Snapshots of the vertical velocity, U_z (left) and the toroidal magnetic field, B_y (right) in different planes of the domain, for Run T04c in the kinematic phase. The vertical slices correspond to the yz (left side of the box) and xz (front of the box) planes. The top plane corresponds to the horizontal boundary between the convective and the cooling layers at z = d and the plane shown below the box corresponds to the base of the unstable layer (z = 0).