HO SD9 GN #580 DCC SOUND For Cheap
$132.50Introduced in February 1952 and produced through November 1953, the SD7 was the 1500HP six axle big brother to the GP7. Riding on six axles, three-motor trucks, they were designed to offer more starting tractive effort in road service than the GP7. EMDs introduction of an A1A freight locomotive led them to design the SD7…