Preamp Board
About the Preamp Board
Preamp Board is an open source PCB design by colektamu, published on GitHub. It is a 2-layer board measuring 81.3 × 68.6 mm, with 39 components from 21 distinct parts.
Other key parts include the OPA1656ID. By type, the board carries 18 resistors, 13 capacitors, 3 connectors and 2 ICs.
From the project
Files from 403 and 404
Main components on the Preamp Board
Preamp Board bill of materials (BOM)
39 components, 21 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | OPA1656ID | SOIC-8_3.9x4.9mm_P1.27mm | U1, U2 |
| 2 | AUDIOJACK3_GROUND AudioJack3_Ground | Jack_3.5mm_CUI_SJ1-3523N_Horizontal | J1, J3 |
| 1 | CONN_01X02 Conn_01x02 | 691137710002 | J2 |
| 3 | 10K 10k | Potentiometer_Alps_RK163_Single_Horizontal | RV1, RV2, RV3 |
| 2 | 2.2μF | C_Rect_L19.0mm_W5.0mm_P15.00mm_MKS4 | C1, C13 |
| 1 | 100NF 100nF | C_Rect_L7.2mm_W2.5mm_P5.00mm_FKS2_FKP2_MKS2_MKP2 | C2 |
| 1 | 2.2NF 2.2nF | C_Rect_L7.2mm_W2.5mm_P5.00mm_FKS2_FKP2_MKS2_MKP2 | C3 |
| 1 | 22PF 22pF | C_Disc_D3.0mm_W1.6mm_P2.50mm | C4 |
| 3 | 10μF | CP_Radial_D5.0mm_P2.00mm | C5, C7, C10 |
| 3 | 0.1μF | C_Disc_D3.0mm_W1.6mm_P2.50mm | C6, C8, C9 |
| 1 | 15NF 15nF | C_Rect_L7.2mm_W2.5mm_P5.00mm_FKS2_FKP2_MKS2_MKP2 | C11 |
| 1 | 22NF 22nF | C_Rect_L7.2mm_W2.5mm_P5.00mm_FKS2_FKP2_MKS2_MKP2 | C12 |
| 2 | 100K 100k | R_1206_3216Metric | R1, R2 |
| 2 | 5k | R_1206_3216Metric | R3, R7 |
| 2 | 2.8K 2.8k | R_1206_3216Metric | R4, R8 |
| 1 | 22K 22k | R_1206_3216Metric | R5 |
| 1 | 4.7K 4.7k | R_1206_3216Metric | R6 |
| 4 | 47K 47k | R_1206_3216Metric | R9, R10, R12, R14 |
| 2 | 3.6K 3.6k | R_1206_3216Metric | R11, R13 |
| 1 | 15K 15k | R_1206_3216Metric | R15 |
Show 1 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 3 | 10K 10k | R_1206_3216Metric | R16, R17, R18 |
Preamp Board design files
The KiCad project lives in the colektamu/ECEN404-2026SP-TIAmplifier repository on GitHub; these links point at the commit this page was built from.
Preamp Board: common questions
How big is the Preamp Board?
The Preamp Board measures 81.3 × 68.6 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Preamp Board?
39 components, from 21 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 Preamp Board design files?
From the colektamu/ECEN404-2026SP-TIAmplifier 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 Preamp Board design in my own project?
The repository has no license, so all rights stay with colektamu. Use it as a reference, and ask the author before reusing the design.
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