reversing switch, D.P.D.T.
Datelate 19th-early 20th Century
Inventory Number0378
ClassificationSwitch
Subject
Maker
American
?
User
Department of Physics, Harvard University
founded 1884
Cultural Region
Place of Use
Dimensions6.4 x 16.8 x 20.1 cm (2 1/2 x 6 5/8 x 7 15/16 in.)
Material
DescriptionA lever reversing switch, two wiping contacts and two spring contacts. On large wood base, 4 knob feet and four binding posts.
Signedunsigned
Inscribedin red paint on side 378;
engraved atop base 7-26
FunctionFor reversing the poles on a circuit. (D.P.D.T. stands for double-pole, double throw).
ProvenanceFrom the Physics Department, Harvard University.
American
Date: late 19th-early 20th Century
Accessories: tilting arm (0380b)
Object number: 0380a
American
Date: late 19th-early 20th Century
Accessories: goes with reversing switch (0380a)
Object number: 0380b
American
Date: late 19th-early 20th Century
Object number: 0390
Department of Chemistry, Harvard University
Date: late 19th-early 20th Century
Object number: 0389
Date: late 19th-early 20th Century
Object number: 0379
Morris E. Leeds & Company
Date: 1899-1903
Object number: 0386
American
Date: late 19th-early 20th Century
Object number: 0391
