An Associated Electrical Industries Limited advert from November 1961 noting that all the power equipment, including the Sulzer diesel engines, was supplied by AEI for the 25 1250hp locos being built at Darlington. D5151, the first of these locos - which would become Class 25s - is pictured.
This advert appears in the following categories: Traction: Class 25 ; Supplier: Associated Electrical Industries ; Component: Diesel Engines (Power Unit) Control Equipment