Baby 8
About the Baby 8 PCB
Baby 8 is an open source PCB design by mzuelch, published on GitHub under the MIT license. It is a 2-layer board measuring 68.6 × 107.3 mm, with 62 components from 34 distinct parts.
Other key parts include the TL072CDT, 4030, AMS1117-5.0 and LM7809_TO220. By type, the board carries 16 diodes, 12 connectors, 10 resistors, 9 capacitors, 4 ICs and 3 switches.
It belongs with the audio designs in this gallery.
From the project
Analog Synth Eurorack Modules
Main components on the Baby 8
Baby 8 bill of materials (BOM)
62 components, 34 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | TL072CDT 4093 | DIP-14_W7.62mm_Socket_LongPads | U1 |
| 1 | 4030 | DIP-14_W7.62mm_Socket_LongPads | U2 |
| 1 | AMS1117-5.0 4017 | DIP-16_W7.62mm_Socket_LongPads | U3 |
| 1 | LM7809_TO220 | TO-220-3_Vertical | U4 |
| 1 | Power | IDC-Header_2x08_P2.54mm_Vertical | J1 |
| 1 | CV Out | PJ-301-M-12 | J2 |
| 1 | CLK In | PJ-301-M-12 | J3 |
| 1 | Reset | PJ-301-M-12 | J4 |
| 1 | Gate 1 | PJ-301-M-12 | J5 |
| 1 | Gate 2 | PJ-301-M-12 | J6 |
| 1 | Gate 3 | PJ-301-M-12 | J7 |
| 1 | Gate 4 | PJ-301-M-12 | J8 |
| 1 | Gate 5 | PJ-301-M-12 | J9 |
| 1 | Gate 6 | PJ-301-M-12 | J10 |
| 1 | Gate 7 | PJ-301-M-12 | J11 |
| 1 | Gate 8 | PJ-301-M-12 | J12 |
| 8 | 500kB | Potentiometer_Alpha_RD901F-40-00D_Single_Vertical | RV1, RV2, RV3, RV4, RV5, RV6, RV7, RV8 |
| 1 | Hold | SMTS-1xx-Solder | SW1 |
| 1 | Hold | SW_PUSH_6mm_H13mm | SW2 |
| 1 | Step | SW_PUSH_6mm_H13mm | SW3 |
Show 14 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 4 | BAV99 1N4148 | D_DO-35_SOD27_P2.54mm_Vertical_KathodeUp | D1, D2, D5, D6 |
| 4 | 1N4148 | D_DO-35_SOD27_P2.54mm_Vertical_KathodeUp | D3, D4, D7, D8 |
| 2 | C8598 LED | LED_D3.0mm | D9, D10 |
| 6 | LED | LED_D3.0mm | D11, D12, D13, D14, D15, D16 |
| 1 | 100UF/6.3V 100nF | C_Rect_L7.0mm_W2.0mm_P5.00mm | C1 |
| 1 | 100nF | C_Rect_L7.0mm_W2.0mm_P5.00mm | C2 |
| 4 | 10UF/16V 100nF | C_Rect_L7.0mm_W2.0mm_P5.00mm | C3, C4, C5, C7 |
| 1 | 100N 100nF | C_Rect_L7.0mm_W2.0mm_P5.00mm | C6 |
| 1 | 100N 10µF/50V | CP_Radial_D5.0mm_P2.50mm | C8 |
| 1 | 10µF/50V | CP_Radial_D5.0mm_P2.50mm | C9 |
| 2 | 3K3 100k | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1, R2 |
| 4 | 33K 120R | R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical | R3, R4, R7, R8 |
| 1 | 7K5 120R | R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical | R5 |
| 3 | 10K 120R | R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical | R6, R9, R10 |
Baby 8 design files
The KiCad project lives in the mzuelch/CATs-Eurosynth repository on GitHub; these links point at the commit this page was built from.
Baby 8: common questions
How big is the Baby 8 PCB?
The Baby 8 measures 68.6 × 107.3 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Baby 8?
62 components, from 34 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 Baby 8 design files?
From the mzuelch/CATs-Eurosynth repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.
Can I use the Baby 8 design in my own project?
Yes, under the terms of its MIT license, which mzuelch chose for the repository.
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