2 layers163.1 × 101.3 mm
4 layers163 × 116.5 mm
Sequencer
gehel/synth- Size
- 163 × 116.5 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 158
- Nets
- 171
- Pads
- 515
- Tracks, vias
- 852, 8
- Pours
- 518
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 4 Oct 2023
- Updated
- 2 May 2026
Overview
Sequencer is an open-source printed circuit board by gehel, from the gehel/synth repository on GitHub. It is a 4-layer board of 163 × 116.5 mm with 158 parts on 171 nets, routed with 852 tracks and 8 vias.
It is built around the TL072, CD4094DN and CD74HC4067M. Its parts include 87 resistors, 27 capacitors, 14 diodes, 13 connectors and 12 ICs.
Main components
3
TL072
SOP-8-18V~18V 0℃~+70℃ 1.4mA 1.5nA 10V/us 10mV 2 2.5nA 3MHz 85dB SOP-8 Operational Amplifier ROHSGcoreOperational Amplifier
CD4094DN
DIP-16-20℃~+85℃ 135ns@15V,50pF 3V~15V 4000B Series 6MHz 8 Serial-to-Parallel Tri-State DIP-16 Shift Registers ROHSHGSEMIShift Registers
CD74HC4067M
SOIC-24-300mil-55℃~+125℃ 16 160Ω 16:1 22ns 2V~6V 345ns 365ns 89MHz Bidirectional analog channel、Glitch-free switching SOIC-24-300mil Analog Switches, Multiplexers ROHSTexas InstrumentsAnalog Switches, Multiplexers
Parts
158| Qty | Value | Footprint | References |
|---|---|---|---|
| 25 | 100K | Library:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R12, R17, R20, R33, R34, R42, R47, R49, R51, R53, R55, R57, R59, R61, R63, R65 +9 |
| 18 | 2M | Library:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R38, R39, R48, R50, R52, R54, R56, R58, R60, R62, R64, R66, R68, R70, R72, R74 +2 |
| 14 | 1N914 | Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal | D1, D2, D3, D4, D5, D6, D7, D8, D9, D10, D12, D14, D15, D18 |
| 10 | 10K | Library:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1, R5, R7, R8, R10, R11, R31, R79, R85, R87 |
| 8 | 10nF | Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P2.50mm | C1, C4, C5, C6, C9, C12, C20, C21 |
| 7 | Conn_01x08 | Connector_PinHeader_2.54mm:PinHeader_1x08_P2.54mm_Vertical | J2, J3, J8, J9, J10, J11, J12 |
| 6 | 220K | Library:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R2, R4, R6, R15, R16, R29 |
| 6 | 47K | Library:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R21, R22, R25, R28, R80, R81 |
| 5 | 20nF | Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P2.50mm | C2, C3, C7, C8, C11 |
| 4 | 100nF | Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P2.50mm | C16, C17, C24, C26 |
| 4 | 1K | Library:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R18, R26, R36, R37 |
| 4 | 1nF | Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P2.50mm | C13, C14, C15, C22 |
| 4 | 4.7K | Library:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R32, R40, R45, R46 |
| 4 | 680K | Library:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R3, R13, R14, R30 |
| 4 | MountingHole_Pad | MountingHole:MountingHole_3.2mm_M3_Pad | H1, H2, H3, H4 |
| 3 | 40106 | Package_DIP:DIP-14_W7.62mm_Socket_LongPads | U2, U3, U5 |
| 2 | 10uF | Capacitor_THT:CP_Radial_D5.0mm_P2.50mm | C18, C19 |
| 2 | 1M | Library:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R43, R44 |
| 2 | 3K | Library:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R27, R35 |
| 2 | 470pF | Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P2.50mm | C25, C27 |
| 2 | Conn_01x04 | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J5, J7 |
| 2 | TL072 | Package_DIP:DIP-8_W7.62mm_Socket_LongPads | U7, U11 |
| 1 | 100pF | Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P2.50mm | C23 |
| 1 | 1uF | Capacitor_THT:CP_Radial_D5.0mm_P2.50mm | C10 |
| 1 | 200K | Library:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R83 |
| 1 | 20K | Library:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R24 |
| 1 | 22R | Library:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R86 |
| 1 | 2N3904 | Package_TO_SOT_THT:TO-92_Inline | Q1 |
| 1 | 3.9K | Library:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R19 |
| 1 | 4.7M | Library:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R41 |
| 1 | 4013 | Package_DIP:DIP-14_W7.62mm_Socket_LongPads | U1 |
| 1 | 40193 | Package_DIP:DIP-16_W7.62mm_Socket_LongPads | U4 |
| 1 | 4514 | Package_DIP:DIP-24_W15.24mm_Socket_LongPads | U6 |
| 1 | 6.2K | Library:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R23 |
| 1 | CD4094 | Package_DIP:DIP-16_W7.62mm_Socket_LongPads | U8 |
| 1 | CD74HC4067M | Package_DIP:DIP-24_W15.24mm_Socket_LongPads | U9 |
| 1 | Conn_01x03 | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J4 |
| 1 | Conn_01x04 | Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical | J13 |
| 1 | Conn_01x05 | Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_Vertical | J6 |
| 1 | Conn_02x05_Odd_Even | Connector_PinHeader_2.54mm:PinHeader_2x05_P2.54mm_Vertical | J1 |
| 1 | LM285Z-ADJ | Package_TO_SOT_THT:TO-92_Inline | U12 |
| 1 | TL074 | Package_DIP:DIP-14_W7.62mm_Socket_LongPads | U10 |
Questions
How big is the Sequencer PCB?
It measures 163 × 116.5 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Sequencer use?
158 parts, built around the TL072, CD4094DN and CD74HC4067M. 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 Sequencer KiCad files?
From the gehel/synth repository on GitHub, at the commit this page was made from: the board is Sequencer/Sequencer/Sequencer.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Sequencer 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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