Quantity   Component name
2 × 1M 1% precision resistors
6 × 330R 5% precision resistors
3 × 10K 1% precision resistors
2 × 22K 1% precision resistors
3 × 1K 1% precision resistors
4 × 220K 1% precision resistors
2 × 1nF Ceramic disc capacitor
3 × 100nF Ceramic disc capacitor
3 × 100pF Ceramic disc capacitor
1 × 3-pin angled header Connectors
2 × 5x5mm buttons Buttons
1 × Optoisolator
4 × JST PH angled connectors Connectors
4 × JST PH straight connectors Connectors
1 × IC Socket Socket for Quad OpAmp
1 × Amp Quad OpAmp
6 × LEDs
1 × 3.5mm headphone jack
1 × 2.2uF capacitor Electrolytic capacitor
1 × 1uF capacitor Electrolytic capacitor
2 × 470uF capacitor Electrolytic capacitor
1 × Arduino shield header pins Connectors