DCC Accessories

Decoder Buddy from Nix Trainz is a 21-pin-friendly replacement motherboard for the standard factory-supplied DCC 8-pin loco motherboard in many locomotives. It allows you to take full advantage of all the functions and features of the latest decoders...

Lets you share decoders among locomotives 2” wires from Digitrax plug to DCC 8 pin plug Fits many HO locomotives with 8 pin socket

NOTE: This product utilizes a specific plug harness which may not be compatible with all decoders. TCS Keep-Alive® (KA) devices are used to supply power to decoders during times of power interruption due to dirty track or problematic track work...

NOTE: This product utilizes a specific plug harness which may not be compatible with all decoders. TCS Keep-Alive® (KA) devices are used to supply power to decoders during times of power interruption due to dirty track or problematic track work...

NOTE: This product utilizes a specific plug harness which may not be compatible with all decoders. TCS Keep-Alive® (KA) devices are used to supply power to decoders during times of power interruption due to dirty track or problematic track work...

NOTE: This product utilizes a specific plug harness which may not be compatible with all decoders. TCS Keep-Alive® (KA) devices are used to supply power to decoders during times of power interruption due to dirty track or problematic track work. This...

TCS Keep-Alive® (KA) devices are used to supply power to decoders during times of power interruption due to dirty track or problematic track work. The KA5 includes an additional fifth supercapacitor, increasing the maximum capacity...

The WAUX-KA5 is designed for use with the TCS WOW101 ONLY TCS Keep-Alive® (KA) devices are used to supply power to decoders during times of power interruption due to dirty track or problematic track work. The KA5 includes an additional...

TCS Keep-Alive® (KA) devices are used to supply power to decoders during times of power interruption due to dirty track or problematic track work. The KA5 includes an additional fifth supercapacitor, increasing the maximum capacity and peak...

 The Decoder Buddy Mini was developed to fit into smaller steam and diesel applications.  There has also been interest in HOn3 and S-Gauge applications. 

With the abundance of lighting functions and wanting to see and check them before I placed the shell on the frame, I decided I needed a way to see what was happening!  I went to work and prototyped a small connector board with LEDs so I could...

1k ohm resistors The Decoder Buddy was developed for the 8 output decoders. This mother board does not include the 21-Pin Decoder. This mother board requires soldering. This printed circuit board is NOT INTENDED FOR USE IN A DC SYSTEM.  However, if...

1k ohm resistors The Decoder Buddy Mini was developed to fit into smaller steam and diesel applications.  There has also been interest in HOn3 and S-Gauge applications. This mother board does not include the 21 Pin Decoder. This mother board...

  Keeps locos & sound running during power interruptions caused by dirty or bad track. Hold up time varies based on decoder load & track conditions. PX112-2 Plug ‘N Play Install on DH126 & DH166 Series Decoders PX Body Size 1...

  Keeps locos & sound running during power interruptions caused by dirty or bad track. Hold up time varies based on decoder load & track conditions. Use with Digitrax Series 6 Decoders with 10 pin sound harnesses such as SDH166D &...

 Digitrax 9 pin to DCC medium plug short harness (1”)