[sdiy] CMOS Switch as VCA?

[Ullrich Peter]

Maybe the old EFM design could be interesting using the 4049:

Schematics can be found here:

http://electro-music.com/forum/topic-37638.html

To understand this very special circuit (VDD and VSS connected!) you need to have a look at the explanation diagrams at the end of the page.

Also interesting: The different circuits from Osamu Hoshuyama also on this page 
(4007 VCA for example).

Ciao
Peter

http://come.to/synpro
http://go.to/datadial (Synth Addon)