4 layers163 × 116.5 mm
2 layers131 × 69 mm
Controller
gehel/synth- Size
- 131 × 69 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 129
- Nets
- 81
- Pads
- 314
- Tracks, vias
- 500, 1
- Pours
- 21
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 4 Oct 2023
- Updated
- 2 May 2026
Overview
Controller is an open-source printed circuit board by gehel, from the gehel/synth repository on GitHub. It is a 2-layer board of 131 × 69 mm with 129 parts on 81 nets, routed with 500 tracks and 1 via.
It is built around the TL072. Its parts include 61 resistors, 26 capacitors, 13 diodes, 13 connectors and 6 ICs.
Main components
1Parts
129| Qty | Value | Footprint | References |
|---|---|---|---|
| 28 | 100R | Library:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R29, R30, R31, R32, R33, R34, R35, R36, R37, R38, R39, R40, R41, R42, R43, R44 +12 |
| 15 | 100nF | Capacitor_THT:C_Disc_D3.0mm_W1.6mm_P2.50mm | C8, C10, C11, C12, C13, C14, C15, C16, C17, C18, C19, C20, C21, C22, C25 |
| 12 | Conn_01x01_Pin | Connector_Pin:Pin_D1.0mm_L10.0mm | J2, J3, J4, J5, J6, J7, J8, J9, J10, J11, J12, J13 |
| 11 | 1N914 | Diode_THT:D_T-1_P5.08mm_Horizontal | D1, D2, D3, D4, D5, D6, D7, D8, D9, D10, D11 |
| 6 | 1M | Library:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R3, R4, R5, R8, R18, R59 |
| 4 | MountingHole_Pad | MountingHole:MountingHole_3.2mm_M3_DIN965_Pad | H1, H2, H3, H4 |
| 3 | 100K | Library:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R9, R11, R19 |
| 3 | 10uF | Capacitor_THT:CP_Radial_D5.0mm_P2.50mm | C7, C23, C24 |
| 3 | 20K | Library:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R13, R24, R26 |
| 2 | 10k | Library:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R7, R10 |
| 2 | 1K | Library:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R23, R25 |
| 2 | 200K | Library:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R14, R21 |
| 2 | 2N5457 | Package_TO_SOT_THT:TO-92_HandSolder | Q1, Q2 |
| 2 | 3.9K | Library:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R60, R61 |
| 2 | 39K | Library:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R20, R57 |
| 2 | 3K | Library:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R27, R28 |
| 2 | 4.7nF | Capacitor_THT:C_Disc_D3.0mm_W1.6mm_P2.50mm | C3, C6 |
| 2 | 470pF | Capacitor_THT:C_Disc_D3.0mm_W1.6mm_P2.50mm | C4, C5 |
| 2 | TL072 | Package_DIP:DIP-8_W7.62mm_Socket_LongPads | U3, U5 |
| 2 | TL074 | Package_DIP:DIP-14_W7.62mm_Socket_LongPads | U1, U2 |
| 2 | ~ | Library:Keyboard 5 keys | K1, K3 |
| 1 | 100k | Library:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R15 |
| 1 | 10K | Library:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R12 |
| 1 | 10nF | Capacitor_THT:C_Radial_D8.0mm_H11.5mm_P3.50mm | C9 |
| 1 | 10nF | Capacitor_THT:C_Disc_D3.0mm_W1.6mm_P2.50mm | C26 |
| 1 | 150K | Library:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R16 |
| 1 | 1K | Potentiometer_THT:Potentiometer_Bourns_3266Y_Vertical | RV2 |
| 1 | 1nF | Capacitor_THT:C_Disc_D3.0mm_W1.6mm_P2.50mm | C1 |
| 1 | 20R | Library:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R22 |
| 1 | 22pF | Capacitor_THT:C_Disc_D3.0mm_W1.6mm_P2.50mm | C2 |
| 1 | 2N3906 | Package_TO_SOT_THT:TO-92_HandSolder | Q3 |
| 1 | 300K | Library:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R6 |
| 1 | 30K | Library:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1 |
| 1 | 4.7K | Library:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R2 |
| 1 | 47K | Library:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R17 |
| 1 | 82K | Library:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R58 |
| 1 | Conn_02x05_Odd_Even | Connector_PinHeader_2.54mm:PinHeader_2x05_P2.54mm_Vertical | J1 |
| 1 | GATE | LED_THT:LED_D3.0mm | D13 |
| 1 | LF444 | Package_DIP:DIP-14_W7.62mm_Socket_LongPads | U4 |
| 1 | TL071 | Package_DIP:DIP-8_W7.62mm_Socket_LongPads | U6 |
| 1 | TRIG | LED_THT:LED_D3.0mm | D12 |
Questions
How big is the Controller PCB?
It measures 131 × 69 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Controller use?
129 parts, built around the TL072. 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 Controller KiCad files?
From the gehel/synth repository on GitHub, at the commit this page was made from: the board is Controller/Controller/Controller.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Controller design in my own project?
Its repository states no licence, so its author keeps all rights: ask gehel before reusing the design.
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