Dual Operational Amplifiers, DIP-14/SOIC-14 | | | R9 | 1 nF | Unpolarized capacitor | | | U1 | 1 | 1uF | Film capacitor | | | J5, J12, J13 | 3 * https://www.digikey.com/en/products/detail/bourns-inc/PTL30-15R0-103B1/3781301 (red B10K) and https://www.digikey.com/en/products/detail/bourns-inc/PTL30-15O0-105A2/7314942 (orange A1M *** The first two groups should be the same, see datasheet: https://www.mouser.com/datasheet/2/54/PTL-777483.pdf (page 4) if we.
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