TCS 1634, B-MB7 WOWMotherboard for Bachmann HO Steam Locomotives Including the PRR K4

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.

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

PLEASE 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.

Please Note: While this board is equipped with resistors, an additional 1K external resistor is required when using a single LED on any lighting output.