With this cc-cc converter you will obtain in output a dual continuous tension, starting with a continuous tension of 12 Vcc. With this you will feed small circuits, filters, preamplifiers and so on. The circuit supplies an output tension of 15+15 Vcc and a maximum current of 0,2 amperes. It is fed by 12 Vcc and does not need calibration. It employs a transistor BC.237 and a mosfet P.467.