[sdiy] LM13700 VCA circuit

[Ryan Williams]

actually, The one I mentioned is from an Oakley module, but it's users 
guide mentions the one you are talking about. I didn't even know what a 
VCA was in 1995.

mirwin at qouest.net wrote:
> Ryan,
> Was the VCA circuit you mention the one published by Mike Sims in EDN 
> back  in 1995 (or thereabouts...)... that sure was a neat design that 
> went unnoticed for several years.
> Regards, Mike
>