I have wired everything according to EZs diagram except I left the main switch as is on the negative side of the battery in 3x AA box from madvapes. Now when I flip the main switch from off to on, I hear the atty begin to burn slightly, not enough to produce good vapor, but enough to get hot and the regulator gets hot too. When I press the horn switch, the atty fires at the expected 5v but ive got to flip the main switch off to get it to stop. Ive got a few of these 378R05 regulators with control pin and tested them all on the breadboard with same results. I am using 470 ohm resistor, as indicated by the diagram. Anyone not having this issue, or is that how this is supposed to run?