Ceske drahy (CD)
Electric multiple units class 680
Current systems: 3 kV; 15 kV 16,7 Hz; 25 kV AC, 50 Hz

Detail of the roof, air condition units are seen clearly. The pantograph on the front cars works under DC voltagem while the pantograph on the seconf car is used for AC voltage systems. Taken on 3 July 2003 on the ZZO Cerhenice test circuit. Photo and scan: Petr Kaderavek (kade@email.cz)