Train Control Systems is the leader in DCC Decoder Design.

Welcome To TCS

Manufacturers of high quality DCC decoders.

Check out our Installation Pictures section for hundreds
of DCC decoder installations in tons of HO-Scale, N-Scale, and Z-Scale locomotives!

WOWSound® is Coming!

For those anticipating the upcoming release of our WOWSound® decoder line we are pleased to inform you that we are nearly on track with our development and still hoping to release them in May. Look for our ads in Model Railroader and Model Railroad News, and keep your eye on our website for updates and more sneak previews.
Want to get your decoder as soon as they are ready? Pre-order your sound decoder here!

Now Shipping K5D7!


Kato N-Scale F40PH	TCS K5D7

The Kato N-Scale F40PH is now shipping and TCS is ready with K5D7 drop-in decoder. This decoder includes an onboard LED for the Red Marker Board Lights and operates them automatically when running in reverse. Order your decoder now and enjoy your new locomotive!

Smaller Decoders with Onboard Keep-Alives™ and LED Resistors!

KAM-Series and KAT-Series Shown with T1 for size comparison.

The KAM4 is also available with an 8-Pin NMRA plug attached!


KAM4P-SH	KAM4P-MH	KAM4P-LH

Introducing the KAM4 (Keep-Alive™ Mini) and KAM4-LED Decoders! Smaller than the KAT-Series, but with the same trusted onboard Keep-Alive™ the KAM4 and KAM4-LED fit in places a KAT simply won't go. Visit their product page for more information.

The onboard current limit resistors connected in series allow for LED installations with NO EXTERNAL RESISTORS for F0F, F0R, F1 or F2 (Use the standard KAM4 if your locomotive already has series connected current limit resistors for LED’s)!