If you are like me and get a kick out of things like this, have fun with the 1 min movie attached. Save file as Tipo-Multicon.avi

Actuation is accomplished via a double pole/double throw switch powered by a 4s NiMH pack. In the model, the gear is actually operated via a vintage amp (essentially a wheel-less servo) connected directly to the Rx with a few leads sticking out of it. Power for the amp and gear can be supplied from the Rx or from a separate dedicated source. 2.4V gear also existed (earlier models) which today could be operated via a single 1100 mAh A123 cell - fast charge, steady voltage and light when combined with a 2s lipo Rx pack.

Playing with stuff like this can actually delay completion of a build by a week or so...

David.