decoder with pre-loaded Electric sounds. For use with existing 8 pin connector in locomotive 60982, mLD3 decoder with soldered on wires for the locomotive side. Male 8 pin connector included. 60985, mSD3 decoder (Steam) with soldered on wires for the locomotive side. Male 8 pin connector included. Separate wires for connection of included speakers 60986, mSD3 decoder (Diesel) with soldered on wires for the locomotive side. Male 8 pin connector included. Separate wires for connection of included speakers 60987, mSD3 decoder (Electric) with soldered on wires for the locomotive side. Male 8 pin connector included. Separate wires for connection of included speakers Maxi 1 gauge digital upgrade Maxi locomotives were always fitted with plug-in DELTA decoders, upgrading merely entailed exchanging the decoder. 60955 Decoder upgrade for Maxi locomotives. Motor regulation with 28 speed steps and adjustable parameters, 5 switched functions. See also Digital Command Control References Digital model train control