Disclosed are foil coil structures and methods for winding the same for stators in electrodynamic machines, as well as electrodynamic machines that implement such coil structures. The oven includes a cavity receiving food; a convection assembly provided in plurality, each convection assembly including a heater that heats the food, and a fan blowing air heated by the heater toward the food; and at least one covering member covering at least one of the fans, wherein the fans have respective shafts that are different in height from a bottom surface of the cavity. The multiplication unit multiplies a gain coefficient input from the selection unit with a decoded monaural signal input from a monaural decoding unit to perform balance adjustment processing. The insulation layer is divided into a plural number of parts that are mutually discontinuous in the area under the semiconductor chip. A biasing device biases the follower side engaging element for engaging with the driving side engaging element.