multiplier for voltmeter
Datelate 19th Century
Inventory Number0269b
ClassificationVoltmeter
Subject
Maker
Weston Electrical Instrument Corporation
founded 1888
User
Harvard Engineering School
1918 - 1951
Cultural Region
Place of Origin
Place of Use
Dimensions18 × 16.4 × 16.3 cm (7 1/16 × 6 7/16 × 6 7/16 in.)
Material
Accessoriesgoes with voltmeter 0269a
DescriptionThe instrument is cylindrical, and consists of a perforated metal cylinder topped by a flat, disk-shaped wooden top and base. The top has two binding posts, a push button and two metal brackets for securing a leather handle (which is missing).
Multiplier for 600 V. 52,380 ohms.
Multiplier for 600 V. 52,380 ohms.
Signedoval plaque on the side: WESTON DIRECT READING VOLTMETER / NO. 27 / MADE BY THE / WESTON ELECTRICAL INSTRUMENT CO. / NEWARK, N.J., U.S.A.
Curatorial RemarksCarrying handle on top missing.
Harvard University label missing,
FunctionMultipliers extend the range of use of voltmeters and ammeters.
Multipliers may be contained in the voltmeter case, but external multipliers, calibrated for a particular instrument, may also be used. This multiplier is designed for use with the Weston Direct Reading Voltmeter.
Multipliers may be contained in the voltmeter case, but external multipliers, calibrated for a particular instrument, may also be used. This multiplier is designed for use with the Weston Direct Reading Voltmeter.
ProvenanceFrom the Harvard Engineering School. Removed to this collection 11/56.
Weston Electrical Instrument Corporation
Date: circa 1900
Accessories: Weston portable voltmeter, item 0279a
Object number: 0279b
Weston Electrical Instrument Corporation
Date: late 19th Century
Accessories: 0269b (which is a multiplier for 0269a)
Object number: 0269a
General Electric Company
Date: late 19th-mid 20th Century
Accessories: for voltmeter (0271a)
Object number: 0271b
Weston Electrical Instrument Corporation
Date: 1910-1917
Accessories: belongs with voltmeter (0526a); other accessories are another shunt (0526b) and the box (0526d)
Object number: 0526c
Siemens & Halske AG
Date: circa 1900
Object number: 0275a,b
Weston Electrical Instrument Corporation
Date: circa 1925
Accessories: is an accessory of standard voltmeter (0531a)
Object number: 0531b
Weston Electrical Instrument Corporation
Date: 1900-1917
Accessories: belongs with voltmeter (0526a); other accessories are another shunt (0526c) and the box (0526d)
Object number: 0526b
Weston Electrical Instrument Corporation
Date: late 19th Century
Accessories: two shunts (#0270b and #0270c); special leads
Object number: 0270a
Weston Electrical Instrument Corporation
Date: late 19th Century
Accessories: goes with #0270a
Object number: 0270b
Weston Electrical Instrument Corporation
Date: circa 1920
Accessories: resistor
Object number: 0483a,b
See also/See also
