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Shrouded header 2.54 mm spacing | | C6, C7, C8, C9 D1, D2, D3, D4, D5, D8, D9, D10 | 8 | 1N4148 | Standard switching diode, DO-35 | | | R30 | 1 Hardware/Panel/precadsr-panel/fp-lib-table | 4 .../PCB/precadsr_Gerbers/precadsr-B_Mask.gbr | 4 README.md | 1 | TL071 | Operational amplifier, DIP-8 | | | | | | | | | J12 | 1 nF | Unpolarized capacitor | | C1, C11, C12 | 2 | 1N5817 | Schottky Barrier Rectifier Diode, DO-41 | | | | | J9 | 1 | LED | Light emitting diode | | Tayda | A-159 | | Tayda | A-2939 | | | Q1, Q2, Q3, Q4, Q5 R1, R2, R23, R24 R3, R21, R27, R28 | 3 | 2N3904 | 0.2A Ic, 40V Vce, Small Signal NPN Transistor, TO-92 Dual Operational Amplifiers, DIP-14/SOIC-14 | | | | | | | R31 | 1 uF | Polarized capacitor | | R109, R111, R113 | 3 | 22k | Resistor | | | C10 | 1 | SW_SPDT | Switch, triple pole double throw, separate symbols | | | R30 | 1 | ICM7555xP | CMOS General Purpose Timer, 555 compatible, PDIP-8 | | Tayda | A-826 .

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