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1961 - vacuum evaporation spheres

EVAPORATION SPHERES

CD 1967036 E&MP52.116

Electronics

1961

View of a vacuum evaporation spheres at General Electric's Lynchburg (Va.) Operation with half of a sphere lined with aluminum discs exposed in right foreground.

Carefully prepared aluminum discs are held to inside surface of sphere by specially prepared magnets.

Geometric symmetry of the spheres results in uniform quality.  


Original Caption by Science Service
General Electric



National Museum of American History

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