[sdiy] rectification/min/max question

[Ian Fritz]

At 11:12 AM 11/19/2007, Dave Manley wrote:
>Take a look at this, it has adjustable gain and offset:
>
>http://www.oldcrows.net/~patchell/synthmodulesII/200-1018.pdf
>
>The circuit could be simplified, as there is a voltage reference for the 
>offset pot you probably don't need.

That circuit is way more complicated than what Dered needs.  This can be 
done with one opamp, if you understand how to design with the generalized 
opamp summer.

Ian