| Q1 | MMBT3904 | 0.2A Ic, 40V Vce, Small Signal NPN Transistor, SOT-23 |
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| Q2 | MMBT3906 | TRANS PNP 40V 0.2A SOT-23-3 |
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| U1 | TL074CPWR | IC OPAMP JFET 4 CIRCUIT 14TSSOP |
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| U2 | LM13700 | IC OP TRANSCOND AMP 2 CIRC 16SOIC |
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| C1,C2,C4,C6-C8,C10 | 100nF | CAP CER 0.1UF 50V X7R 0603 |
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| C3,C5 | 10uF | CAP TANT 10UF 10% 25V 2312 |
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| C9 | 100pF | CAP CER 180PF 50V C0G 0603 |
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| D1,D2 | MBR0530 | DIODE SCHOTTKY 30V 500MA SOD123 |
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| D3 | 1N4148 | 75V 0.15A Fast switching Diode, SOD-323 |
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| D4 | LED_BLUE | LED RED CLEAR 0603 SMD |
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| J1 | EURO_POWER_10_RTANG | CONN HEADER R/A 10POS 2.54MM |
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| J2-J5 | THONKICONN_MONO | MONO SWITCHABLE TRS JACK |
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| R1 | 56k | RES 56K OHM 1% 1/10W 0603 |
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| R2,R6,R7,R11,R13,R18 | 100k | RES 100K OHM 1% 1/10W 0603 |
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| R3 | 100R | RES 100R OHM 1% 1/10W 0603 |
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| R4 | 1k 0.5W | RES 1K OHM 1% 1/2W 1210 |
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| R5,R8-R10,R17,R19,R20 | 2.2k |
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