soundtraxx 885016 snd decoder diesels

SoundTraxx -- TSU-PNP Digital Sound & Control Board-Replacement Decoder - Tsunami2 -- Baldwin & Other Diesel Sounds - Fits Atlas, Athearn, Intermountain & Others -- This SoundTraxx TSU-PNP Tsunami2 Digital Sound & Control Decoder 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 . The TSU-PNP includes a connector to easily add a CurrentKeeper 678-810140 to maintain performance over dirty track and switches.