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ca. 1930 - 150 cm diam., 12 Ga., copper spheres by spinning on lathes for the measurement of man-made 2,000,000 volt impulses

SPINNING METALS

E&MP 72.026

Artificial Lightning

ca. 1930

The making of 150 cm diam., 12 Ga., copper spheres by spinning on lathes for the measurement of man-made 2,000,000 volt impulses.

Story prepared from American Machinist of Feb. 27, 1930 for use with front cover illustration of SNL.

Yn

also: High Resolution and CD 2055086 E&MP10.004 1937

additonal text found

TAKES COPPER’S JOB
Because of its ability to resist wear, withstand great amounts of heat and carry heavy electrical loads without softening. Cupaloy was used for the current collecting rings on this generator rotor which delivers a current of 150,000 amperes.

Original Caption by Science Service
General Electric



National Museum of American History

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