This is an easy decoder upgrade for your Bachmann HO Sound Value steam models. The TSU-BH2 offers 8-function outputs and an easy install. Just replace the Sound Value decoder and enjoy all of the Tsunami2 features you love! This decoder is designed to replace the factory board in the following HO Bachmann Sound Value Steam Models: 2-6-0, 2-8-0, 4-6-2, 4-8-4 Class J, GS4 and more.

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