B-MB4

This motherboard is designed to replace the existing circuit board in a Bachmann Richmond 4-4-0. This board is designed to receive a WOW121 or EU621 decoder and provides an onboard KA2 and a 21-pin connector for quick decoder installation. The B-MB4 is an overall universal design, making it a great choice for brass models.

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.