I have old British clockwork Hornby trains, (I think that's scale O). The clock works are weak, and I was thinking of buying an electric engine and then altering it by rigging up a battery pack to it to allow it to run on the non-electric tracks I have.
I saw a Thomas tank engine that is very similar in size and shape to both my original engines, but I don't know how to find out if it uses DC current or AC current. I'm not sure the guy in the hobby store was that well informed, and of course after I mess with it then I won't be able to take it back.
So, how do I tell? The box doesn't say anything like that directly, or the voltage either, but I assume that the description is telling me if I knew the right terms to look for.