[sdiy] Linearized 2164 VCA Warning

[Andre Majorel]

On 2010-12-27 23:28 -0800, David G. Dixon wrote:

> Given the exact nature of the problem, I'd rather add a
> two-cent resistor and a couple of traces than replace a
> one-dollar opamp with a five-dollar one to achieve exactly the
> same end.

Precision op amps also have lower tempcos and lower long-term
drift. Whether that matters in this circuit, I don't know.

They don't have to be expensive either. The LT1013 and OP07 are
pretty cheap. But the cheap ones have low slew rates that might
limit audio-rate modulation.

-- 
André Majorel http://www.teaser.fr/~amajorel/