I was just working on a Williams die cast scale Hudson. We know from past discussions that this loco is geared to run way too fast. The way I have tamed them in the past is to install a Cruise Commander from Electric Railroad.
Looking at one today, it occurred to me that there is plenty of room inside for a planetary reduction gear box, one with concentric input and output shafts, between the motor and the gear tower that drives the middle set of drivers.
Does anyone here know where one would go to find such a planetary reduction gear box?
Here's one that is too expensive for my purposes.