DIY Voltage Controlled Filter
| 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 |  |