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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 | BC558 | 0.1A Ic, 30V Vce, PNP Small Signal Transistor, TO-92 |
| Q2 | BC548 | 0.1A Ic, 30V Vce, Small Signal NPN Transistor, TO-92 |
| U1 | TL074 | Quad Low-Noise JFET-Input Operational Amplifiers, DIP-14/SOIC-14 |
| C1 | 100pF | Unpolarized capacitor |
| C2 | 47nF | Unpolarized capacitor |
| C3,C4 | 18nF | Unpolarized capacitor |
| C5 | 330nF | Unpolarized capacitor |
| D1 | 5V OK | Light emitting diode |
| D2 | 12V OK | Light emitting diode |
| D3 | -12V OK | Light emitting diode |
| D4 | PRSNT | Light emitting diode |
| D5-D8 | 1N4148W | 75V 0.15A Fast Switching Diode, SOD-123 |
| J1 | DIN41612_02x32_AB | DIN41612 connector, double row (AB), 02x32, script generated (kicad-library-utils/schlib/autogen/connector/) |
| J2 | 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/) |
| J4 | USB | HEADER 1x4 MALE PINS 0.100” 180deg |
| J5 | Audio In | Generic connector, single row, 01x08, script generated (kicad-library-utils/schlib/autogen/connector/) |
| J6 | Audio Out | Generic connector, single row, 01x08, script generated (kicad-library-utils/schlib/autogen/connector/) |
| J7 |
|---|
| UART |
| J8 | 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/) |
|---|
| J9,J10 | Stereo Jack - SMD HZ | Audio Jack, 3 Poles (Stereo / TRS), Switched T Pole (Normalling) |
|---|
| J11 | EXT_INTERFACE_1 | Generic connector, single row, 01x30, script generated (kicad-library-utils/schlib/autogen/connector/) |
|---|
| J12 | Velocity | Audio Jack, 3 Poles (Stereo / TRS), Switched T Pole (Normalling) |
|---|
| J13 | Trigger | Audio Jack, 3 Poles (Stereo / TRS), Switched T Pole (Normalling) |
|---|
| J14 | Daughter | Generic connector, single row, 01x30, script generated (kicad-library-utils/schlib/autogen/connector/) |
|---|
| R1,R4 | 150 | Resistor |
|---|
| R2,R3 | 500 | Resistor |
|---|
| R5 | 470R | Resistor |
|---|
| R6,R14 | 100k | Resistor |
|---|
| R7 | 4k7 | Resistor |
|---|
| R8,R12,R15 | 10k | Resistor |
|---|
| R9 | 1M | Resistor |
|---|
| R10,R16 | 2k7 | Resistor |
|---|
| R11 | 47k | Resistor |
|---|
| R13,R17,R18 | 22k | Resistor |
|---|
| RV1-RV4 | PTV09 Pot HZ | Potentiometer |
|---|
| SW1 | Micro Toggle | TE Part |
|---|
| SW2 | Thock | Push button switch, generic, two pins |
|---|