[sdiy] Good precision pot choice for VCO CV panel tuning ??
neil.johnson97 at ntlworld.com
Thu Sep 16 11:29:44 CEST 2010
David G. Dixon wrote:
> No pot will be linear (no matter how expensive) if it's output isn't
> buffered before hitting a finite impedance, such as the input resistor to a
General rule of thumb is that the wiper should see a resistance x10
that of the track resistance. So if you have a 100k pot then you
should have 1Meg connection to the wiper. Obviously higher is better,
offset by the problems inherent in high-impedance circuits.
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