Train Control Systems TCS #1668 KA4 Keep Alive Power Supply
* The Keep-Alive (KA) devices are used to supply power to decoders during times of power interruption due to dirty track or problematic track work.
KA4 will power an HO-Scale locomotive with headlights on for approximately 6 to 20 seconds (depending on the locomotive and the efficiency of the motor).
This Keep-Alive includes a blue and a black with white stripe wire with which to attach it to a decoder.
Dimensions: .52″ x .52″ x .45″ or 13.22mm x 13.22mm x 11.55mm
New in unopened packaging
Will combine shipping on multiple items