Voltage Processor
About the Voltage Processor PCB
Voltage Processor is an open source PCB design by JopjeKnopje, published on GitHub. It is a 2-layer board measuring 25.4 × 100 mm, with 31 components from 9 distinct parts.
Other key parts include the TL074. By type, the board carries 16 resistors, 6 capacitors, 5 connectors and 1 IC.
It belongs with the audio designs in this gallery.
From the project
opamp based utility module for eurorack
A eurorack module that outputs the sum and difference of two inputs, you can also add a constant DC offset to the summing output.
Main components on the Voltage Processor
Voltage Processor bill of materials (BOM)
31 components, 9 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | TL074 | DIP-14_W7.62mm | U1 |
| 4 | PJ301M-12 | PJ301M-12 | J1, J2, J4, J5 |
| 1 | Eurorack power | IDC-Header_2x05_P2.54mm_Vertical | J3 |
| 3 | 100K 100k | trimmer_alps-rk09k1130ah1 | RV1, RV2, RV3 |
| 4 | 0.1UF 0.1uF | C_Disc_D5.0mm_W2.5mm_P2.50mm | C1, C2, C3, C4 |
| 2 | 47UF 47uF | CP_Radial_D5.0mm_P2.00mm | C5, C6 |
| 12 | 100K 100k | R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R1, R2, R3, R4, R5, R6, R7, R8 +4 |
| 2 | 1k | R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R13, R14 |
| 2 | 10K 10k | R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R15, R16 |
Voltage Processor design files
The KiCad project lives in the JopjeKnopje/VoltageProcessor repository on GitHub; these links point at the commit this page was built from.
- LayoutVoltageProcessor.kicad_pcb
- SchematicVoltageProcessor.kicad_sch
- BOMbom.csv
Voltage Processor: common questions
How big is the Voltage Processor PCB?
The Voltage Processor measures 25.4 × 100 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Voltage Processor?
31 components, from 9 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the Voltage Processor design files?
From the JopjeKnopje/VoltageProcessor repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the Voltage Processor design in my own project?
The repository has no license, so all rights stay with JopjeKnopje. Use it as a reference, and ask the author before reusing the design.
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