The Atlas Twin provides a simple method of controlling turntables, sidings, wyes, etc. Any number of Twins can be ganged (coupled) together without additional wiring by using the little double-edged connectors provided.

The Atlas Twin consists of a pair of double-pole, double-throw switches internally connected to allow independent electrical polarity control at either of the two pairs of output (upper) terminals. It provides a simple means for controlling reversing loops or simple double track layouts.