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Socket, 2.54 mm, 1x4 | | | | R24, R26, R28 | 3 | A1M | Potentiometer | | | R4, R6, R7, R30, R31 Switch, dual pole double throw Precision Timers, 555 compatible, PDIP-8 | | Tayda | A-3486 or A-3487\*\*\* | | | | | J3 | 1 | ICM7555xP | CMOS General Purpose Timer, 555 compatible, PDIP-8 | | | Tayda | A-4349 | | | J6, J10, J11 | 1 | TL074 | Quad Low-Noise JFET-Input Operational Amplifiers, DIP-8/SOIC-8/TO-99-8"/>

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