Akashic Guitar effects circuit lookup
DISTFILTERVOL

Enclosure not stated · 3 knobs

Eff Dub Audio

The Snitch

Based on the ProCo RAT· 41 other boards clone it

Category
Distortion
Controls
Dist · Filter · Vol
Price
see vendor

From the vendor

There are many Rat clone projects out there, but this one is mine. This is a part-for-part clone of the original Rat circuit. There are no extra pots or switches…just three knobs of ass-kicking tone in a small PCB form factor. It’s laid out for 1N4148 / 1N914 diodes, but you could use pretty much whatever you want to mimic the various Rat version. My suggestions:

1N4148 / 1N914 – Classic Rat

LEDs (diffused) – Turbo Rat

BAT41 or similar Schottky diode – You Dirty Rat (please don’t waste a real Germanium diode on a YDR build)

1x 1N914 + 1x LED – Overpriced boutique Rat variant with an unnecessarily self-aggrandizing name

This board *should* fit in just about any standard enclosure larger than 1590A. The pots are not board-mounted, so you can cram this thing in all sorts of project spaces.

Rat Clone Project Files

Click here to download project files for The Snitch . What’s included:

Schematic Image

PCB Image (top layer)

Gerber files (to be used to order a set of PCBs)

Eagle CAD files (for making modifications of your own, if desired)

You can use the zipped gerber files to order from fab houses like JLCPCB , Elecrow, SeeedStudio, and many others. I’m working on a short guide on how to order PCBs, and when it’s done I’ll link it here.

You might also want to check out some of my fuzz-related or overdrive pedal projects.

Schematic

Schematic

The schematic is in the post. Open it at Eff Dub Audio. No KiCad fragment has been drawn for this circuit yet.

Parts list 32 rows

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Got parts in a drawer? See what you can build with them.

RefValueNormalizedTypeNotes
Resistors 12
R10100R100
R11100K100k
R12100K100k
R11M1M
R31K1k
R44747
R5560560
R61K1k
R71K51.5k
R81M1M
R910K10k
R21M1M
Capacitors 12
C122n22n
C21n1n
C4100p100p
C52u22.2u
C64u74.7u
C83n33.3n
C922n22n
C101u1u
C131u1u
C74u74.7u
C11100u100u
C333p33p
Diodes 3
D31N40011N4001
D11N41481N4148
D21N41481N4148
Transistors 1
Q12N54582N5458
ICs 1
IC1LM308NLM308N
Potentiometers 3
DistA100KA100kPotentiometer
FilterA100KA100kPotentiometer
VolA100KA100kPotentiometer

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