my dad and i are hatching in a brower incubator purchased in 1956 new. i was hoping someone here was using one of these, or knew where i could find instructions/manual online (or otherwise). like i said, it's a cabinet style, wooden, four trays. water trays, two vents on the front, four on top. forced air with a fan inside, at the top. waffle thermostat. curious if the front vents work with the top vents, if they work independently (in other words, do you have to have the front vents open for the top vents to work)? assuming the different sized water trays affect the humidity, do to increased/decreased surface area? it's got a dry bulb and a wet bulb thermostat. the only opening to the tube the wick is sitting in, is where the wick inserts. otherwise it makes a turn up and is sealed at the top. how much water to put in it? those are the type of questions i have, and was hoping someone could point me in the right direction. thanks!