- 1Layout of GEC Traction offices, and electrical equipment details (GEC/2/2/1/42)
1973-1978, file - 2Equipment case arrangements, details and wiring diagrams (GEC/2/2/1/43)
1976-1980, file - 3Motor and trailer bogie arrangements and details (GEC/2/2/4/2)
c 1950, file - 4Cupboard layouts and cable arrangements (GEC/2/2/1/46)
1974-1976, file - 5Mixed UK and overseas electrical equipment layouts (GEC/2/2/4/3)
1953-1966, file - 6Control apparatus and wiring diagrams (GEC/2/2/4/5)
1959-1961, file - 7Connection diagrams and equipment frames (GEC/2/2/1/47)
1973-1979, file - 8Bournemouth trailer units wiring diagrams (GEC/2/2/1/48)
1974-1975, file - 9Wiring diagrams and mechanical details (GEC/2/2/3/5)
1962-1979, file - 10Class 91 wheel issues and modifications and other mechanical details (GEC/2/2/1/49)
1986, file - 11Equipment layout and wiring diagrams (GEC/2/2/3/6)
1960-1986, file - 12Office layouts, pantograph equipment details and mini tram general outlines (GEC/2/2/1/50)
1974-1980, file - 13Master controller and wiring diagrams (GEC/2/2/3/7)
1961-1989, file - 14Electrical control apparatus, wiring diagrams and equipment layouts (GEC/2/2/4/6)
1971-1989, file - 15Overseas railways electrical control apparatus and wiring diagrams (GEC/2/2/4/7)
1941-1957, file
