I have the subject smoke unit that has a 8 ohm resistor and fan. I don't know the original application but it looks to be for a diesel and connects to a mother board I assume.
With the 8 Ohm it looks like it needs 5 V or so to smoke. It has 3 pins input (see pics).
I'm trying to use it for constant smoke, ( no puffing) on a Lionel Accessory 175 Rocket launcher. I can provide it 5V from my accessory transformer Lionel LW.
All pins are open circuit except for one pair which gives me about 8 ohms. (resistor?)
I applied 5V and got no action, fan running is what I call action.
Any ideas to get this running without more electronics??