JAMA. 1948;138(15):1097. doi:10.1001/jama.1948.62900150008007a.
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GENERAL ELECTRIC CRYSTAL CONTROLLED MODEL D INDUCTOTHERM ACCEPTABLE  Manufacturer: General Electric X-Ray Corporation, 4855 W. McGeoch Avenue, Milwaukee 14.The Model D Inductotherm is a high frequency generator of electric energy designed for production of heat within human tissues by means of electromagnetic induction. The application to the human body can be made with either the cable or the disk electrodes, both of which are available.The height of the unit is 109 cm. (43 inches). The other dimensions are 50 by 66 cm. (19½ by 26 inches). The shipping weight is 200 Kg. (441 pounds). For operation it requires alternating current at 100 to 130 volts and 15 amperes. The power input is stated to be 1,800 watts and the output over 200 watts at 13.56 megacycles per second. Accessories include a flexible arm, a disk electrode, a cable electrode, a wall rack and a space set.The Federal


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