Originally Posted by jmiller320:
On another thread someone said that the smoke units were interchangeable.
That certainly wouldn't be true, the MTH and Lionel smoke units are not compatible mechanically or for the most part, electrically.
MTH has a handful of smoke unit designs, and Lionel has a ton of oddball and unique designs.
For the most part, I can make your Lionel locomotive smoke like an MTH if that's your desire.