Save yourself the swapping and pick up a Jensen 25
Seems like a good enough excuse to add another to the collection 
Nick, this old experiment started when I tried make a basic light bulb shine with an old toy motor and a Jensen 35.
I do see that this steam hobby is full of chain reactions that oft result in the joy of having more engines 
Before you know it, you’ll be stacking them up like cordwood!😂
Holy cow Mike!
Looks like Jensen Heaven!