[time-nuts] Hobbyist grade or homebrew temperature testing chamber?

Bruce Bell brucewaynebell at gmail.com
Tue Sep 6 20:58:42 EDT 2016

As far as the warm end of the temperature spectrum goes, I have used a
Crockpot without the crock and put a thermometer probe inside. when I
wanted it to stay at a specific temperature I threw a blanket over it and
shut it off.  I suspect you could get it to hold temperature better by
 simply controlling the voltage to it.
For the cold end perhaps, you could put the ceramic crock in the freezer
(roughly 0°F). It would warm slowly enough that you could perform testing
along the way.

On Mon, Sep 5, 2016 at 9:48 PM, Richard (Rick) Karlquist <
richard at 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
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