72232415
Nov 9, 1965
Jan 3, 1967
COMPLETELY SOLID STATE (USING SILICON CONTROLLED RECTIFIERS) ELECTRONIC CONTROL UNIT PROVIDING STEPLESS PROPORTIONAL POWER CONTROL, DELIVERING A LARGE POWER OUTPUT FROM A MICROVOLT INPUT CONTROL SIGNAL AND USED TO CONTROL POWER TO MELTING FURNACES, ELECTRIC BOILERS, AND SPACE HEATERS
Housewares and Glass