2 layers99.1 × 99.1 mm
2 layers99.1 × 99.1 mm
Lfo
eblade/synthSynth stuff
- Size
- 99.1 × 99.1 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 79
- Nets
- 56
- Pads
- 214
- Tracks, vias
- 334, 0
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 31 Oct 2019
- Updated
- 18 Sep 2024
Overview
Lfo is an open-source printed circuit board by eblade, from the eblade/synth repository on GitHub. It is a 2-layer board of 99.1 × 99.1 mm with 79 parts on 56 nets, routed with 334 tracks and 0 vias.
It is built around the TL072 and BC550. Its parts include 44 resistors, 9 capacitors, 8 connectors, 5 transistors and 3 ICs.
Main components
2Parts
79| Qty | Value | Footprint | References |
|---|---|---|---|
| 12 | 100k | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R1, R2, R3, R4, R5, R17, R18, R20, R21, R22, R26, R41 |
| 7 | 100n | Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P2.50mm | C1, C2, C3, C4, C5, C6, C7 |
| 6 | 1K | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R12, R14, R34, R37, R39, R40 |
| 5 | 10K | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R16, R35, R36, R38, R44 |
| 5 | 10k | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R10, R11, R19, R25, R32 |
| 5 | 47k | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R6, R7, R8, R9, R13 |
| 5 | BC550 | Package_TO_SOT_THT:TO-92_Inline | Q1, Q2, Q3, Q4, Q5 |
| 2 | 10R | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R42, R43 |
| 2 | 10U | Capacitor_THT:CP_Radial_D5.0mm_P2.00mm | C8, C9 |
| 2 | 1N4004 | Diode_THT:D_5W_P12.70mm_Horizontal | D2, D3 |
| 2 | 33K | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R28, R29 |
| 2 | 470R | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R15, R27 |
| 2 | TL074 | Package_DIP:DIP-14_W7.62mm_Socket_LongPads | U1, U2 |
| 1 | 20K | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R30 |
| 1 | 220R | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R23 |
| 1 | 50k | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R31 |
| 1 | 68K | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R24 |
| 1 | COS | Connector_Audio:Jack_3.5mm_QingPu_WQP-PJ398SM_Vertical_CircularHoles | J7 |
| 1 | CV | Connector_Audio:Jack_3.5mm_QingPu_WQP-PJ398SM_Vertical_CircularHoles | J1 |
| 1 | CV | Potentiometer_THT:Potentiometer_Alps_RK09L_Single_Vertical | RV2 |
| 1 | EURO | Connector_PinHeader_2.54mm:PinHeader_2x05_P2.54mm_Vertical | J2 |
| 1 | F | Potentiometer_THT:Potentiometer_Alps_RK09L_Single_Vertical | RV1 |
| 1 | LED | LED_THT:LED_D3.0mm | D1 |
| 1 | RAMP 20K | Potentiometer_THT:Potentiometer_Bourns_3296W_Vertical | R33 |
| 1 | RAMP DOWN | Connector_Audio:Jack_3.5mm_QingPu_WQP-PJ398SM_Vertical_CircularHoles | J8 |
| 1 | RAMP UP | Connector_Audio:Jack_3.5mm_QingPu_WQP-PJ398SM_Vertical_CircularHoles | J5 |
| 1 | SC1 100K | Potentiometer_THT:Potentiometer_Bourns_3296W_Vertical | RV3 |
| 1 | SC2 50K | Potentiometer_THT:Potentiometer_Bourns_3296W_Vertical | RV4 |
| 1 | SIN | Connector_Audio:Jack_3.5mm_QingPu_WQP-PJ398SM_Vertical_CircularHoles | J6 |
| 1 | SQR | Connector_Audio:Jack_3.5mm_QingPu_WQP-PJ398SM_Vertical_CircularHoles | J4 |
| 1 | TL072 | Package_DIP:DIP-8_W7.62mm_Socket_LongPads | U3 |
| 1 | TRI | Connector_Audio:Jack_3.5mm_QingPu_WQP-PJ398SM_Vertical_CircularHoles | J3 |
The 76 most common of 79 parts.
Questions
How big is the Lfo PCB?
It measures 99.1 × 99.1 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Lfo use?
79 parts, built around the TL072 and BC550. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Lfo KiCad files?
From the eblade/synth repository on GitHub, at the commit this page was made from: the board is lfo/lfo.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Lfo design in my own project?
Its repository states no licence, so its author keeps all rights: ask eblade before reusing the design.
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