@Arne- that new set you acquired from Fischer is quite unique. I really love how in the earlier days the manufacturer's all faced a similar problem. How to get electrical power from the supply in the proper and safe voltage to run the trains and accessories. Their varied solutions are interesting for sure. I am surprised that more did not move to batteries since by the 1930's electric flashlights were common and the so called "D" battery was everywhere. Lionel only experimented with batteries very early, back when many homes did not have electricity. They pretty much abandoned this approach and never went back to it. Interesting the decisions the various companies and their technical leadership came to.
Don
