B-MB7

This motherboard is designed to replace the original lighting board in Bachmann steam engines including the K4 steam. Included on this motherboard is a KA3 Keep Alive® for smooth operation over troublesome tracks. Pair with a WOW121 for unparalleled sound and interruption-free performance.

NOTE: This product does not function without a decoder. Pick up an EU621 or WOW121 decoder to use this product.

NOTE: TCS motherboards feature on-board resistors for use with LED's. This product is not intended for use with incandescent bulbs without modification or an external power supply such as the VR1.5.