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no date - Anne pushes a button and the G-E Electronic heater goes to work converting ordinary 60-cycle electric current to 500,000-cycle current and in three and one-half seconds the surface of the bushing has reached a red glow temperature of 1550 degrees Fahrenheit

ELECTRONIC HEATER

E&MP52.023

Electronics

no date

Next Anne pushes a button and the G-E Electronic heater goes to work converting ordinary 60-cycle electric current to 500,000-cycle current and in three and one-half seconds the surface of the bushing has reached a red glow temperature of 1550 degrees Fahrenheit.

related image 52.025

Original Caption by Science Service
General Electric Company



National Museum of American History

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