Soundtraxx / The TSU-1100 Steam Prototypes is a micro 1-amp, universal-style digital sound decoder. It is ideal for small models with minimal space. It includes an optional capacitor or can be wired to a CurrentKeeper (P.N. 810140) to maintai (Scale=ALL) YankeeDabbler Part # = 678-884006
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I installed the decoder in a Bachmann on30 Shay prefect fit. Excellent product/ easy install/ and great service for Yankee Dabbler
Outstanding quality... and small but powerful!