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BACKPLANE A

Desval27·FormantKO·system/BACKPLANE_A/BACKPLANE_A.kicad_pcb

BACKPLANE A PCB layout, top view — open source board by Desval27
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About the BACKPLANE A PCB

BACKPLANE A is an open source PCB design by Desval27, published on GitHub under the MIT license. It is a 2-layer board measuring 428.6 × 130.2 mm, with 49 components from 35 distinct parts.

By type, the board carries 21 connectors, 18 capacitors, 4 jumpers, 3 diodes and 3 resistors.

It belongs with the audio designs in this gallery.

From the project

Knock-off of the Elektor Formant Synthesizer project with the initial goal of being quasi-authentic and secondary goal undecided. Probably tweaks of some kind.

Components that are not easily sourcable are substitued. Substituted components or adapater boards are noted.

DIN 41617 connecters are replaced with DIN 41612 connectors (Type B 32-PIN). A backplane is included as part of the project to avoid the point-to-point backend wiring of the original. However, the current backplane does not currently offer more configurability compared to the original. It simply provides a secure connection and reduces wiring complexity and fragility.

BACKPLANE A, from the project README
From the project README

BACKPLANE A bill of materials (BOM)

49 components, 35 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
SLOT 1A
J1
1
SLOT 2A
J2
1
SLOT 3A
J3
1
SLOT 4A
J4
1
SLOT 5A
J5
1
SLOT 6A
J6
1
SLOT 1B
J7
1
SLOT 2B
J8
1
SLOT 3B
J9
1
SLOT 4B
J10
1
SLOT 5B
J11
1
SLOT 6B
J12
1
POWER OUT
J13
1
POWER IN
J14
1
KBINTF
J15
1
BUS CONNECTOR IN
J16
1
BUS CONNECTOR OUT
J17
1
KOV1
J18
1
GATE1
J19
1
KOV2
J20
Show 15 more
QtyPartRefs
1
GATE2
J21
1
KOV1
JP1
1
GATE1
JP2
1
KOV2
JP3
1
GATE2
JP4
3
1N4002
LED
D1, D2, D3
2
47µ
C1, C5
4
100µ
C2, C6, C7, C8
1
100N
47µ
C3
2
100N
100µ
C4, C9
7
100n
C10, C13, C14, C15, C16, C17, C18
2
100N
100n
C11, C12
1
3K9
680R
R1
1
3K9
150R
R2
1
2R7
680R
R3

BACKPLANE A design files

The KiCad project lives in the Desval27/FormantKO repository on GitHub; these links point at the commit this page was built from.

BACKPLANE A: common questions

How big is the BACKPLANE A PCB?

The BACKPLANE A measures 428.6 × 130.2 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the BACKPLANE A?

49 components, from 35 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 BACKPLANE A design files?

From the Desval27/FormantKO repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the BACKPLANE A design in my own project?

Yes, under the terms of its MIT license, which Desval27 chose for the repository.

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