[sdiy] VCA response - continuously variable between linear and exponential

[neil harper]

> As usual, I tested it only on LTspice.
> Quite good exponential curves were obtained thanks to 
> low impedance design.  If you don't need precise linear response,
> An audio-curve 2k-ohm pot seems to be good for continuous control.  
> If available, reverse-log curve pot with switch would be the best
> to have precise linear response.
> 

hi Sam, this looks great!

the 2k pot is R16 in the diagram and simulation, correct?