[sdiy] resistors and 4066 gates...

[Roy J. Tellason]

I've seen a number of different web pages which detail making a dirt-simple 
D/A converter,  usually involving either a number of resistors that double in 
value or an R/2R ladder.

I was thinking that it probably should be possible to do something similar 
only tailoring the response the same way an "audio taper" pot is tailored, 
exponentially rather than linearly.

What I'd like is the ability to switch,  route,  and control the level of 
audio signals.  The stuff I am thinking of would be more along the lines of 
what you'd find as front panel controls on a big mixer,  rather than the sort 
of precise responses to CVs that one would tend to need in the context of a 
typical VCA.

I also have a whole mess of 4066 chips,  and am thinking that these should be 
somehow useful in this context.

Comments?