The Hornby Railways Zero 1 R951 Slave Control Unit is a speed regulator specifically designed for model railways in OO gauge. Manufactured by the renowned brand Hornby, this control unit allows users to adjust the speed of their trains with precision. With its sleek design and reliable performance, this model is a must-have for collectors and enthusiasts looking to enhance their model railway experience. Comes in original box and tested and working. See pictures.
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