Wind Controller Schematics

 Below are links to several pages describing representative wind controller circuitry. The first two items illustrate single op-amp circuits that can be used with the mouthpiece and keyswitch assemblies described in the "Overview" section to realize a one-chip wind controller. The remaining items are specifically related to The Stealth.

Basic Circuits:

Keyworks Circuit Principles:
A general schematic illustration of how to derive a standard 1oct / V control voltage from a set of keyswitches.

EZ Mouthpiece Electronics:
A simple experimental mouthpiece circuit illustrating optical position detection.

The Stealth:

Keyworks System:
The arrangement and interval assignments of the keys.

Fingering Charts:
Including some discussion of register extensions and alternate fingerings.

Circuit for the Octave Keys:
A schematic diagram of the electronics connected with the left-hand thumb keys, and a brief description of the circuitry for the rest of the keys.

The Mouthpiece Circuit:
A schematic diagram of the servo-stabilized mouthpiece electronics.

    NOTICE: The circuit diagrams presented on this site are strictly for explanatory, instructional and experimental use. Actual construction of the circuits requires a significant knowledge of electronic circuit design and construction beyond what is presented here. The author, Ian Fritz, does not warrantee the operability, reliability, suitability or safety of any of the circuits. Anyone who constructs and/or uses these circuits accepts all responsibility for their operation and safety. All diagrams and photographs on this site are copyrighted, 1998-2007, by Ian Fritz, and may not be reproduced without written permission, with the exception that hard-copy printouts may be made for personal use.
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