HardLabs

OnerLAB BoCu

nahsteoner·minipultec_eurorack·hardware/OnerLAB_BoCu.kicad_pcb

OnerLAB BoCu PCB layout, top view — open source board by nahsteoner

About the OnerLAB BoCu PCB

OnerLAB BoCu is an open source PCB design by nahsteoner, published on GitHub. It is a 2-layer board measuring 78 × 118 mm, with 120 components from 40 distinct parts.

Other key parts include the NE5532DR. By type, the board carries 47 resistors, 42 capacitors, 13 diodes, 5 ICs, 5 connectors and 2 switches.

It belongs with the audio designs in this gallery.

From the project

mini eq style pultec for modular

Module Eurorack stéréo de fin de chaîne : EQ type Pultec (sans tubes) + saturation douce à diodes + sorties jack 6,35 mm balanced.

- Format : 16 HP, 3U, alimentation ±12 V (header Doepfer 10 broches) - Entrées : 2 × jack 3,5 mm mono (standard Eurorack), normalisées L → R - Sorties : 2 × jack 6,35 mm TRS balanced (L / R) - PCB : KiCad 7, netlist complète, non routé (placement fin + autorouter à ta main) - Fab : pensé JLCPCB / LCSC, SMD 0603/0805 + SOIC-8

OnerLAB BoCu, from the project README
From the project README

Main components on the OnerLAB BoCu

NE5532DR

OnerLAB BoCu bill of materials (BOM)

120 components, 40 distinct parts — part numbers from the project's BOM.

QtyPartRefs
5
NE5532DR
U1, U2, U3, U4, U5
1
IN_L_3.5
J1
1
IN_R_3.5
J2
1
OUT_L_6.35
J3
1
OUT_R_6.35
J4
1
EURORACK_10P
J5
1
B50K_BOOST
RV1
1
B50K_CUT
RV2
1
B50K_MID
RV3
1
B50K_HIGH
RV4
1
FREQ_L
SW1
1
FREQ_R
SW2
2
BAT54S
D4, D9
6
1N4148W
D5, D6, D7, D13, D14, D15
2
C72038
LED_SAT
D8, D16
2
SS14
D10, D11
1
C72038
LED_PWR
D12
2
C16762
600R@100MHz
FB1, FB2
12
100N
100n
C2, C4, C5, C6, C7, C8, C9, C10 +4
8
10U
10u
C15, C27, C28, C29, C41, C42, C80, C81
Show 20 more
QtyPartRefs
2
100N
100n
C16, C30
4
10N
10n
C17, C26, C31, C40
2
82N
82n
C18, C32
2
39N
39n
C19, C33
2
27N
27n
C20, C34
2
8.2N
8.2n
C21, C35
2
1u
C22, C36
2
470N
470n
C23, C37
2
390N
390n
C24, C38
2
150N
150n
C25, C39
13
10K
10k
R1, R7, R8, R9, R12, R19, R20, R30 +5
6
100K
100k
R2, R22, R24, R25, R45, R47
4
1k
R3, R6, R26, R29
4
4.7K
4.7k
R4, R5, R27, R28
2
15K
15k
R10, R33
4
2.2K
2.2k
R11, R15, R34, R38
4
22K
22k
R13, R14, R36, R37
2
2.7K
2.7k
R16, R39
4
33K
33k
R17, R18, R40, R41
4
220R
R21, R23, R44, R46

OnerLAB BoCu design files

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

OnerLAB BoCu: common questions

How big is the OnerLAB BoCu PCB?

The OnerLAB BoCu measures 78 × 118 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the OnerLAB BoCu?

120 components, from 40 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 OnerLAB BoCu design files?

From the nahsteoner/minipultec_eurorack repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the OnerLAB BoCu design in my own project?

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

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