[sdiy] 2164 Expo VCO tracking

[Ian Fritz]

At 03:28 AM 4/12/2010, Paul Perry wrote:
>When checking tracking, one has to be very careful
>not to have the temperature of any of the parts change
>while measuring. Otherwise, temperature effects will complicate matters.
>A bit of breeze in the room can wreak havoc.
>Even if everything is accurately and fully temperature compensated,
>if it is possible for different components to be differently exposed to
>air currents, then the measurements will be off.

Good point.  I always drape a rag over the circuit before measuring.  And 
double check everything.

Ian