AR1 Circuit can be used for auto reversing solutions like trams or trolleys.
The CIRCUITRON AR-1 is an automatic polarity reverser that is ideally suited for use with point to point layouts, displays, test tracks or reverse loop setups. The AR-1 can safely switch up to 6 amp loads, making it compatible with virtually all scales. The AR-1 uses tiny Opto-Sensors mounted between the rails where they are shaded from ambient room light by a piece of rolling stock. The AR-1 requires a filtered 12 volt DC supply for proper operation. Pushbuttons may be incorporated into the circuit for manual reversing.