[sdiy] very simple VCA circuit

[lanterma at ece.gatech.edu]

On Jan 27, 2011, at 5:03 PM, Paul Perry wrote:

> I noticed long ago that the difference between a "happy hacker" (such as myself)
> and a "real EE" (you know who you are!) is that the professionals always think in
> terms of current. Things may have been different in the days of tubes - but I doubt it.


I always tell my students that op amp-type circuits often "represent" signals in terms of voltages, but they "compute" by manipulating currents. And, yes, I say that with a lot of hand-waving. ;)

- Aaron