The exact specifications, as officially documented by MRC for some of its products, may vary from one resource to another.
Specifications listed here come from the product manuals and secondarily from other MRC resources.
Not for use with DCC (AC & DC only)
This sound unit will make your conventionally operated O scale 3-rail AC locomotives, O/G scale 2-rail DC locomotives come to life with sound.
Your power pack controls your locomotive's speed and direction and the synchronized diesel rumble follows along.
Includes 4 prime mover sounds: