[sdiy] 2164 Expo VCO tracking

[cheater cheater]

Definitely not the Sun, it's too hot!

D.

On Mon, Apr 12, 2010 at 20:14, David G. Dixon <dixon at interchange.ubc.ca> wrote:
>> When doing temperature testing, I always put the PCB in a small closed
>> container lightly packed with crumpled up newspaper to effectively
>> eliminate drafts.  This is the only way I have been able to measure
>> temperature drift under 100 ppm reproducably.
>
> Which newspaper?  ;)
>
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