Solstrejf voiceboard core
About the Solstrejf voiceboard core PCB
Solstrejf voiceboard core is an open source PCB design by KamikazeVildsvin, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 119.4 × 83.8 mm, with 123 components from 46 distinct parts.
Other key parts include the AS3372E, L78L05, L79L05, TL072 and LM324. By type, the board carries 59 resistors, 37 capacitors, 8 ICs, 8 diodes, 6 test points and 4 connectors.
It belongs with the audio and robotics & motion designs in this gallery.
From the project
4 voice analog sinewave drone oscillator with modmatrix
I wanted the instrument to be playful and interactive. Four sine wave oscillators in itself are maybe not that interesting and can become static. A modulation matrix, which would allow for all four voices to modulate parameters like frequency and amplitude on all other voices would create more complex soundscapes. The basic idea and block diagram can be seen above, where four identical voice boards are connected to the mod-matrix board and a power supply/mixer board for output summation.
Main components on the Solstrejf voiceboard core
Solstrejf voiceboard core bill of materials (BOM)
123 components, 46 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | AS3372E | DIP-24_W7.62mm_Socket | U1 |
| 1 | L78L05 | TO-92_Inline | U2 |
| 1 | L79L05 | TO-92_Inline | U3 |
| 1 | TL072 | DIP-8_W7.62mm_Socket | U4 |
| 1 | LM324 | DIP-14_W7.62mm | U5 |
| 1 | ONESHOT | DIP-8_W7.62mm_Socket | U6 |
| 1 | L78L12 | TO-92_Inline | U7 |
| 1 | L79L12 | TO-92_Inline | U8 |
| 1 | PSU+Power Connector | IDC-Header_2x05_P2.54mm_Vertical | J1 |
| 1 | Mod-Matrix Connector | IDC-Header_2x08_P2.54mm_Vertical | J2 |
| 1 | Direct_Out | PinHeader_1x02_P2.54mm_Vertical | J3 |
| 1 | Front Panel Connector | IDC-Header_2x08_P2.54mm_Vertical | J4 |
| 1 | 100k | Potentiometer_Bourns_3296Y_Vertical | RV1 |
| 1 | +5V | TestPoint_Loop_D2.50mm_Drill1.0mm | TP1 |
| 2 | GND | TestPoint_Loop_D2.50mm_Drill1.0mm | TP2, TP5 |
| 1 | -5V | TestPoint_Loop_D2.50mm_Drill1.0mm | TP3 |
| 1 | VCA4_IN | TestPoint_Loop_D2.50mm_Drill1.0mm | TP4 |
| 1 | RES_CV | TestPoint_Loop_D2.50mm_Drill1.0mm | TP6 |
| 2 | 1N4001 | D_DO-41_SOD81_P10.16mm_Horizontal | D1, D2 |
| 6 | 1N4148 | D_DO-35_SOD27_P7.62mm_Horizontal | D3, D4, D5, D6, D7, D8 |
Show 26 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 20 | 100n | C_Disc_D5.0mm_W2.5mm_P5.00mm | C1, C2, C3, C5, C6, C7, C8, C13 +12 |
| 1 | 1n | C_Disc_D5.0mm_W2.5mm_P5.00mm | C4 |
| 4 | 47u 25V | CP_Radial_D5.0mm_P2.50mm | C9, C10, C15, C17 |
| 3 | 100u 25V | CP_Radial_D6.3mm_P2.50mm | C11, C12, C16 |
| 3 | 1u 25V | CP_Radial_D5.0mm_P2.50mm | C20, C27, C36 |
| 1 | 100p | C_Disc_D5.0mm_W2.5mm_P5.00mm | C21 |
| 3 | 470p | C_Disc_D5.0mm_W2.5mm_P5.00mm | C24, C25, C28 |
| 2 | 4n7 | C_Disc_D5.0mm_W2.5mm_P5.00mm | C30, C31 |
| 17 | 1k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1, R2, R3, R4, R10, R16, R19, R21 +9 |
| 2 | 22R | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R5, R6 |
| 1 | 680R | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R7 |
| 2 | 22k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R8, R9 |
| 11 | 20k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R11, R18, R23, R24, R25, R26, R28, R43 +3 |
| 6 | 10k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R12, R47, R48, R49, R50, R54 |
| 4 | 100k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R13, R14, R17, R53 |
| 1 | 1K8 | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R15 |
| 2 | 3k6 | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R20, R22 |
| 2 | 51k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R27, R33 |
| 1 | 1k6 | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R29 |
| 1 | 2k4 | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R32 |
| 1 | 15k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R35 |
| 4 | 68k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R36, R37, R38, R39 |
| 1 | 82k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R40 |
| 1 | 36k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R41 |
| 1 | 1k2 | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R45 |
| 1 | 91k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R56 |
Solstrejf voiceboard core design files
The KiCad project lives in the KamikazeVildsvin/Solstrejf repository on GitHub; these links point at the commit this page was built from.
Solstrejf voiceboard core: common questions
How big is the Solstrejf voiceboard core PCB?
The Solstrejf voiceboard core measures 119.4 × 83.8 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Solstrejf voiceboard core?
123 components, from 46 distinct parts. The full bill of materials is listed on this page.
Where can I download the Solstrejf voiceboard core design files?
From the KamikazeVildsvin/Solstrejf repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Solstrejf voiceboard core design in my own project?
Yes, under the terms of its GPL-3.0 license, which KamikazeVildsvin chose for the repository.
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