Hi all ^_^
Actually, the last Christmas i powered my Emerald Night cutting an old 9V cable
(compatible with the original 9V motor)and soldering the wires to the terminals
of a standard PF battery box (the bulky original one).
At this point i'm able to connect the empty battery box to the 9V motor, powering
the lights i placed in the engine and in the wagon, while the original unmodified
motor pulls the train.
To embed the battery box (used in place of a PF switch because it costs less) i
rebuilt the tender (making a much bigger version: it's almost long as the engine ^_^ ).
It worked very well, even if the original engine wheels tended to obsatcle the
movement, slowing down the train until it stops.
I forgot to say that the speed is directly regulated by the original SR, making the
lights turning off if the voltage fades away while slowing down the train.
As soon as i found my Camera ill post some pictures of the modified train ;)
p.s. sorry for my clumsy english: i'm italian