Decoders and Accessories

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...

HO-scale, 4-function decoder that measures 25 x 16 x 6mm with a 9-pin JST to 8-pin NMRA wiring harness that can be used in many DCC-ready models that have an NMRA 8-pin socket. This decoder will operate in both DC and DCC.Dimensions: 25 x 16 x 6mmMax...

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...

Z/N-scale, 2-function decoder that measures 13 x 9 x 3mm with an attached wire harness, or ‘squid cable,' for easy installation in some Z and most N-scale models. This decoder will operate in DCC only.Dimensions: 13 x 9 x 3mmMax. Motor Stall Current:...

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...

HO-scale, 4-function decoder that measures 25 x 16 x 6mm with a 9-pin ‘universal’ JST wiring harness that is mostly used in older pre-DCC or brass models. This decoder will operate in both DC and DCC.Dimensions: 25 x 16 x 6mmMax. Motor Stall Current:...

Z/N-scale, 2-function decoder that measures 13 x 9 x 3mm and is available with a 6-pin NEM651 connector popular in many European models. This decoder will operate in DCC only.Dimensions: 13 x 9 x 3mmMax. Motor Stall Current: 1A Max. Function...

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...

HO-scale, 4-function decoder that measures 74 x 17 x 3mm designed to replace the existing manufacturer light board in Atlas HO diesel models, some InterMountain Railway models, and those using a similar physical design. This decoder will operate in both...

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...

HO-scale, 4-function decoder that measures 25.1 x 15.6 x 4.7mm. This decoder has a 21-pin connector arranged according to the NMRA Standard that easily plugs into the factory-installed PCB of many models. This decoder will operate in DCC only.Dimensions:...

HO-scale, 2-function decoder that measures 17 x 17 x 7mm in a plug-and-play format suitable for use with a variety of models. It is manufactured with an NMRA compatible 8-pin ‘direct-plug.' This decoder will operate in DCC only.Dimensions: 17 x 17 x...

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...

This adapter allows you to use our smallest decoder (The TSU-N18) in practically any n-scale model! Bring the TSU-N18's 6 functions plus a narrower profile to your models. The JST-Next18 Adapter features a Next18 socket to simply plug-in your TSU-N18...

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...