HardLabs

07 seq10

bmurauer·cynthia·kosmo/kosmo_seq10/schematics/07_seq10.kicad_pcb

07 seq10 PCB layout, top view — open source board by bmurauer

About the 07 seq10 PCB

07 seq10 is an open source PCB design by bmurauer, published on GitHub. It is a 2-layer board measuring 40 × 108 mm, with 70 components from 18 distinct parts.

Other key parts include the TL072 and CD4017. By type, the board carries 23 resistors, 19 diodes, 8 transistors, 5 capacitors, 3 connectors and 2 ICs.

It belongs with the audio designs in this gallery.

From the project

Plans for my modular synthesizer

Plans for my modular synthesizer, named Cynthia.

I have split the modules into folders with numbered names. These numbers only correspond to the order that I included them into this project. Every project should at least contain: - a README.md with more information about the module - schematics for the schematics, made in KiCAD - stripboard for the design of the stripboard (you don't need this if you order proper PCBs). I use DIY Layout Creator for this. - panel for the Kosmo-format (20cm height) panels. I use a custom template for OpenSCAD which can be found in lib/kosmo.scad. On linux, you…

Main components on the 07 seq10

TL072CD4017

07 seq10 bill of materials (BOM)

70 components, 18 distinct parts.

QtyPartRefs
1
TL072
U1
1
CD4017
U2
8
BC848
Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8
1
Conn_01x10_Pin
J1
1
Gate In
J2
1
CV Out
J3
8
100k
RV1, RV2, RV3, RV4, RV5, RV6, RV7, RV10
1
~
SW2
1
SW_SPDT_312
SW3
11
1N4148
D1, D3, D5, D6, D7, D8, D10, D12 +3
8
LED
D2, D4, D9, D11, D13, D15, D17, D19
2
47uF
C1, C2
3
100nF
C3, C4, C5
11
100k
R1, R3, R4, R6, R7, R8, R10, R12 +3
9
1k
R2, R5, R9, R11, R13, R16, R17, R21 +1
1
68k
R14
1
51k
R18
1
18k
R19

07 seq10 design files

The KiCad project lives in the bmurauer/cynthia repository on GitHub; these links point at the commit this page was built from.

07 seq10: common questions

How big is the 07 seq10 PCB?

The 07 seq10 measures 40 × 108 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the 07 seq10?

70 components, from 18 distinct parts. The full bill of materials is listed on this page.

Where can I download the 07 seq10 design files?

From the bmurauer/cynthia repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the 07 seq10 design in my own project?

The repository has no license, so all rights stay with bmurauer. Use it as a reference, and ask the author before reusing the design.

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