NJD-dub siren
About the NJD-dub siren PCB
NJD-dub siren is an open source PCB design by DeepFieldAudio, published on GitHub. It is a 2-layer board measuring 122 × 31 mm, with 46 components from 24 distinct parts.
By type, the board carries 20 resistors, 6 switches, 6 diodes, 6 capacitors, 4 transistors and 2 connectors.
From the project
All you need to build your own NJD dub siren!
All you have here is the work on wich i spent countless hours and that i'm really happy to share with you. If you are about to make your own version of this preamp, please share it Under the same conditions as i did. Also, if you happen to discover mistakes that i made, or ways to improve the design, or you just built your own NJD, then please share it with me and the rest of the world. I would love to see your builds!!
NJD-dub siren bill of materials (BOM)
46 components, 24 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | 2SA1015 | TO-92_Inline_Wide | Q1, Q2 |
| 2 | 2SC1815 | TO-92_Inline_Wide | Q3, Q4 |
| 2 | Conn_01x02_Pin | SolderWire-0.15sqmm_1x02_P4mm_D0.5mm_OD1.5mm | J2, J3 |
| 1 | 200k lin | SolderWire-0.25sqmm_1x06_P4.2mm_D0.65mm_OD1.7mm | RV1 |
| 1 | 10k | SolderWire-0.25sqmm_1x03_P4.2mm_D0.65mm_OD1.7mm | RV2 |
| 2 | SW_Rotary3x4 | 3P4T rotary switch | SW1, SW4 |
| 1 | SW_SPST | SolderWire-0.25sqmm_1x02_P4.2mm_D0.65mm_OD1.7mm | SW2 |
| 2 | SW_Push | SolderWire-0.25sqmm_1x02_P4.2mm_D0.65mm_OD1.7mm | SW3, SW5 |
| 1 | SW_SPDT | SolderWire-0.25sqmm_1x03_P4.2mm_D0.65mm_OD1.7mm | SW6 |
| 1 | LED | LED_D5.0mm | D1 |
| 1 | 4001 | D_DO-35_SOD27_P7.62mm_Horizontal | D2 |
| 4 | 1N4148 | D_DO-35_SOD27_P7.62mm_Horizontal | D3, D4, D5, D6 |
| 2 | 10µ | CP_Radial_D5.0mm_P2.50mm | C1, C2 |
| 1 | 100µ | CP_Radial_D5.0mm_P2.50mm | C3 |
| 1 | 100n | C_Rect_L7.2mm_W2.5mm_P5.00mm_FKS2_FKP2_MKS2_MKP2 | C4 |
| 2 | 10n | C_Rect_L7.2mm_W2.5mm_P5.00mm_FKS2_FKP2_MKS2_MKP2 | C5, C6 |
| 5 | 47k | R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R1, R7, R10, R19, R20 |
| 2 | 22k | R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R2, R8 |
| 4 | 10k | R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R3, R4, R9, R13 |
| 3 | 1k | R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R5, R6, R12 |
Show 4 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 2k2 | R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R11 |
| 2 | 33k | R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R14, R15 |
| 1 | 100k | R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R16 |
| 2 | 220k | R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R17, R18 |
NJD-dub siren design files
The KiCad project lives in the DeepFieldAudio/NJD-dub-siren repository on GitHub; these links point at the commit this page was built from.
NJD-dub siren: common questions
How big is the NJD-dub siren PCB?
The NJD-dub siren measures 122 × 31 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the NJD-dub siren?
46 components, from 24 distinct parts. The full bill of materials is listed on this page.
Where can I download the NJD-dub siren design files?
From the DeepFieldAudio/NJD-dub-siren repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the NJD-dub siren design in my own project?
The repository has no license, so all rights stay with DeepFieldAudio. Use it as a reference, and ask the author before reusing the design.