inductance standard
Datecirca 1915
Inventory Number0479
ClassificationInduction Coil
Subject
User
Department of Physics, Harvard University
founded 1884
Maker
Cruft Laboratory, Harvard University
?
founded 1914
Cultural Region
Place of Origin
Place of Use
Dimensions21.2 × 22.2 × 17.2 cm (8 3/8 × 8 3/4 × 6 3/4 in.)
Material
DescriptionFrom Instrument Card: "Inductance Standard...Class tube 2 7/8" in diameter mounted in a hard rubber frame (wood bottom) with connection strips attached at its top. Coils are wrapped around the glass tube, and attached to two small binding posts on the inside top of the frame".
Signedengraved on top: STANDARD INDUCTANCE/ CRUFT LABORATORY / TYPE G NO 2
Inscribedin pencil on frame: 126 TURNS / G = 0.458m
Curatorial RemarksMay have been made in the Cruft Laboratory, or just used there.
FunctionStandard of inductance. Used for teaching.
ProvenanceFrom Cruft Attic antiques closet '65, Harvard University Physics Department.
Historical AttributesTriangle indicates that this instrument was used for teaching in the Physics Department, Harvard University. Course Physics 3.
Department of Physics, Harvard University
Date: circa 1895
Accessories: goes together with coil # 0494
Object number: 0493
Department of Physics, Harvard University
Date: circa 1895
Accessories: goes together with coil # 0493
Object number: 0494
Department of Physics, Harvard University
Date: late 19th-early 20th Century
Object number: 0148
Department of Physics, Harvard University
Date: mid 20th-late 20th Century
Accessories: variety of spare coils (in 2004-1-0408c); samples to be placed inside coil (2004-1-0410)
Object number: 2004-1-0408b
Department of Physics, Harvard University
Date: 1930-1940
Accessories: bakelite case
Object number: 0448
Department of Physics, Harvard University
Date: ca. 1920-1940
Object number: RS0727
Department of Physics, Harvard University
Date: late 19th-early 20th Century
Object number: 0504
Department of Physics, Harvard University
Date: mid 20th-late 20th Century
Accessories: variety of spare parts cataloged as 2004-1-0408c-g
Object number: 2004-1-0408a
