millivoltmeter and case
Date1900-1917
Inventory Number0526d
ClassificationVoltmeter
Subject
Maker
Weston Electrical Instrument Corporation
founded 1888
User
Department of Physics, Harvard University
founded 1884
Cultural Region
Place of Origin
Place of Use
Dimensions10.5 × 19 × 17 cm (4 1/8 × 7 1/2 × 6 11/16 in.)
Material
Accessoriesmillivoltmeter (0526a; shunts (0526b and 0526c)
DescriptionThe instrument case is a rectangular wooden box, with a removable panel at one end. Inside of the panel, a paper label is attached, titled, "WESTON D.C. MILLIVOLTMETER MODEL 1 NO.7172," with instrument specifications and the note, "Standardized at Weston Laboratory, Newark, N.J. U.S.A. Feb. 19, 1917."
Inscribedlabel inside instrument case titled: WESTON D.C. MILLIVOLTMETER MODEL 1 NO.7172;
instrument specifications and a note: Standardized at Weston Laboratory, Newark, N.J. U.S.A. Feb. 19, 1917
printed on label inside case lid: J.E. Herrmann
Curatorial RemarksWas first incorrectly catalogued as 1997-1-0203a, so slide shows it with that number.
Patented on November 6, 1888. Estimated date of manufacture, 1910. 1917 standardization probably a recallibration.
Direct Current.
0526a-d housed together in blue board box with lid (SMS 2/7/2024)
FunctionVoltmeter for very low voltages, up to 10 millivolts.
ProvenanceFrom the Jefferson Physical Laboratory, Physics Department, Harvard University. Triangle indicates its use for the Physics 3 course in the 1920s.
Weston Electrical Instrument Corporation
Date: 1900-1917
Accessories: wooden instrument case (0526d); shunts (0526b and 0526c)
Object number: 0526a
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
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: 1911
Accessories: shunt (0438b)
Object number: 0438a
Weston Electrical Instrument Corporation
Date: late 19th Century
Accessories: two shunts (#0270b and #0270c); special leads
Object number: 0270a
Date: 1890-1930
Object number: RS0501
Westinghouse Electric & Manufacturing Company
Date: 1952
Object number: 2003-1-0037
Date: 1890-1930
Object number: RS0505
Weston Electrical Instrument Corporation
Date: 1894
Accessories: Weston portable multiplier (0279b); standardization certificate on back of lid
Object number: 0279a
Weston Electrical Instrument Corporation
Date: circa 1925
Accessories: shunt (0531b); box of 6 screws, two modified bolts, and one small piece of wood (all these originally housed in petri dish, now transferred to archival box)
Object number: 0531a
Siemens & Halske AG
Date: circa 1910
Accessories: seven shunts (0560b-h)
Object number: 0560a