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multiplier for A.C. voltmeter
multiplier for A.C. voltmeter

multiplier for A.C. voltmeter

Datelate 19th-mid 20th Century
Inventory Number0271b
ClassificationMultiplier
Subject
    Maker General Electric Company 1892-present
    User Harvard Engineering School 1918 - 1951
    Cultural Region
      Place of Origin
        Place of Use
          Dimensions7.1 × 25.4 × 24.6 cm (2 13/16 × 10 × 9 11/16 in.)
          Material
            Accessoriesfor voltmeter (0271a)
            DescriptionA portable, rectangular multiplier, housed in a perforated metal case mounted on an aluminum, four-footed base. Instrument has 24 resistance cards within and 4 binding posts on the base. The posts are labeled with round metal labels for voltage range, and have their corresponding resistance values in ohms on plaques below on the base: marked, 0 - 75 (253.2 ohms) - 150 (521.4 ohms) - 300 (1057 ohms).

            Instrument has a leather carrying handle on the side.
            Signedmarked on instrument: MULTIPLIER No 337238 GENERAL ELECTRIC C0 SCHENECTADY N.Y. U.S.A.
            Inscribedrectangular plaque marked: Harvard University
            FunctionMultipliers extend the range of voltmeters.

            This multiplier is for use with voltmeter #0271.
            ProvenanceFrom the Harvard Engineering School. Removed to this collection 11/56.
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