[sdiy] 2164 Expo VCO tracking

[Ingo Debus]

Am 12.04.2010 um 19:59 schrieb Ian Fritz:

> At 10:38 AM 4/12/2010, blacet at blacet.com wrote:
>> One technique is to place the board in a styrofoam cooler to avoid  
>> air
>> current effects. You can also place a heater inside and/or place the
>> cooler in a refrigerator (take off the lid for about an hour) or  
>> outside.
>
> This can work, but be careful.  Cooling a circuit too far this way  
> often results in moisture condensing.
>
> Also be careful about convection currents in the cooler.
>

When putting something into styrofoam I'd be worried most about self- 
heating. I once put a small circuit into a little styrofoam box (in  
an attempt to run it at a stable temperature) and ran it over night.  
The next day it was about 5 degrees celsius warmer than the  
environment. Of course it took many hours to reach that temperature.

Not a good idea to achieve a stable temperature, unless you have lots  
of time...

Ingo