Dual vca kosmo
About the Dual vca kosmo PCB
Dual vca kosmo is an open source PCB design by Krakenpine, published on GitHub. It is a 2-layer board measuring 100 × 200 mm, with 72 components from 27 distinct parts.
Other key parts include the TL074 and AS3360. By type, the board carries 41 resistors, 11 connectors, 6 diodes, 4 ICs, 3 capacitors and 2 transistors.
It belongs with the audio designs in this gallery.
From the project
Synth modules?
Simple dual VCA module in Kosmo format. Files in KiCad format with schematic as pdf. Jack pcb and main pcb are connected with a 10 pin flat cable, like the one powering eurorack/kosmo modules. Don't accidentally connect power to that connector, otherwise this should be quite straightforward if you have build anything previously. This exact version of pcb has not been tested, first version had couple of easily fixable probles that I hopefully fixed also in the kicad file.
Main components on the Dual vca kosmo
Dual vca kosmo bill of materials (BOM)
72 components, 27 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 3 | TL074 | DIP-14_W7.62mm | U1, U2, U4 |
| 1 | AS3360 | DIP-14_W7.62mm | U3 |
| 2 | 2N3904 | TO-92_Inline_Wide | Q1, Q2 |
| 3 | Conn_02x05_Odd_Even | PinHeader_2x05_P2.54mm_Vertical | J1, J2, J11 |
| 1 | cv1 | Jack_6.5mm LMNC | J3 |
| 1 | cv2 | Jack_6.5mm LMNC | J4 |
| 1 | cvdual | Jack_6.5mm LMNC | J5 |
| 1 | mixout | Jack_6.5mm LMNC | J6 |
| 1 | out1 | Jack_6.5mm LMNC | J7 |
| 1 | out2 | Jack_6.5mm LMNC | J8 |
| 1 | in1 | Jack_6.5mm LMNC | J9 |
| 1 | in2 | Jack_6.5mm LMNC | J10 |
| 1 | CV1 | Potentiometer_Alpha_RD901F-40-00D_Single_Vertical_CircularHoles | RV1 |
| 1 | CV1-attn | Potentiometer_Alpha_RD901F-40-00D_Single_Vertical_CircularHoles | RV2 |
| 1 | CV2 | Potentiometer_Alpha_RD901F-40-00D_Single_Vertical_CircularHoles | RV3 |
| 1 | CV2-attn | Potentiometer_Alpha_RD901F-40-00D_Single_Vertical_CircularHoles | RV4 |
| 1 | CV-dual | Potentiometer_Alpha_RD901F-40-00D_Single_Vertical_CircularHoles | RV5 |
| 2 | LED | LED_D5.0mm | D1, D2 |
| 4 | BAT42 | D_DO-35_SOD27_P7.62mm_Horizontal | D3, D4, D5, D6 |
| 1 | 4.7n | C_Disc_D5.0mm_W2.5mm_P5.00mm | C1 |
Show 7 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | C_Polarized | C_Radial_D5.0mm_H7.0mm_P2.00mm | C2, C3 |
| 28 | 100k | Omaresistor2 | R1, R2, R3, R4, R5, R6, R7, R8 +20 |
| 2 | 120k | Omaresistor2 | R11, R13 |
| 2 | 20k | Omaresistor2 | R15, R18 |
| 2 | 5k | Omaresistor2 | R16, R19 |
| 5 | 1k | Omaresistor2 | R25, R26, R29, R30, R36 |
| 2 | 22k | Omaresistor2 | R42, R43 |
Dual vca kosmo design files
The KiCad project lives in the Krakenpine/krakenpine-synthing repository on GitHub; these links point at the commit this page was built from.
Dual vca kosmo: common questions
How big is the Dual vca kosmo PCB?
The Dual vca kosmo measures 100 × 200 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Dual vca kosmo?
72 components, from 27 distinct parts. The full bill of materials is listed on this page.
Where can I download the Dual vca kosmo design files?
From the Krakenpine/krakenpine-synthing repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Dual vca kosmo design in my own project?
The repository has no license, so all rights stay with Krakenpine. Use it as a reference, and ask the author before reusing the design.
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