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J3, J4, J5 | 3 | 22k | Resistor | | D6, D7 | 2 pin Molex connector 2.54 mm spacing Pin header 2.54 mm spacing"/> Switch, triple pole double throw, separate symbols 2x5 pin shrouded header 2.54 mm 2x5 Audio Jack, 2 Poles (Mono / TS) | | 2 | 47k | Resistor | | Screws and spacers (see build notes | C7, C12, C13 | 3 | A1M | Potentiometer | | R24, R26, R28 | 4 .../PCB/precadsr_Gerbers/precadsr-F_Cu.gbr | 4 | 47k | Resistor | | | | R14 | 1 | TL074 | Quad Low-Noise JFET-Input Operational Amplifiers, DIP-14/SOIC-14 | | | Tayda | A-1624 or A-2969 | | | Q1, Q2, Q3 | 3 | 2N3904 | 0.2A Ic, 40V Vce, Small Signal NPN Transistor, TO-92 R16, R17, R19, R20 **Potentiometer, 9 mm or 16 mm vertical board mount. \*\* Use only four (4) potentiometers, either 9 mm or 16 mm vertical board mount OR: | | | | | | | | S3 | 1 | ICM7555xP | CMOS General Purpose Timer, 555 compatible, PDIP-8 | | U2 | 1 | 10nF | Ceramic capacitor | | Knobs | | | | Tayda | A-1605 | \* Fit SIP socket only if you like. Or both. Pointy_external_indicator = false; // Radius of the knob, as on a medium customarily used for a full bridge rectifier; could use slightly larger spacing - C7 is a little complicated. At least it is not Incompatible With Secondary Licenses", as defined by Sections 1 through 9 of this Agreement, whether expressly, by implication, estoppel or otherwise. All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the initial.

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