Decoders and Accessories

This motherboard is designed to replace the original lighting board in Atlas and Kato diesel locomotives. Included with this motherboard is a KA4 Keep Alive® for smooth operation over troublesome tracks. Pair with a WOW121 for unparalleled sound and...

This motherboard is specifically designed to replace the original lighting board in the Walthers Mainline GE ES44 "GEVo" diesel locomotive. Included on this motherboard is a KA2 Keep-Alive™ for smooth operation over troublesome tracks. Pair with a...

The IMD4 is a N-scale drop-in decoder which is designed for InterMountain locomotives. Examples include the following: InterMountain:SD40-2W See the installation pages for a full list of compatible engines! Back EMF Load Compensation:...

The K7D4 is a 4-function N-scale drop-in decoder designed to fit Kato locomotives. Examples include the following:Kato:ACS-64EMD SPD40FGe 4/4 II and III "Glacier Express"See the installation pages for a full list of compatible engines!Back EMF Load...

The K0D8 is a N-scale drop-in decoder for Kato locomotives. Examples include the following: Kato:E7A See the Installation Pages for a full list of compatible engines! Note: The K0D8 line of decoders are available with different lighting...

The A6X is six function HO-scale "drop-in" style mobile decoder with integrated 1.5V power supply for Atlas, Athearn, Kato, etc. locomotives. Examples include the following: Athearn:F59PHIF3Atlas:RS-1/RS-3/RS-11C424GP7Kato:GP35 Back EMF Load...

The M1 is a small form factor hard-wire decoder with 2 lighting functions for HO-scale and N-scale installations. This decoder is designed for installations where space is limited. This decoder is also available with 8-pin NMRA plugs or Keep Alive®...

The MC4 is a 4-function HO and N scale hard-wire decoder with a 7 pin JST socket. The MC4 is designed for use in locomotives where a T-series or M-Series decoder is too large, and more than 2 lighting functions are needed. The MC4 is great for use in...

The A4X is four function HO-scale "drop-in" style mobile decoder for Atlas, Athearn, Kato, etc. locomotives. Examples include the following:Athearn:F59PHIF3Atlas:RS-1/RS-3/RS-11C424GP7Kato:GP35See the installation pages for a full list of compatible...

This full featured, 2 function, Direct Plug decoder is designed to easily plug into a vast array of locomotives with 8Pin NMRA Sockets. The 8-Pin NMRA plug built directly into this decoder make installation a snap. Included is our auto-adjusting BEMF for...

This full featured, 2 function, Direct Plug decoder is designed to easily plug into a vast array of locomotives with 8Pin NMRA Sockets. The 8-Pin NMRA plug built directly into this decoder is rotated 90 degrees to allow for easy installation in many UK...

The A4X is four function HO-scale "drop-in" style mobile decoder for Atlas, Athearn, Kato, etc. locomotives. Examples include the following: Athearn:F59PHIF3Atlas:RS-1/RS-3/RS-11C424GP7Kato:GP35 See the installation pages for a full list...

The MC2 is a 2-function HO and N scale hard-wire decoder with a 7 pin JST socket. The MC2 is designed for use in locomotives where a T-series or M-Series decoder is too large. This decoder may be hard-wired, but is also available with 8-pin NMRA plugs...

The DP2X-UK is a HO-Scale direct-plug decoder designed for engines equipped with 8-pin NMRA (NEM652) sockets. By far one of the easiest decoders to install, the DP2X-UK can be plugged into many locomotives with no effort. In contrast to the standard...

This full featured, 2 function, Direct Plug decoder fits the Life Like FA1 as well as other Life Like locomotives with a headlight and a seperate mars light. Included is our auto-adjusting BEMF for outstanding slow speed performance and hassle free set...

This motherboard is designed to replace the existing circuit board in a Walthers Proto 2000 Heritage 0-6-0 and 0-8-0. This board is designed to receive a WOW121 or EU621 decoder and provides an onboard Keep Alive® for uninterrupted performance over...

This motherboard is designed to replace the existing circuit board in a Bachmann Heavy 4-8-2. This board is designed to receive a WOW121 or EU621 decoder and provides an onboard Keep Alive® (KA2 style) for uninterrupted performance over troublesome...

This motherboard is designed to replace the existing circuit board in a Bachmann Baldwin 2-8-2. This board is designed to receive a WOW121 or EU621 decoder and provides an onboard Keep Alive® (KA2 style) for uninterrupted performance over troublesome...

This motherboard is designed to replace the original lighting board in Bachmann steam engines including the K4 steam. Included on this motherboard is a KA3 Keep Alive® for smooth operation over troublesome tracks. Pair with a WOW121 for unparalleled...

This motherboard is designed to replace the original lighting board in Bachmann steam engines including the 4-6-0. Included on this motherboard is a KA3 Keep Alive® for smooth operation over troublesome tracks. Pair with a WOW121 for unparalleled sound...

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.  Newly-redesigned at half the size of a KA3, the KA1 will power HO or N scale locomotives with...

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.  Newly-redesigned at half the size of a KA4, the KA2 will power HO or N scale locomotives with...

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 WAUX-KA4 will power an HO-Scale locomotive with headlights on for approximately 6 to 20 seconds...

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 WAX-KA3 will power an HO-Scale locomotive with headlights on for approximately 6 to 20 seconds...

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 KA4-C will power an HO-Scale locomotive with headlights on for approximately 6 to 20 seconds (depending...

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 charging...

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 KA3-C will power an HO-Scale locomotive with headlights on for approximately 6 to 20 seconds (depending...

The T4-LED has added Blue and Black/White wires for the use of a KeepAlive device. The T4-LED is a multi-purpose HO-scale decoder. This decoder may be hard-wired or plugged directly into any locomotive with a 9-pin JST plug. The on-board resistors on...

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 KA4 will power an HO-Scale locomotive with headlights on for approximately 6 to 20 seconds (depending...

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 charging...

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.  Newly-redesigned and coming in at half the size of a KA3, the KA1 will power HO or N scale...

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.  Newly-redesigned and coming in at half the size of a KA4, the KA2 will power HO or N scale...

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.  Newly-redesigned and coming in at half the size of a KA4, the KA2 will power HO or N scale...

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 Keep-Alive® includes a 2-Pin Quick Connector Harness for plugging into decoders with a compatible...

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 charging...

D13J Decoder - new smaller replacement for D13SRJ Dimensions: 1.03 x 0.630 x .185 inches – 26 x 16.5 x 4.7 mm Direct plug in to Athearn and other locos equipped with NMRA 9 pin DCC “Quick Plug” Silent Running,torque compensated...

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.  Newly-redesigned at half the size of a KA4, the KA2 will power HO or N scale locomotives with...

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 KA3 will power an HO-Scale locomotive with headlights on for approximately 6 to 20 seconds (depending...

This function-only decoder is designed for any scale where extra lighting features and functions are needed. This decoder includes a 6-pin harness for easy installation and wiring. These decoders are commonly used for smoke coils. Note: FL-series...

This function-only decoder is designed for any scale where extra lighting features and functions are needed. These decoders are commonly used for smoke coils, fireboxes, or step lights. Note: FL-series decoders do not provide motor control. A...

The Analog Filter 1 (AF1) is used to filter the DC signal leaving the power pack. This filter pack corrects flickering in lighting effects and low-speed auto-reversing. Only one AF1 is required to smooth out the operation of all of the locomotives being...

The BSM-2 Switch Controller from TCS is a single-output switch controller designed for two turnouts simultaneously, such as single-crossovers. This decoder can be found in current-generation DCC E-Z Track® from Bachmann Trains Inc. The decoder can be...

The K4-LK is a function-only lighting expansion board which has been designed to be installed into the KATO N-scale MP36PH. This board has three hookup wires - One RED Anode(+) wire (center) and two GREEN function wires(-). Simply solder the wires...

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 KA-N1 can power an N-scale locomotive for 1-2 seconds over dirty track and power interruptions...

The BSM-1 Accessory Decoder from TCS is a single-output switch controller designed for single turnouts, including wyes. This decoder can be found in current-generation DCC E-Z Track® from Bachmann Trains Inc. The decoder can be installed as a drop-in...

Never wire another resistor for 1.5v bulbs! The VR1.5 can be used with any decoder to supply a 1.5V regulated supply for all of your light bulbs. To use the VR1.5, connect the Blue wire to the 12V power supply from your decoder (BLUE), and connect...

No more using screwdrivers or stressing over trying to remove WOW121 decoders from WOWMotherboards. With the Decoder Ejector a hard and tedious task is made easy!How to Use ItSimply place the Decoder Ejector underneath a WOW121 or other 21-pin decoder...