Class 770 are Co-Co diesel electrics rated at 993 kW, 1332 hp and have a
top speed of 90 km/h, 56 mph. Over 8000 of these locomotives were built by
ČKD and were exported to the Soviet Union and around the world. 111 were
built for mainline use in Czechoslovakia from 1963 as well as 57 more for
industrial service (39 by ČKD & 18 by SMZ in Slovakia).
770 506-4 was built by ČKD in 1979 (serial number 11219) as T669.0506 for MUS (Mostecka uhelna spolecnost) in Most.
OKD-Doprava 770 506-4 at Paskov on Wednesday June 29th, 2005.