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Bachmann 36-569 21 pin DCC Decoder for Class 90 with servo control | SAT Model Rail
The Class 90 is the first British outline electric locomotive to feature a servo motor-operated Pantograph which can be raised or lowered when using Digital Command Control (DCC). To operate the pantograph, a DCC decoder which is configured for servo motor operation must be used. Damage to the servo motor that operates the pantograph will occur if a standard decoder is fitted.