Slightly Medicated
(SliM) Iron Lungs
I had two of the power supplies Dave included. One was running at around 13 and the other was around 15. It varied by .5 volts depending on when I tested. This was without any load on it or anything. I think they just vary some between the individual units. I prefer the variable volt power supply because you can better maintain the temperature. I figured it will last longer because I can turn it down to 11.5 or so in between sessions.