SKU: 1557
$43.95 Buy Now

    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.

    Dimensions: 1.92” x 1.05” x .48” or 48.64mm x 26.7mm x 12.2mm
    Scale: HO Scale
    Motherboard Literature
    Download B-MB4.pdf (466.97 KB)
    Wiring Diagram

    One Year Goof Proof Warranty

    All decoders are covered by a one year goof proof warranty. Please return in a small box.
    You MUST register the failed decoder on our website at tcsdcc.com/warranty
    Follow the instructions on the website before returning any decoders to TCS.