HardLabs

Digisynth

kzalesak·Digisynth·Digisynth_PCB/Digisynth.kicad_pcb

Digisynth PCB layout, top view — open source board by kzalesak

About the Digisynth PCB

Digisynth is an open source PCB design by kzalesak, published on GitHub. It is a 2-layer board measuring 100 × 50 mm, with 44 components from 23 distinct parts.

Other key parts include the 40106. By type, the board carries 16 connectors, 10 resistors, 5 diodes, 5 capacitors, 2 switches and 2 test points.

It belongs with the audio designs in this gallery.

From the project

A digital Lunetta synth based on the 40106 inverter.

A simple Lunetta-type synthesiser based on the 40106 integrated circuit, designed to fit into a pocket, with many configurable options. Can be controlled by dials, light level and any resistive material. Contains a passive mixer and can utilise oscillator sync.

You are invited to reproduce the PCB's and experiment yourself.

Our pocket synth is based on the 40106 digital logic CMOS inverter, and has been inspired by Elliot Williams' great digital synthesizer series on Hackaday. It has a nice detailed explanation of how the synth operates, as well as many expansion circuits, including multi…

Digisynth, from the project README
From the project README

Main components on the Digisynth

40106

Digisynth bill of materials (BOM)

44 components, 23 distinct parts.

QtyPartRefs
1
40106
U1
5
Conn_02x02_Counter_Clockwise
J1, J4, J5, J8, J11
2
Conn_01x03_Female
J2, J7
2
Conn_02x03_Counter_Clockwise
J3, J6
2
Conn_02x04_Counter_Clockwise
J9, J10
1
AudioJack3_Ground
J12
2
Conn_01x01_Female
J13, J14
2
Conn_01x03
J15, J16
1
Battery
BT1
2
R_POT
RV1, RV2
1
SW_Push
SW1
1
SW_SPDT
SW2
2
TestPoint_2Pole
TP1, TP2
2
D
D1, D5
3
LED
D2, D3, D4
1
1u
C1
2
100n
C2, C3
1
10n
C4
1
C_Var (Fem pin header)
C5
2
R_PHOTO
R1, R3
Show 3 more
QtyPartRefs
2
1k
R2, R8
3
R
R4, R9, R10
3
10k
R5, R6, R7

Digisynth design files

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

Digisynth: common questions

How big is the Digisynth PCB?

The Digisynth measures 100 × 50 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Digisynth?

44 components, from 23 distinct parts. The full bill of materials is listed on this page.

Where can I download the Digisynth design files?

From the kzalesak/Digisynth repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Digisynth design in my own project?

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

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