Preamp ic4558
IagoAbreu-Core·preamp-ic4558-kicad
About the Preamp ic4558 PCB
Preamp ic4558 is an open source PCB design by IagoAbreu-Core, published on GitHub. It is a 2-layer board measuring 102.5 × 76 mm, with 18 components from 10 distinct parts.
Other key parts include the TL072. By type, the board carries 6 resistors, 5 capacitors, 2 connectors and 1 IC.
It belongs with the audio designs in this gallery.
From the project
A pre-amplifier circuit for guitar, using the RC4558 chip
The layout features standard input/output connections and hybrid components (THT and SMD), with a focus on ease of assembly and low manufacturing costs.

Main components on the Preamp ic4558
Preamp ic4558 bill of materials (BOM)
18 components, 10 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | TL072 | DIP-8_W7.62mm | U1 |
| 2 | AudioJack2 p10 | Jack_3.5mm_CUI_SJ-3523-SMT_Horizontal | J1, J2 |
| 4 | 50k | Potentiometer_Omeg_PC16BU_Vertical | RV1, RV2, RV3, RV4 |
| 2 | 100uF | CP_Radial_D10.0mm_P2.50mm | C1, C2 |
| 3 | 471uf | CP_Radial_D10.0mm_P2.50mm | C3, C4, C5 |
| 2 | 10k | R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R1, R2 |
| 1 | 1k | R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R3 |
| 1 | 2k7 | R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R4 |
| 1 | 220k | R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R5 |
| 1 | 100k | R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R6 |
Preamp ic4558 design files
The KiCad project lives in the IagoAbreu-Core/preamp-ic4558-kicad repository on GitHub; these links point at the commit this page was built from.
- Layoutamplificador_IC4558.kicad_pcb
- Schematicamplificador_IC4558.kicad_sch
Preamp ic4558: common questions
How big is the Preamp ic4558 PCB?
The Preamp ic4558 measures 102.5 × 76 mm, has 2 copper layers and is 1.564975 mm thick.
How many components are on the Preamp ic4558?
18 components, from 10 distinct parts. The full bill of materials is listed on this page.
Where can I download the Preamp ic4558 design files?
From the IagoAbreu-Core/preamp-ic4558-kicad repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Preamp ic4558 design in my own project?
The repository has no license, so all rights stay with IagoAbreu-Core. Use it as a reference, and ask the author before reusing the design.
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