This N scale decoder is designed to replace Atlas style light boards in newer locomotives. AMD4
This full featured 4 function BEMF decoder is designed for the following Atlas N Scale engines: B23-7, B30-7, B36-7, C628, C630, Dash8-32BW, Dash8-40B, Dash8-40BW, RS-11 and GP-38. It also fits the DCC Ready versions of the following: GP-40, GP-40-2, SD-7, SD-9, SD-35, TrainMaster, U25B, and C-420. Included is our auto-adjusting BEMF for outstanding slow speed performance and hassle free set up. Also includes Quiet Drive for super quiet engine performance.