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Format. * [Schematic](Docs/precadsr.pdf) * PCB layout: [front](Docs/precadsr_layout_front.pdf), [back](Docs/precadsr_layout_back.pdf * [How to use](Docs/use.md 96f746fa2d Final tweaks, version submitted to JLCPCB on 20240124 3d279dd88c Finish schematic, add PDF | J6 | 1 nF | Unpolarized capacitor | | J3 | 1 | TL074 | Quad Low-Noise JFET-Input Operational Amplifiers, DIP-14/SOIC-14 Low-Power, Dual Operational Amplifiers, DIP-8/SOIC-8/TO-99-8 | | | | J9 | 3 | 4.7k | Resistor | | D1, D2, D3, D4, D5, D6, D7, D8, D9, D10 | 8 | 1N4148 | 100V 0.15A standard switching diode, DO-35 Push button switch, generic, two pins | Dailywell | PAS6B3M1CESA3-5 or PAS6B3M1CESA2-5 | Tayda | A-2939 | | | | | | Tayda | A-4349 | | J1 | 1 | 1 | B10k | **Potentiometer, 16 mm vertical board mount OR: | | R8, R10, R12 | 3 | 10k | Resistor | | | | | | Tayda | A-553 | | R15, R17, R19 | 3 | AudioJack2 | Audio Jack, 2 Poles (Mono / TS *(optional) SIP socket, 2.54 mm, 1x4 | | R1, R2 | 2 aoKicad | 1 Hardware/lib/aoKicad | 1 | LM358 | Low-Power, Dual Operational Amplifiers, DIP-8/SOIC-8/TO-99-8 | | R14, R15, R18 | 3 | 10uF | Electrolytic capacitor | | | S1 | 1 | AudioJack2_SwitchT | Audio Jack, 2 Poles (Mono .

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