Kosmo Noise
DavesKosmoModules·Rain-Noise
About the Kosmo Noise PCB
Kosmo Noise is an open source PCB design by DavesKosmoModules, published on GitHub under the CC0-1.0 license. It is a 2-layer board measuring 21 × 176 mm, with 51 components from 20 distinct parts.
Other key parts include the TL074. By type, the board carries 20 resistors, 17 capacitors, 5 connectors, 2 ICs, 2 diodes and 1 transistor.
From the project
- Noise generator - White - Pink - Red / Brown - Violet
- Noise generator - White - Pink - Red / Brown - Violet
Contained are schematics & gerber files for pcb fabrication of both electrical and front panel. This is sutiable for entry level however a basic level of electronics, soldering, fault finding, and some basic tools are required.
To calibrate, four pots can be accessed through the holes on the front plate.
- Adjust the white pot first as this noise if filtered for the remaining sources, looking for an output of +- 5V. - Adjust the three remaining pots for the respective output levels.

Main components on the Kosmo Noise
Kosmo Noise bill of materials (BOM)
51 components, 20 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | TL074 | DIP-14_W7.62mm_Socket_LongPads | U1, U2 |
| 1 | 2N3904 | TO-92_Inline_Wide | Q1 |
| 4 | AudioJack2_SwitchT | Jack_6.35mm_PJ_629HAN | J1, J2, J3, J5 |
| 1 | Synth_power_2x5_passive | Power_Header | J6 |
| 4 | 1M | Potentiometer_Bourns_3296W_Vertical_screw_centered | RV1, RV2, RV3, RV4 |
| 2 | 1N5817 | D_DO-41_SOD81_P10.16mm_Horizontal | D1, D2 |
| 4 | 1uF | C_Disc_D3.0mm_W1.6mm_P2.50mm | C1, C3, C4, C10 |
| 1 | 3.3nF | C_Disc_D3.0mm_W1.6mm_P2.50mm | C2 |
| 1 | 220nF | C_Disc_D3.0mm_W1.6mm_P2.50mm | C5 |
| 3 | 47nF | C_Disc_D3.0mm_W1.6mm_P2.50mm | C6, C7, C8 |
| 1 | 33nF | C_Disc_D3.0mm_W1.6mm_P2.50mm | C9 |
| 3 | 10uF | CP_Radial_D6.3mm_P2.50mm | C17, C18, c1 |
| 4 | 0.1uF | C_Disc_D3.0mm_W1.6mm_P2.50mm | C21, C22, C23, C24 |
| 3 | 470k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1, R2, R8 |
| 1 | 6k8 | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R3 |
| 8 | 10k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R4, R6, R9, R12, R13, R14, R15, R16 |
| 1 | 3k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R5 |
| 5 | 1k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R7, R22, R23, R24, R26 |
| 1 | 300 | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R10 |
| 1 | 2.2M | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R11 |
Kosmo Noise design files
The KiCad project lives in the DavesKosmoModules/Rain-Noise repository on GitHub; these links point at the commit this page was built from.
- LayoutKosmo Noise.kicad_pcb
Kosmo Noise: common questions
How big is the Kosmo Noise PCB?
The Kosmo Noise measures 21 × 176 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Kosmo Noise?
51 components, from 20 distinct parts. The full bill of materials is listed on this page.
Where can I download the Kosmo Noise design files?
From the DavesKosmoModules/Rain-Noise repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the Kosmo Noise design in my own project?
Yes, under the terms of its CC0-1.0 license, which DavesKosmoModules chose for the repository.