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Rat

Network-Direction·Audio-Effect-Pedals·pedals/ProCo RAT/rat.kicad_pcb

Rat PCB layout, top view — open source board by Network-Direction

About the Rat PCB

Rat is an open source PCB design by Network-Direction, published on GitHub. It is a 2-layer board measuring 46.7 × 37.7 mm, with 37 components from 28 distinct parts.

Other key parts include the OP07CP. By type, the board carries 13 capacitors, 13 resistors, 3 connectors, 3 diodes, 1 IC and 1 transistor.

It belongs with the audio designs in this gallery.

From the project

Guitar pedal schematics and resources

- [x] Schematic Drawn - [x] Tested on breadboard - [x] PCB designed - [x] Gerbers created

http://beavisaudio.com/schematics/ProCo-Rat-II-Distortion-Schematic.htm

The RAT is made of four main stages: Power Supply Input/Clipping Tone Control Output

The power supply is simple, providing both +9v and +4.5v. 9 volts to power the opamp and the transistor, and 4.5v to bias the input signal.

Rat, from the project README
From the project README

Main components on the Rat

OP07CP

Rat bill of materials (BOM)

37 components, 28 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
OP07CP
U1
1
J201
Q1
1
+9v
J1
1
In
J2
1
Out
J3
2
B100K
RV1, RV2
1
A100K
RV3
1
1N4002
D1
2
1N4148
D2, D3
1
100uF
C1
1
100nF
C2
2
1uF
C3, C13
2
22nF
C4, C12
1
1nF
C5
1
30pF
C6
1
100pF
C7
2
4.7uF
C8, C10
1
2.2uF
C9
1
3.3nF
C11
2
47
R1, R7
Show 8 more
QtyPartRefs
2
100K
R2, R3
2
2M
R4, R5
2
1K
R6, R9
1
560
R8
1
1K5
R10
1
3M9
R11
1
1M2
R12
1
10K
R13

Rat design files

The KiCad project lives in the Network-Direction/Audio-Effect-Pedals repository on GitHub; these links point at the commit this page was built from.

Rat: common questions

How big is the Rat PCB?

The Rat measures 46.7 × 37.7 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Rat?

37 components, from 28 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 Rat design files?

From the Network-Direction/Audio-Effect-Pedals 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 Rat design in my own project?

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

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