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LFO THT

BruteClaw·Analog-Synth·Through Hole Designs/LFO_THT/LFO_THT.kicad_pcb

LFO THT PCB layout, top view — open source board by BruteClaw
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About the LFO THT PCB

LFO THT is an open source PCB design by BruteClaw, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 100 × 110 mm, with 79 components from 42 distinct parts.

Other key parts include the ICM7555, LM741 and TL074. By type, the board carries 35 resistors, 13 capacitors, 11 connectors, 5 diodes, 4 ICs and 3 transistors.

It belongs with the audio designs in this gallery.

From the project

EuroRack sytle analog synthasizer designs

These are designs for EuroRack compatable synthasizer modules.

Each module is designed as a seperate project in KiCAD Each folder includes a BOM from Mouser.com, the Gerber Files if you just want to have a board printed and a PDF of the schematic.

I have taken insparation from all over the web including Music From Outer Space, Yusynth and Look Mom no Computer. Some designs are outright copies of their schematic with my board layout design.

Main components on the LFO THT

ICM7555LM741TL074

LFO THT bill of materials (BOM)

79 components, 42 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ICM7555
U1
1
LM741
U2
2
TL074
U3, U4
1
BS170
Q1
1
BC557
Q2
1
2N3904
Q3
6
AudioJack1_Switch
J1, J4, J5, J6, J10, J11
2
Conn_01x12
J2, J3
1
Conn_02x08_Odd_Even
J7
2
Conn_01x07
J8, J9
2
47K
RV1, RV3
2
10K Lin
RV2, RV6
2
10K
RV4, RV5
1
50K Lin
RV7
1
SW_DPDT_x2
SW1
1
LED
D1
4
1N4148
D2, D3, D4, D5
1
47nF
C1
2
10nF
C2, C3
1
10uF
C4
Show 22 more
QtyPartRefs
1
1uF
C5
1
1nF
C6
1
120pF
C7
4
100uF
C8, C10, C11, C12
2
22uF
C9, C13
4
10K
R1, R3, R33, R34
5
1K
R2, R13, R25, R28, R32
1
12K
R4
1
8K2
R5
1
820
R6
8
100K
R7, R8, R9, R11, R12, R21, R29, R30
1
27K
R10
3
100K 1%
R14, R17, R18
1
47K 1%
R15
2
200K 1%
R16, R19
2
150K
R20, R24
1
22K
R22
1
2K7
R23
1
1K5
R26
1
15K
R27
1
4K7
R31
1
47K
R35

LFO THT design files

The KiCad project lives in the BruteClaw/Analog-Synth repository on GitHub; these links point at the commit this page was built from.

LFO THT: common questions

How big is the LFO THT PCB?

The LFO THT measures 100 × 110 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the LFO THT?

79 components, from 42 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 LFO THT design files?

From the BruteClaw/Analog-Synth 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 LFO THT design in my own project?

Yes, under the terms of its GPL-3.0 license, which BruteClaw chose for the repository.

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