This service and repair manual provides a comprehensive circuit diagram for the Champion 887 / 851 3 Receiver. This manual is a valuable resource for technicians and enthusiasts alike, offering detailed insights into the inner workings of this classic radio. The Champion 887 / 851 is a four-valve (including rectifier) receiver, capable of receiving three wavebands. It is a transportable, compact receiver featuring an internal ferrite rod aerial. This manual will enable you to understand the complex circuitry of the receiver and troubleshoot any potential issues.