@gunrunnerjohn posted:The PS/1 smoke unit has a primitive regulator circuit, so it tries to put out as much smoke as possible over a range of voltages. That being said, you can reduce the voltage to 7-8 volts on the input and you will get less smoke.
It seems no matter what voltage I use the smoke output doesn't change. It's the best smoke unit I have ever seen and by far better than my Lionel smoke units.