Speed Governor for Märklin Delta Control

Three components and an arrow-style knob. This manual speed control for the Marklin DELTA multi-loc system adds independent control for an additional locomotive.In multi-loc mode, Mãrklin’s type 6604 Delta Control is capable of controlling four model locomotives. An external connection is available for a manual speed governor to control one additional locomotive. A suitable manual control is available commercially under the designation DELTA-Pilot, but do consider a ‘home brew’ circuit as shown here.