Akashic Guitar effects PCB lookup
BASSGAINMIDTREBLEVOL

125B · 5 knobs

PCB Guitar Mania

Poly-pig

Based on the Pigtronix Poly Saturators

Category
Distortion· Versatile overdrive/distortion
Controls
Bass · Gain · Mid · Treble · Vol
Difficulty
Average
Price
€11.90out of stock

Heads up Builders widely report inconsistent quality from PCB Guitar Mania boards, and whether a given board works is a gamble. Read recent forum reports before ordering.

From the vendor

Project overview

This circuit delivers everything from subtle overdrive to heavy distortion. Inspired by Pigtronix Poly Saturators, this versatile and multifaceted board was made for any type of music and player.

Introduction

The Poly Pig is a dirty, chunky, snarly creature that can be tamed to become the most docile and fluffy mate. Get everything from face-melting distortion to mild overdrive with hi-fi definition and clarity.

Its unique JRC4558D-powered EQ circuits will allow you to have all the accuracy you need to shape your frequencies, and the A-Class A, JFET front end assures you a wide range of warm, tube-flavored gain.

This pedal is perfect for detuning and grinding; we warn you: if you piss off the pig, things will get serious! With high gain settings, it squeals and growls like a wild beast.

When the gain is backed off, the Poly Pig emits a bluesy and gritty soft grumble. It becomes wholly docile and cleans up nicely by backing off the guitar volume, making it highly versatile and usable.

This compact pedal plays well with guitar, bass, and synth and sounds great while doing it. It’s your choice: domesticate the beast or explore its wildest side!

Controls

• Bass

• Gain

• Mid

• Treble

• Vol

For further analysis on this circuit, take a look at this thread on Free Stomp Boxes Forum: Poly Saturator Schematics and Poly Saturator.

For any technical questions regarding this build, don’t forget to check out our Facebook Group and our forum at Free Stomp Boxes.

Poly Pig – Building Docs

Poly Pig – Drilling template

Schematic

The schematic is in the vendor's build document, page 5. Open the build document. No KiCad fragment has been drawn for this circuit yet.

Parts list 64 rows

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RefValueNormalizedTypeNotes
Resistors 35
R312m20.0022
R3210m10M
R110m10M
R33150r150
R210k10k
R344k74.7k
R3560k560k
R35100k100k
R42m20.0022
R36100k100k
R527k27k
R651k51k
R71k1k
R84k74.7k
R96k86.8k
R1051k51k
R11130k130k
R12130k130k
R13130k130k
R14130k130k
R15100k100k
R16100k100k
R17100k100k
R1882k82k
R1915k15k
R2010k10k
R2110k10k
R2239k39k
R232k72.7k
R241k51.5k
R25470r470
R26100k100k
R271k1k
R28470r470
R29100k100k
Capacitors 15
C168n68n
C4250p250p
C5330n330n
C6180n180n
C7560p560p
C88n28.2n
C933n33n
C10100n100n
C11220n220n
C12220n220n
C1547p47p
C2100u100u
C32u22.2u
C131u1u
C142u22.2u
Diodes 2
D01N58171N5817
D19v19V1
Transistors 1
Q1J201J201
ICs 5
IC1CD4049UBECD4049UBE
IC2TL072TL072
IC3JRC4558JRC4558
IC4JRC4558JRC4558
IC5JRC4558JRC4558
Potentiometers 5
BASS100KBB100kPotentiometer
GAIN1MAA1MPotentiometer
MID100KBB100kPotentiometer
TREBLE100KBB100kPotentiometer
VOL100KBB100kPotentiometer
Jacks & sockets 1
J201Q1Q1