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Lum, J. Y.

Publications and source records attributed to Lum, J. Y..

Soldering iron temperature is automatically reduced

Hinged cradle-microswitch arrangement maintains a soldering iron at less than peak temperature when not in use. The microswitch introduces a voltage reducing element into the soldering iron power circuit when the iron is placed on the cradle. The iron, when removed from the cradle, returns to operating temperature in 15 to 30 seconds.

Lum, J. Y.↗