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You've reached the Synthesizer DIY pages of René Schmitz!

The circuits that I provide here are mostly my own designs, and tested, unless otherwise stated. 

A word about analog music
If you are looking forward to build any of the stuff or if you have any questions regarding the material presented here, feel free to send me a mail (in English or German) I sometimes have ideas for little additions or improvements, but I don't have time to present all of them here.

The sign of wisdom and knowledge.. And so cute!

The OTA tutorial by Gene Zumchak

An in depth look on OTAs by Achim Gratz.

Rbe comparison.

Whats that exp and tempco stuff?

Jim Patchells ideal diode tutorial

Whats new here?!

A good place to find Datasheets