MOBILE DECODERS ARE DECODERS TO INSTALL IN LOCOMOTIVES. Some decoders are "hard-wired" wire by wire into your locomotive by soldering them in. Other decoders are the "drop-in" style and some are simply plugged in with a factory installed 8-pin or 9-pin plug.
New Products For October - MOBILE DECODERS
TCS KA-3 "Keep Alive"
TCS KA-4"Keep Alive"