Molex header Operational amplifier, DIP-8 Operational amplifier, DIP-8 Quad operational amplifier, DIP-14 A-1135 2 8 pin DIP socket A-004 4 Knobs Screws, nuts, and spacers (see [build notes](build.md)) | | | R16, R18, R26 | 3 | 22k | Resistor | | R9, R11, R13 | 3 | 2N3904 | 0.2A Ic, 40V Vce, Small Signal NPN Transistor, TO-92 | | Tayda | A-1121 | | | | Tayda | A-826 | | | C2 | 1 | TL074 | Quad Low-Noise JFET-Input Operational Amplifiers, DIP-8/SOIC-8/TO-99-8 | | R25, R27, R29 | 3 | 10uF | Polarized capacitor | | | | R8.
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