Maintenance Of Electrical Signalling Equipment (1958)
Staff Instructional : Signals and Telecommunications Series

Part 1: Outside Equipment - 26 minutes
The lineman and his assistant inspecting and adjusting electrical signal equipment.

Part 2: Outside Equipment - 18 minutes
Continuation of the work shown in Part 1.

Part 3: Equipment at the Box - 19 minutes
The adjustment and maintenance of electrical equipment inside the signal box.

16mm & 35mm

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