reflecting string galvanometer
Datecirca 1930
Inventory Number1997-1-0167
ClassificationReflecting Galvanometer
Subject
Maker
Leeds & Northrup Company
1903 - 1995
User
Department of Physics, Harvard University
founded 1884
Cultural Region
Place of Origin
Place of Use
Dimensions23.2 x 31 x 15.8 cm (9 1/8 x 12 3/16 x 6 1/4 in.)
Material
DescriptionGalvanometer with enclosed lamp and scale. Rectangular metal case with front panel scale with 100 divisions marked every millimeter and labeled on the top from 5-0-5 centimeters and on the bottom from 0-10 centimeters. The metal case has a black plastic front knob for zero adjustment. Rear of case has 3 binding posts with black plastic knobs mounted on plaque with specifications and one smaller knob. Power cord extends out from rear of case.
Signedon plaque on rear of case: CAT. NO. 2430-D SER. NO. 1511964 / SENS 00035 µA/mm CDRX 30000 m / RESIS 512 ohms PERIOD 3.3 Sec. / LEEDS & NORTHRUP CO., PHILA - MADE IN U.S.A.
Inscribedon plaque on rear of case (serial number): 1511964
FunctionGalvanometer with enclosed lamp and scale used as a null indicator of direction and intensity of electrical current.
ProvenanceFrom the Department of Physics, Harvard University.
Leeds & Northrup Company
Date: circa 1948
Accessories: power cord
Object number: 2000-1-0040
Leeds & Northrup Company
Date: circa 1950
Object number: 1997-1-1095
Leeds & Northrup Company
Date: circa 1920
Object number: 0551
Leeds & Northrup Company
Date: circa 1927
Accessories: none
Object number: 0538
Leeds & Northrup Company
Date: circa 1940
Object number: 0552
