It may still work, but I managed to break the coulometer with some mercury leaking out, when trying to prise open the casing, to get a better view under my micr

It may still work, but I managed to break the coulometer with some mercury leaking out, when trying to prise open the casing, to get a better view under my microscope. I'm going to try again with another one soon :) One thing I'm worrying about though, is if the higher voltage causes the mercury to get to a temperature that leads to the glass breaking under heat.