DIY Voltage Controlled Filter

Return To DIY Auido Page
Overview
I was tired of the preset sounds on my Yamaha PSR-310 keyboard so I built this Voltage Controlled filter with an "Auto-wah" circuit to modify the outputs.
High Resolution Image
Click for Sample
Most of the parts can be found at RadioShack, including the circuit cards and case.
High Resolution Image
Click for Sample
Schematic of the Filter Circuit
High Resolution Image
Click for Sample
Schematic of the Trigger/Envelope Generator Circuit
High Resolution Image
Click for Sample
Return to DIY Audio Page