BTH Electric Traction Equipment, Trolleybus Operating & Maintenance Instruction Book Wolverhampton Corporation, June 1940, re TB 282-285, Foreword, General Description of Control Scheme, Control Gear Maintenance Instructions, Master Controller and Reverser, Main Contactor, Shunt Field Contactor, Over Voltage Relay, Brake Relay, Timing Relay, Auxiliary Relay, Main Resistors, Shunt Field Resistors, Circuit Breakers, Data Sheets, Maintenance Instructions, + 20″ x 30″ Connection Diagram for Trolley Bus Control with Regenerative and Rheostatic Braking on Brake Pedal, X1362/86, soft covers creased at edges
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