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BackDescription="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)) | | R1, R10, R11 | 3 | 4.7k | Resistor | | | | R20, R22 | 3 | 2_pin_Molex_header | KK254 Molex connector 2.54 mm spacing | | | C10 | 1 | LM358 | Low-Power, Dual Operational Amplifiers, DIP-8/SOIC-8/TO-99-8"/>