SKU: 1447 This full featured, 4 function, drop-in decoder was originally designed to replace the early Atlas lighting boards. Since then several other manufacturers have adopted the same lighting board style making the A4X an excellent option for any HO locomotive with the large, tab connected lighting board. Included is our auto-adjusting BEMF for outstanding slow speed performance and hassle free set up. Also includes Quiet Drive for super quiet engine performance. A4X comes with on-board resistors for LED's. Attached is an harness terminating in a 2-Pin Quick Connector for use with A TCS Keep Alive™.

Dimensions: 0.682" x 2.85" x 0.155" or 17.32mm 72.39mm 3.94mm

Main Features of this Decoder

• Back EMF Load Compensation for superior slow speed control even with heavy loads.
• Quiet Drive creates SUPER QUIET engine performance.
• Autodetect for realistic throttle response when using DC power.
• Dimmed Brightness of bulbs or LEDs is adjustable.
• Variable Momentum lets you make custom acceleration curves.
• Ditch Lights: control alternating ditch lights with realistic pulsing.
• Mars, Gyra, and Rotary Beacon are adjustable.
• Decoder Lock for programming same address decoders independently.
• Function Remapping: 13 buttons for most lights, 7 buttons for operations.

Some Other Features of This Decoder Include:

• Function Remapping
• 3 Point Acceleration/Deceleration Curves
• Button Control of the Motor
• Loadable Speed Tables
• Various lighting effects
• Decoder lock