Abstract: A high frequency water cooled transformer for coupling a power source to an induction heating coil and which serves to convert the output of the power source into values appropriate for the induction heating coil, and to match the impedance of the power source with the impedance of the heating coil for maximum power transfer efficiency. The primary of the transformer is adapted to be connected to the power source and the secondary is adapted to be connected to the induction heating coil. The transformer includes a secondary formed of two parallel self-supporting elongated open-ended hollow electrically conductive cylindrical members. A pair of electrically conductive terminal blocks are respectively mounted on one of the ends of the cylinders and electrically connected to the cylinders. The primary winding is wound longitudinally through the two secondary cylinders, and the ends of the primary winding are connected to appropriate terminal pins.

Abstract: A clamp assembly includes a yoke having a rectangular configuration and circumscribes a rectangular space, and a pair of spaced electrically conductive terminal bodies mounted in the rectangular space of the yoke. The terminal bodies are adapted to be connected to corresponding electrical terminals of an induction heating machine. A clamp pad is slidably mounted in the rectangular space of the yoke and is moveable vertically toward and away from the tops of the terminal bodies. An induction coil assembly including a hollow induction coil and a pair of spaced parallel elongated terminal bars is provided, with the terminal bars removably clamped between the clamp pad and the tops of the terminal bodies.