Set 7865 replacement set for the train engine, however, I decided to describe the general action here as a reference for all reviewed queues.
Description
The engine
This
is just brilliant idea, because the engine draws a current of 12V
directly from the track by four pins protruding from the bottom of
six-wheeled chasis with the electric motor. Engine drives only the two
middle wheels, the other four are for stabilization. Railways, of
course, are not harmful or electrocute, the voltage is very low. The
best thing is, that you don't need to directly turn on the train. You
simply have to turn on the transformer that passes the current through
the tracks and a train automatically begins to go! Electricity is also
used for train real lighting diodes on the front and rear. The train on a
straight track can move really fast! However, small hills could be
problematic. The first wagon, the train, in addition to the electric
motor built in wheels has two 2x6 weight bricks as well. The vehicle
itself is quite heavy. It
was probably the intention to adhere well to the track and do not
accidentally fell off, but on the other hand, it generates a fairly
large burden for a motor
to pull. This is not a problem when you will avoid any high hills in
your railway construction. Well, we have a track, we have a train, but how to power it up?
Here is a problem, because this train set has no transformer included!
You will need additional set 7864-1: Transformer-12V with transformer, which is a
power supply that gives you ability to change the intensity of
transmitted electricity! It is a very nice thing, because you can
regulate the speed of the train, using the black rotating controller.
There is a second slot in the transformer, which provides stable DC.
Additional lanterns connected to it will not flash when you reduce the
speed of the train. As always, everything has been carefully planned!