pointer galvanometer
Date: 1930-1950
Inventory Number: 1997-1-0349
Classification: Galvanometer
Subject:
Maker: Leeds & Northrup Company (1903 - 1995)
User: Harvard University Department of Physics (founded 1726)
Cultural Region:
Place of Origin:
City of Use:
Dimensions:
9.6 × 7.2 × 11.7 cm (3 3/4 × 2 13/16 × 4 5/8 in.)
Description:
A galvanometer in a rectangular bakelite case. Instrument has two binding posts, with knurled edges, a circular knob centered on the instrument face labeled, "Leeds & Northup Co. Philadelphia," and a round, silver knob with an arrow labeled, "CLAMP." Instrument has a slightly curved, generally rectangular instrument display window, through which a scale can be seen, labeled, -10-0-+10, and "MADE IN U.S.A."
An inscription stamped on the side of the instrument cannot be read in this view.
An inscription stamped on the side of the instrument cannot be read in this view.
Signedstamped on front knob: LEEDS & NORTHRUP CO.;
raised letters on side: THE LEEDS AND NORTHRUP CO / PHILADELPHIA / MADE IN U.S.A.
raised letters on side: THE LEEDS AND NORTHRUP CO / PHILADELPHIA / MADE IN U.S.A.
Inscribedon instrument scale: MADE IN U.S.A.
FunctionFor detecting electrical current in a circuit.
ProvenanceFrom the Physics Department, Harvard, Jan 1981.