Quantity   Component name
2 × 47 µF capacitor, 1210 footprint, 16 Vdc C2, C5
1 × 100n nF capacitor, 0805 footprint, 16 Vdc C1
1 × 100 kΩ potentiometer, logarithmic RV1, gain
1 × 10 kΩ trim potentiometer, linear, EVM3E footprint, 0.1 W RV2, bias
1 × 10 kΩ potentiometer, logarithmic RV3, volume
1 × 910 Ω resistor, 0603 footprint, 0.1 W R8
1 × 4.7 nF capacitor, 1206 footprint, 16 Vdc C4
2 × 10 nF capacitor, 0805 footprint, 16 Vdc C6, C3
1 × 47 Ω resistor, 1210 footprint, 0.5 W R1
1 × Stereo 1/4 inch audio jack socket, 10 mm diameter J2
1 × Mono 1/4 inch audio jack socket, 10 mm diameter J3
1 × DC barrel jack, 2.1 mm int. 5.5 mm ext, 12mm outside diameter J1
2 × 1 MΩ resistor, 0603 footprint, 0.1 W R2, R7
1 × 3PDT switch SW1
2 × Knobs for pots
1 × Case Frequency Control / Crystals
1 × 300 Ω resistor, 0603 footprint, 0.25 W R3
1 × 68 kΩ resistor, 0603 footprint, 0.1 W R4
1 × 470 kΩ resistor, 0603 footprint, 0.1 W R5
1 × PNP BJT, germanium OC44/AC128/etc, or silicon jellybean, through-hole Q1
1 × Blue LED, T-1 3/4 dimensions, Vf ≈ 3.2 V, If ≈ 20 mA D1
1 × S1G diode, silicon, SMA footprint D2, reverse polarity protection
1 × 47 Ω resistor, 0603 footprint, 0.1 W R6