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velvia-fifty
DIY audio-related projects of questionable quality and dubious utility; delivered in 30 minutes or less or the next one is free
| Reference | Value | Description |
|---|---|---|
| Q1,Q2 | BC857BDW1Ts | Dual PNP SOT-363 transistor, 45V, 100mA, 250mW, Alternate KiCAD Library |
| U1 | TPS560430XDBVR | |
| U2,U6,U13 | TL074 | Quad Low-Noise JFET-Input Operational Amplifiers, DIP-14/SOIC-14 |
| U3,U4,U9 | LM339 | Quad Differential Comparators, SOIC-14/TSSOP-14 |
| U5,U7,U8,U10-U12 | NE5532 | Dual Low-Noise Operational Amplifiers, DIP-8/SOIC-8 |
| C1,C6,C7,C14-C31 | 100nF | Unpolarized capacitor |
| C2 | 4.7uF | Unpolarized capacitor |
| C3 | 0.1uF | Unpolarized capacitor |
| C4 | 15uF | Unpolarized capacitor |
| C5,C8,C9,C11,C13 | 100pF | Unpolarized capacitor |
| C10,C12 | 47uf / 16v | Unpolarized capacitor |
| C32 | 10uF | Polarized capacitor |
| D1,D10,D11 | LED (Red) | Light emitting diode |
| D2,D12,D13 | LED (Yellow) | Light emitting diode |
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| D3,D14,D15,D17,D19 | LED (Green) | Light emitting diode |
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| D4 | LED (Blue) | Light emitting diode |
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| D5 | PRSNT | Light emitting diode |
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| D6 | 5V OK | Light emitting diode |
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| D7 | 12V OK | Light emitting diode |
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| D8 | -12V OK | Light emitting diode |
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| D16,D18,D20-D22,D24,D26-D29 | 1N4148WS | 75V 0.15A Fast switching Diode, SOD-323 |
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| D23,D30 | Red +6dB | Light emitting diode |
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| D25,D31 | Yellow +3dB | Light emitting diode |
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| J1 | FRONT PANEL MAGIC | Generic connector, single row, 01x10, script generated (kicad-library-utils/schlib/autogen/connector/) |
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| J2,J5 | Stereo Jack - SMD HZ | Audio Jack, 3 Poles (Stereo / TRS), Switched T Pole (Normalling) |
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| J3 | EXT_INTERFACE_1 | Generic connector, single row, 01x30, script generated (kicad-library-utils/schlib/autogen/connector/) |
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| J4 | Daughter | Generic connector, single row, 01x30, script generated (kicad-library-utils/schlib/autogen/connector/) |
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| J6 | OPT EURO | Generic connector, double row, 02x08, odd/even pin numbering scheme (row 1 odd numbers, row 2 even numbers), script generated (kicad-library-utils/schlib/autogen/connector/) |
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| J8 | DIN41612_02x32_AB | DIN41612 connector, double row (AB), 02x32, script generated (kicad-library-utils/schlib/autogen/connector/) |
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| J9 | USB | HEADER 1x4 MALE PINS 0.100” 180deg |
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| J10 | Audio In | Generic connector, single row, 01x08, script generated (kicad-library-utils/schlib/autogen/connector/) |
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| J11 | Audio Out | Generic connector, single row, 01x08, script generated (kicad-library-utils/schlib/autogen/connector/) |
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| J12 | UART |
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| J13 | I2C | Generic connector, double row, 02x04, odd/even pin numbering scheme (row 1 odd numbers, row 2 even numbers), script generated (kicad-library-utils/schlib/autogen/connector/) |
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| J14 | FX SEND | Audio Jack, 2 Poles (Mono / TS) |
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| J15 | 20V PD | Generic connector, single row, 01x02, script generated (kicad-library-utils/schlib/autogen/connector/) |
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| J16 | EXT Outs | Generic connector, single row, 01x10, script generated (kicad-library-utils/schlib/autogen/connector/) |
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| J17 | TO FX | Audio Jack, 3 Poles (Stereo / TRS), Switched TR Poles (Normalling) |
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| J18 | Out | Audio Jack, 3 Poles (Stereo / TRS) |
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| J19 | IN | Audio Jack, 3 Poles (Stereo / TRS) |
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| J20 | FROM FX | Audio Jack, 3 Poles (Stereo / TRS), Switched TR Poles (Normalling) |
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| J21 | FX RETURN | Audio Jack, 2 Poles (Mono / TS) |
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| L1 | 12uH | Inductor |
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| R1-R3 | 150R | Resistor |
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| R4,R43,R44,R46,R64-R66 | 100R | Resistor |
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| R5 | 1.37M | Resistor |
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| R6 | 255k | Resistor |
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| R7 | 178k | Resistor |
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| R8 | 22.1k | Resistor |
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| R9,R10 | 150 | Resistor |
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| R11,R12 | 500 | Resistor |
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| R13,R15,R16,R24,R35,R38,R40,R55,R58,R61,R74 | 1k | Resistor |
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| R14,R37,R52 | 20k | Resistor |
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| R17,R22,R39,R60 | 2k | Resistor |
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| R18,R19 | 5k3 1W | Resistor |
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| R23,R25 | 820R | Resistor |
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| R26 | 200R | Resistor |
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| R27,R28,R45,R54 | 180R | Resistor |
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| R29,R30,R49,R57 | 22k | Resistor |
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| R31,R32,R50,R59 | 3k3 | Resistor |
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| R33,R36,R41,R42,R53,R56,R62,R63 | 10R | Resistor |
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| R34,R51 | 16k | Resistor |
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| R47,R48,R67,R68,R73,RV4,RV5 | 10k | Dual potentiometer, separate units,Potentiometer,Resistor |
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| R72 | 470R | Resistor |
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| R75 | 1M | Resistor |
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| R76 | 150k | Resistor |
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| RV1-RV3 | PTV09 Pot HZ | Potentiometer |
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| SW1 | Micro Toggle | TE Part |
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| SW2 | -3dB Cut | Switch, dual pole double throw, separate symbols |
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| SW3 | Phones/Line | Switch, dual pole double throw, separate symbols |
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