Thanks John. Very interesting in that there was no difference in output.
Thinking about your statement, "the smoke reverts to the pulsing action". Does this infer the pulsing action actually goes away when the smoke is "turned on"? Or does the frequency increase so that it looks like a constant voltage (I would also guess there is a CAP in this circuit as well.)? This goes one step further to ask if its the frequency (pulse rate) that is increased or decreased depending if you are at the Low, Medium or High smoke output settings. The tests results could be impacted if the resistor may not be as responsive to the change in pulse rate of the voltage. I do not have a scope available to test.
Do you have any suggestions on any further testing? I would be more than happy to assist.
Dave
