Marklin HO 60975 mSD3 Sound Decoder Steam

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This decoder is for converting Märklin/Trix H0 locomotives with built-in high-efficiency motors or other DC motors. The märklin SoundDecoder mSD3 has a 21-pin 21mtc (adheres to NEM 660) interface connector and an accompanying interface connector circuit board for converting analog and digital locomotives.The märklin SoundDecoder mSD3 supports the digital formats mfx, MM1, MM2, and DCC.The decoder has preset sound for a steam locomotive. Show more