Magnetic field indicator in chrome-plated metal case

Made:
1950-1970 in Chicago
maker:
Magnaflux Corporation
Magnetic field indicator in chrome-plated metal case by the

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Magnetic field indicator in chrome-plated metal case by the
Science Museum Group
© The Board of Trustees of the Science Museum

Magnetic field indicator in chrome-plated metal case by the Magnaflux Corporation, Chicago, Illinois, United States, 1950-1970. Consists of a small pivoted magnet controlled by a hair spring and attached to a pointer which moves over an arbitrary scale marked from -10 to +10,

Details

Category:
Electricity and Magnetism
Object Number:
1995-398
Materials:
glass, metal (unknown), chromium plated, nickel plated, copper (metal) and aluminium (metal)
Measurements:
overall: 18 mm x 60 mm x 67 mm, Wt. 0.075kg Est.
type:
indicator
credit:
Huntley, B.