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Product Description
Used extensively throughout the London Underground system for shunting, sidings etc. Two disks are supplied along with the retention pieces, on the same sprue. Simply slide the disk shaft through the body and poor a tiny dab of super glue at the projecting end in back of the body to hold the retaining piece. With the use of the actuator mechansm, this disk can be operated by a small servo motor. Also, by using a very small LED in the light shroud, the disk can be illuminated. Use: http://www.ebay.com/itm/15-pcs-Pre-Wired-Warm-White-0402-SMD-LEDs-Lighting-Kits-Pre-soldered-Micro-LEDs-/151901572329?hash=item235e0a0ce9
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