You don't need exact control of the temperature. You just need a slow rate of change and the ability to measure the temperature accurately.
I have used a picnic cooler with some water in the bottom and a very small fish tank heater. But this was for an experiment in a home biology lab not an electronic lab. Any insulated box with a largish thermal mass inside will do. Try sand in place of the water. The neat thing about aquarium heaters is their built in thermostat. Or simp[lly place the DUT in an attic and let the day/night temperature swing do the work for you. My attic get blazing hot in the day and cool at night, the rate of change is not to fast On Mon, Sep 5, 2016 at 7:48 PM, Richard (Rick) Karlquist < rich...@karlquist.com> wrote: > As we all know, step #1 in making a clock is NOT > to build a thermometer :-) > > I thought I would check the brain trust here to see > if anyone has seen a hobbyist grade temperature > testing chamber or kit or homebrew design. I > have some crystals, oscillators, and other > electronics I would like to characterize over > temperature. I know this reflector has discussed > homebrew stabilization ovens; however, they > have tended to have very long time constants > (which makes sense for that application). I > need to be able to change temperature in a > reasonable amount of time, and I don't need > extreme stability. Looking for any ideas, > maybe in the "maker" spirit. I think the > size I need would be perhaps 1/2 the size > of a shoebox. > > BTW, in case someone has a chamber to sell, > let me know... > > Rick Karlquist N6RK > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/m > ailman/listinfo/time-nuts > and follow the instructions there. > -- Chris Albertson Redondo Beach, California _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
