Abstract: Apparatus for recording or reading information on a rotating information disc (19) comprises a turntable (11) journalled in a deck plate (1), which comprises a centering member (13), and a clamping device (21) for clamping the information disc onto the turntable. The clamping device comprises a support (5), which is movable between an operating position and a rest position, and a disc pressure member (23) coupled thereto. A flat electric drive unit (31) arranged in the clamping device serves for rotating an information disc placed on the turntable and comprises a stator section (35) which is secured to the support and a rotor section (33) which is secured to the pressure member.

Abstract: A strip of electrically insulating foil (15) is subdivided into successive foil parts (23) separated by folding lines (21) and folded against each other along the folding lines. Each foil part has on one of its major surfaces a conductor track (25) which forms a curved meander-like line extending in a number of pole-forming curves (33) connected by connection members (31). The conductor tracks (25) on the foil parts (23) are connected together by connection tracks (27). The curves (33) cooperate with the connection tracks (27) and the connection members (31) to form coils arranged in a circle. The winding is particularly suitable as a stator winding for a flat direct current motor.