–1952
- ARTIFACT NUMBER
- 1974.0722.001
- MANUFACTURER
- Weston Electrical Instrument Corp.
- MODEL
- 56
- LOCATION
- Newark, New Jersey, United States of America
More Information
General Information
- Serial #
- 2639
- Part Number
- 1
- Total Parts
- 1
- AKA
- N/A
- Patents
- N/A
- General Description
- Aluminium body and pointers/ glass window/ paper scale/ leather strap.
Dimensions
Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.
- Length
- 33.1 cm
- Width
- 18.4 cm
- Height
- 11.4 cm
- Thickness
- N/A
- Weight
- N/A
- Diameter
- N/A
- Volume
- N/A
Lexicon
- Group
- Communications
- Category
- Telephony
- Sub-Category
- N/A
Manufacturer
- AKA
- Weston
- Country
- United States of America
- State/Province
- New Jersey
- City
- Newark
Context
- Country
- Canada
- State/Province
- Unknown
- Period
- 1926 through 1930's, probably.
- Canada
-
Used in Canada. The item was sold in Canada by one of Weston's Canadian subsidiaries. - Function
-
Measures D.C. voltage in volts and millivolts simultaneously. - Technical
-
Permanent magnet movable coil type DC portable duplex voltmeter. Good example of a functional portable test-set. It is built very sturdily and with an open circuit selection to prevent damage during transportation. This meter was intended specifically for use in electrolysis work and to withstand its "severe service". Typical example of early very accurate meter (probably used as a secondary standard). Provided with knife-edged pointers and mirrored glass to prevent parallax. The aluminium case allowed the instrument to be both durable and relatively light. It is also a significant choice of material as aluminium was becoming more and more widespread at that time. - Area Notes
-
Unknown
Details
- Markings
- On exterior of case: 'EAT[Eastern Area Transmission]/52', '24D' ; Inside of case: 'WESTON VOLT-MILLIVOLTMETER, MODEL 56, No. 2639' ; Identical mfr. plates on left and right side of scale read: 'WESTON/ MODEL 56 [stamped in]/ No 2639 [stamped in]/ WESTON ELECTRICAL INSTRUMENT CORP./ NEWARK, N.J., U.S.A.'
- Missing
- No test leads. Operable, but not very accurate.
- Finish
- Grey paint (badly scratched). Front panel black, dirty, scratched and some rust around screw holes.
- Decoration
- N/A
CITE THIS OBJECT
If you choose to share our information about this collection object, please cite:
Weston Electrical Instrument Corp., Voltmeter, circa 1926–1952, Artifact no. 1974.0722, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingenium.ca/en/id/1974.0722.001/
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