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OR: | | C1, C11 | 3 | AudioJack2 | Audio Jack, 2 Poles (Mono / TS), Switched T Pole (Normalling Audio Jack, 2 Poles (Mono / TS) Low-Power, Quad-Operational Amplifiers, DIP-14/SOIC-14/SSOP-14 Operational amplifier, DIP-8 100V 0.15A standard switching diode, DO-35 2x5 pin shrouded header 2.54 mm spacing Q1, Q2, Q3, Q4, Q5 | 5 | 2N3904 .