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1933 - Westinghouse research engineers expect the ignitron principle to revolutionize present methods of conversion and control of electrical energy

CONTROL OF LARGE ELECTRIC CURRENT

E&MP 43.007

Electrical Engineering

May 17, 1933

The "ignitron" mercury tube in which a tiny current applied to a pencil lead can control currents in an electric arc a million times greater, is shown with Leon R.Ludwig who with Dr.Joseph Slepian discovered the new control.

These two Westinghouse research engineers expect the "ignitron" principle to revolutionize present methods of conversion and control of electrical energy.


PHOTO ## 216628


Original Caption by Science Service
© Westinghouse



National Museum of American History

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