Rob Hordijk Library

Collected schematics, manuals, and reference diagrams for Rob Hordijk’s chaotic and feedback-driven instrument designs.

• Nord Modular Book — walkthrough of patching concepts that underpin the Benjolin and Blippoo Box.
• Blippoo Box Block Diagram — signal flow for the double wide band chaos machine.
• Rungler Flowchart — explaination of Hordijk’s pseudo-random voltage generator.
• Storm Tide Flanger Notes — three-part deep dive into the triple chorus/flanger circuit.
• Twin Peak Resonator Manual — official documentation for the dual-peak filter.
• Benjolin Schematic — core chaos oscillator and rungler topology.