Hi,
For a few weeks I'm trying to build a Peltier based cloud chamber. I use a stack of 3 Peltier (from the bottom, a tec1-12710 12v, tec1-12710 5v, tec1-12709 5v and on top a 60mmx60x2.5 copper plate). I mesured -37° celcius on top of the last Peltier ans -27° on the copper plate. I also have...