Eurorack spinfx
About the Eurorack spinfx PCB
Eurorack spinfx is an open source PCB design by grappendorf, published on GitHub. It is a 2-layer board measuring 79 × 107 mm, with 79 components from 33 distinct parts.
Other key parts include the CD4511BE, 74HC147, Spin_FV-1, 24LC64 and TL082. By type, the board carries 33 resistors, 23 capacitors, 6 ICs, 6 connectors, 2 switches and 2 LEDs.
It belongs with the audio designs in this gallery.
From the project
Spin FV-1 based effects module for Eurorack systems
An effects module based on the Spin FV-1 IC.
The circuit is built from the reference design in the data sheet with some standard input and output signal level translation. I've also added a slightly over-engineerd program number display.
More information can be found on the project website.
Main components on the Eurorack spinfx
Eurorack spinfx bill of materials (BOM)
79 components, 33 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | CD4511BE | SOIC-16_3.9x9.9mm_Pitch1.27mm | IC1 |
| 1 | 74HC147 | SOIC-16_3.9x9.9mm_Pitch1.27mm | IC2 |
| 1 | Spin_FV-1 | SOIC-28W_7.5x17.9mm_Pitch1.27mm | U1 |
| 1 | 24LC64 | SO-8_5.3x6.2mm_Pitch1.27mm | U2 |
| 1 | TL082 | SO-8_5.3x6.2mm_Pitch1.27mm | U3 |
| 1 | MCP1703A-3302/MB | SOT-89-3 | U4 |
| 1 | 32.768kHz | Crystal_C26-LF_d2.1mm_l6.5mm_Horizontal_1EP_style1 | Y1 |
| 1 | Mini-DIN-4 | Mini_Din_4 | J1 |
| 1 | IN_L | PJ301M-12 | J2 |
| 1 | IN_R | PJ301M-12 | J3 |
| 1 | OUT_L | PJ301M-12 | J4 |
| 1 | OUT_R | PJ301M-12 | J5 |
| 1 | CONN_02X08 | Eurorack_Power_2x8_SMD | J6 |
| 3 | 10k | Alpha_9mm_Pot | RV1, RV2, RV3 |
| 2 | 10k | Alpha_9mm_Trimmer_25mm_with_Shaft | RV4, RV5 |
| 1 | SW_Rotary12 | ROTARY_SWITCH_LORLINCK1049 | SW1 |
| 1 | PROG_INT_EXT | Switch_Eledis_1x_On_On | SW2 |
| 2 | 7-segment common cathode | 7SegmentLED_LTS6760_LTS6780 | AFF1, AFF2 |
| 1 | CLIP | LED_D3.0mm | D1 |
| 1 | 15p | C_1206 | C1 |
Show 13 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 9 | 100n | C_1206 | C2, C5, C11, C13, C19, C20, C21, C22 +1 |
| 2 | 1u | CP_Elec_4x5.8 | C3, C4 |
| 4 | 10u | CP_Elec_4x5.8 | C6, C8, C12, C15 |
| 2 | 220p | C_1206 | C7, C9 |
| 2 | 18p | C_1206 | C10, C14 |
| 3 | 22u | CP_Elec_6.3x5.8 | C16, C17, C18 |
| 2 | 100 | R_1206 | R1, R2 |
| 12 | 470 | R_1206 | R3, R4, R5, R6, R7, R8, R9, R10 +4 |
| 7 | 10k | R_1206 | R15, R16, R17, R18, R19, R20, R21 |
| 2 | 36k | R_1206 | R22, R24 |
| 4 | 6k8 | R_1206 | R23, R25, R28, R32 |
| 4 | 47k | R_1206 | R26, R29, R30, R33 |
| 2 | 1k | R_1206 | R27, R31 |
Eurorack spinfx design files
The KiCad project lives in the grappendorf/eurorack-spinfx repository on GitHub; these links point at the commit this page was built from.
Eurorack spinfx: common questions
How big is the Eurorack spinfx PCB?
The Eurorack spinfx measures 79 × 107 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Eurorack spinfx?
79 components, from 33 distinct parts. The full bill of materials is listed on this page.
Where can I download the Eurorack spinfx design files?
From the grappendorf/eurorack-spinfx repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the Eurorack spinfx design in my own project?
The repository has no license, so all rights stay with grappendorf. Use it as a reference, and ask the author before reusing the design.
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