The TSU-PNP is a universal factory board replacement sound decoder suitable for use in many manufacturer’s models such as those made by Atlas, Athearn, and InterMountain Models. It is
suitable for a wide variety of models from HO to S scale, and includes a connector to easily add
a CurrentKeeper (P.N. 810140) to maintain performance over dirty track and switches.
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Sound Selections for Tsunami2 for EMD Diesel Prototypes