redcircuits 'sound modifier'

[rutabaga bob]

An intriguing circuit I came across.  Layout is not verified as of yet.  According to the project info, the quad op-amp gives you linear input amp, square wave, triangle wave, and virtual-earth mixer (summing amp) of the first three.  Stated current draw is less than 2mA.             Larry

[rutabaga bob]

[rutabaga bob]

Okay...this is my fourth version of this layout.  I have been working to get the pot wiring together, in the hopes of keeping the 'rat's nest' factor at an acceptable level.  I...haven't built this yet  but am planning on it in the near future.  If anyone HAS put one together, please put a reply in the thread.  If there are some issues, PM me.  Larry