HardLabs

Eq

bubbajfett·kicad-guitar-pedals·Equalizer/eq/eq.kicad_pcb

Eq PCB layout, top view — open source board by bubbajfett

About the Eq PCB

Eq is an open source PCB design by bubbajfett, published on GitHub under the CC0-1.0 license. It is a 2-layer board measuring 59 × 56.6 mm, with 48 components from 22 distinct parts.

Other key parts include the TL074. By type, the board carries 22 resistors, 17 capacitors, 2 ICs and 1 connector.

It belongs with the audio designs in this gallery.

From the project

collection of guitar pedal PCB layouts in kicad

This is a 6-band equalizer based on a schematic in the PedalPCB site. This is really a nice pedal to have on the board, and I like it in the end of the chain, but not sure that is correct.

All registered trademarks are owned by their respective owners.

Main components on the Eq

TL074

Eq bill of materials (BOM)

48 components, 22 distinct parts.

QtyPartRefs
2
TL074
U1, U2
1
Conn_01x04_Pin
J1
6
B50K
RV1, RV2, RV3, RV4, RV5, RV6
1
100u
C1
2
100n
C2, C17
2
1u
C3, C14
2
220n
C4, C7
1
470n
C5
2
120n
C6, C9
3
68n
C8, C11, C13
1
33n
C10
1
15n
C12
2
10n
C15, C16
1
330K
R1
2
470K
R2, R21
5
470
R3, R6, R8, R10, R12
2
24K
R4, R5
2
22k
R7, R9
1
20k
R11
1
1k2
R13
Show 2 more
QtyPartRefs
6
10k
R14, R15, R16, R17, R18, R22
2
1k
R19, R20

Eq design files

The KiCad project lives in the bubbajfett/kicad-guitar-pedals repository on GitHub; these links point at the commit this page was built from.

Eq: common questions

How big is the Eq PCB?

The Eq measures 59 × 56.6 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Eq?

48 components, from 22 distinct parts. The full bill of materials is listed on this page.

Where can I download the Eq design files?

From the bubbajfett/kicad-guitar-pedals repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Eq design in my own project?

Yes, under the terms of its CC0-1.0 license, which bubbajfett chose for the repository.

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