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Lib="Amplifier_Operational" part="LM2902"> Low-Power, Quad-Operational Amplifiers, DIP-14/SOIC-14/SSOP-14 Dual Operational Amplifiers, DIP-14/SOIC-14 | | | R15, R20, R22 | 3 | 10uF | Electrolytic capacitor | | | | | | C2 | 1 | Conn_01x07 | *(optional) SIP socket, 2.54 mm, 1x4 Light emitting diode | | | R30 | 1 | Conn_01x10 | Pin header 2.54 mm spacing | | | R17, R19 | 3 | AudioJack2 | Audio Jack, 2 Poles (Mono / TS)"/> Quad operational amplifier, DIP-14 | | | | | | | | | | | R8, R10, R12 | 3 | 100R.

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