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5 amp shunt

Datecirca 1912
Inventory Number0533b
ClassificationShunt
Subject
    Cultural Region
      Place of Origin
        Place of Use
          Dimensionsshunt: 4.9 × 11.5 × 3.2 cm (1 15/16 × 4 1/2 × 1 1/4 in.)
          blue board tray: 5.7 × 29.2 × 21 cm (2 1/4 × 11 1/2 × 8 1/4 in.)
          Material
            Description5 AMP Shunt Pat 1893 41/2 long a restistance strip held between two heavy brass binding posts on wood base. Screws for meter.
            Signedunsigned
            Inscribedcarved on wood: 5 AMP; on metal: PAT MAY [ILLEGIBLE]
            FunctionFrom Card: Except for 533b [this shunt], all these shunts are pivoted with bolts rather than wing bolts for current conductors, which would indicate these were used with switchboard meters.
            ProvenanceFrom the Jefferson Physical Laboratory, Harvard University. Was used for teaching Physics 3 class; and from Pierce Hall, Engineering School, Harvard University.
            10 amp shunt
            Weston Electrical Instrument Corporation
            Date: circa 1912
            Object number: 0533c
            100 amp shunt
            Weston Electrical Instrument Corporation
            Date: circa 1912
            Accessories: two cast metal connectors
            Object number: 0533d
            1000 amp shunt
            Weston Electrical Instrument Corporation
            Date: circa 1912
            Object number: 0533e
            1amp shunt
            Weston Electrical Instrument Corporation
            Date: circa 1912
            Object number: 0533a
            portable shunt for Weston standard milli voltmeter No. 68.
            Weston Electrical Instrument Corporation
            Date: late 19th Century
            Accessories: goes with #0270a
            Object number: 0270b
            smaller shunt for millivoltmeter
            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
            shunt for Weston millivoltmeter no. 8794
            Weston Electrical Instrument Corporation
            Date: 1900-1911
            Accessories: milli-voltmeter (0438a)
            Object number: 0438b
            1-1-10 ampere shunt
            Weston Electrical Instrument Corporation
            Date: late 19th-early 20th Century
            Object number: 1997-1-1075
            ampere shunt for Weston milliammeter
            Weston Electrical Instrument Corporation
            Date: dated 1888
            Object number: 0417b
            shunt for Weston standard milli voltmeter no 68
            Weston Electrical Instrument Corporation
            Date: late 19th Century
            Accessories: petri dish attached containing small parts and paper reading: "531; Weston no. 90"
            Object number: 0270c
            shunt for weston voltmeter
            Weston Electrical Instrument Corporation
            Date: circa 1910
            Object number: 1997-1-0331
            shunt for Weston standard milli-voltmeter
            Weston Electrical Instrument Corporation
            Date: circa 1925
            Accessories: is an accessory of standard voltmeter (0531a)
            Object number: 0531b