# precadsr.sch BOM

Mon 10 May 2021 12:33:34 AM EDT

Generated from schematic by Eeschema 5.1.10-88a1d61d58~88~ubuntu20.04.1

**Component Count:** 75

| Refs | Qty | Component | Description | Manufacturer | Part | Vendor | SKU |
| ----- | --- | ---- | ----------- | ---- | ---- | ---- | ---- |
| C1 | 1 | 10nF | Unpolarized capacitor |  |  |  |  |
| C2, C5, C6, C8 | 4 | 100nF | Unpolarized capacitor |  |  | Tayda | A-553 |
| C3, C4, C10 | 3 | 10uF | Polarized capacitor |  |  | Tayda | A-4349 |
| C7, C11 | 2 | 1nF | Unpolarized capacitor |  |  |  |  |
| C9 | 1 | 1uF | Unpolarized capacitor |  |  | Taydaa | A-4755 |
| C12 | 1 | 1 nF | Unpolarized capacitor |  |  |  |  |
| D1, D2 | 2 | 1N5817 | Schottky diode |  |  | Tayda | A-159 |
| D3, D4, D5, D6, D7, D8, D9, D10 | 8 | 1N4148 | 100V 0.15A standard switching diode, DO-35 |  |  |  |  |
| J1 | 1 | Synth_power_2x5 | 2x5 pin shrouded header 2.54 mm spacing |  |  | Tayda | A-2939 |
| J2 | 1 | AudioJack2_SwitchT | Audio Jack, 2 Poles (Mono / TS), Switched T Pole (Normalling) |  |  |  |  |
| J3, J4, J5 | 3 | AudioJack2 | Audio Jack, 2 Poles (Mono / TS) |  |  |  |  |
| J6 | 1 | Conn_01x07 | Generic connector, single row, 01x07, script generated (kicad-library-utils/schlib/autogen/connector/) |  |  |  |  |
| J7 | 1 | 2_pin_Molex_header | 2 pin Molex header 2.54 mm spacing |  |  | Tayda | A-804 |
| J8 | 1 | Conn_01x10 | Generic connector, single row, 01x10, script generated (kicad-library-utils/schlib/autogen/connector/) |  |  |  |  |
| J9 | 1 | Conn_01x04 | Generic connector, single row, 01x04, script generated (kicad-library-utils/schlib/autogen/connector/) |  |  |  |  |
| J10 | 1 | Conn_01x10 | Generic connector, single row, 01x10, script generated (kicad-library-utils/schlib/autogen/connector/) |  |  |  |  |
| J11 | 1 | Conn_01x04 | Generic connector, single row, 01x04, script generated (kicad-library-utils/schlib/autogen/connector/) |  |  |  |  |
| J12 | 1 | 2_pin_Molex_connector | 2 pin Molex connector 2.54 mm spacing |  |  | Tayda | A-826 |
| L1 | 1 | LED | Light emitting diode |  |  |  |  |
| Q1, Q2, Q3 | 3 | 2N3904 | 0.2A Ic, 40V Vce, Small Signal NPN Transistor, TO-92 |  |  |  |  |
| R1, R10, R11 | 3 | 22k | Resistor |  |  |  |  |
| R2, R5 | 2 | 10k | Resistor |  |  |  |  |
| R3, R7 | 2 | 1M | Resistor |  |  |  |  |
| R4, R12, R13 | 3 | 4.7k | Resistor |  |  |  |  |
| R6, R8 | 2 | 47k | Resistor |  |  |  |  |
| R9 | 1 | 10R | Resistor |  |  |  |  |
| R14, R15, R18 | 3 | 1k | Resistor |  |  |  |  |
| R16, R17, R19, R20 | 4 | 100k | Resistor |  |  |  |  |
| R21, R22, R23 | 3 | 100R | Resistor |  |  |  |  |
| R24, R26, R28 | 3 | A1M | Potentiometer |  |  |  |  |
| R25, R27, R29 | 3 | A1M | Potentiometer |  |  |  |  |
| R30 | 1 | B10k | Potentiometer |  |  |  |  |
| R31 | 1 | B10k | Potentiometer |  |  |  |  |
| S1 | 1 | SW_3PDT_x3 | Switch, triple pole double throw, separate symbols |  |  |  |  |
| S2 | 1 | SW_SPDT | Switch, single pole double throw |  |  |  |  |
| S3 | 1 | SW_Push | Push button switch, generic, two pins | Dailywell | PAS7B3M1CESA6-5 | Tayda | A-3588 |
| U1 | 1 | ICM7555xP | CMOS General Purpose Timer, 555 compatible, PDIP-8 |  |  |  |  |
| U2 | 1 | TL074 | Quad Low-Noise JFET-Input Operational Amplifiers, DIP-14/SOIC-14 |  |  |  |  |
| U3 | 1 | LM358 | Low-Power, Dual Operational Amplifiers, DIP-8/SOIC-8/TO-99-8 |  |  |  |  |
    
