This Walthers Cornerstone 130' Motorized Turntable in HO Scale is a must - have for any model railroad enthusiast. With an overall diameter of 19 - 1/8' (47.8cm), it will surely be the centerpiece of your HO Scale engine terminal. It's large enough to turn big engines like the 4 - 8 - 8 - 4 Big Boy. This turntable is typical of those built since the 1900s, and some are still in use today. It can hold locos up to 18 - 7/8' (46.1cm) long and fits most engine terminals. The user - friendly, illustrated instructions make operation and programming a breeze. It comes with layout mounting templates for the pit and the Cornerstone Turntable Control Box. The included Control Box works with both DC and DCC train control systems. The new Cornerstone Turntable Control Box offers programmable indexing for up to 99 tracks, one - touch 180 - degree bridge rotation, and a simplified LED display with adjustable brightness. You can operate it from up to four remote locations with additional Control Boxes (sold separately). It comes with a motor and Control Box, runs on 12 - 18v AC or 16 - 24v DC power (power supply not included), and has Code 83 rail installed on the bridge. It requires an 18 - 1/4' (45.6cm) mounting hole. Optionally, you can buy the Cornerstone Advanced Control Module to control it with a DCC throttle or serial UART controller.

Using this turntable is easy. First, make sure you have the right power supply. It operates on 12 - 18v AC or 16 - 24v DC, but the power supply isn't included. Follow the user - friendly, illustrated instructions to set up the turntable and program the Control Box. You can program it for up to 99 different tracks and use the one - touch 180 - degree bridge rotation feature. You can even operate it from up to four remote locations if you buy additional Control Boxes. When mounting, use the provided layout mounting templates for the pit and the Control Box. The turntable needs an 18 - 1/4' (45.6cm) mounting hole. As for maintenance, keep it clean from dust and debris. If you notice any issues with the motor or the Control Box, refer to the instructions or contact customer support. If you want to control it with a DCC throttle or serial UART controller, you'll need to buy the Cornerstone Advanced Control Module separately.