Akashic Guitar effects circuit lookup
DIVMASTERMULTIPREAMPLAGTIMETRIGGERFREQ1FREQ2FREQ3WAVESHAPERESPONSELOOPTRACK

1590BB · 12 knobs

PCB Guitar Mania

ShoeMan

Based on the Schumann PLL· 2 other boards clone it

Category
Ring Mod / Synth· Analog Fuzz harmonizer
Controls
Div · Master · Multi · Preamp · Lagtime · Trigger · Freq1 · Freq2 · Freq3 · Waveshape · Response · Looptrack
Difficulty
Advanced
Price
€19.90out 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:

Shoeman is one of the coolest, rarest, and most sought effects pedals ever made. This absolute unit of pure genius is full of more options than any pedal probably should have. An analog harmonizer that turns your input signal into a square wave and then launches it through a multiplier and divider that adds intervals to your note, sending your signal into the far reaches of space and beyond.

Introduction

This crazy analog fuzz harmonizer turns your guitar or any other instrument into a badass chord machine that allows control over each voice independently with specific knobs. Plus, the Looptrack control lets you decide just how accurately it follows your playing. And the best part? The controls are super interactive with each other, making for some seriously cool sound experimentation.

I’ve been playing around with mine ever since it was created, and let me tell you, this thing has limitless potential. I mean, with 14 potentiometers and 16 switches, you can create an infinite amount of sounds and chord combinations. And the best part is, the more you play with it, the more you discover just how versatile it is. It’s like a never-ending journey of sound exploration; the possibilities are truly endless.

Controls

Potentiometers

• Preamp

• Trigger

• Clean

• Lootrack

• Response

• Lagtime

• Freq1

• Freq2

• Freq3

• Freq4

• Multi

• Div

• Master

• SQ-wave

• Waveshape

Switches

• D-On

• M-ON

• M-ENABLE

• D-ENABLE

• M-PHASE

• D-PHASE

• BASS-INPUT

• Loopspeed

• 1-2-3 A

• 1-2-3 B

• Freq

• DRONE-FS

• Momentary

• BYPASS

• Multiplier

• Divider

For further analysis on this circuit take a look at this thread on Free Stomp Boxes Forum.

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

Shoeman – Building Docs

Shoeman – Drilling template

Schematic

The schematic is in the vendor's build document, page 7. Open the build document. No KiCad fragment has been drawn for this circuit yet.

Parts list 70 rows

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RefValueNormalizedTypeNotes
Resistors 19
R9100k100k
R210k10k
R610k10k
R710k10k
R810k10k
R1410k10k
R1510k10k
R1150k150k
R17150k150k
R31k1k
R51m1M
R181m1M
R121m1M
R161m1M
R191m1M
R4200k200k
R104k74.7k
R114k74.7k
R134k74.7k
Capacitors 17
C12100n100n
C16100n100n
C14100p100p
C710n10n
C110p10p
C1720n20n
C15220n220n
C18470n470n
C25470n470n
C247p47p
C10100u100u
C310u10u
C1110u10u
C82u22.2u
C92u22.2u
C1933u33u
C2047u47u
Diodes 4
D11N40011N4001
D21N40011N4001
D51n47421N4742 / 12V
D41n58171N5817
ICs 7
IC240106N40106N
IC44017N4017N
IC54017N4017N
IC34046N4046N
IC6TL072TL072
IC1TL074TL074
IC7TC1044SCPATC1044SCPA
Potentiometers 12
DIV100K AA100k
MASTER100K AA100k
MULTI100K AA100k
PREAMP10K AA10k
LAGTIME10K BB10k
TRIGGER10K BB10k
FREQ11M BB1M
FREQ21M BB1M
FREQ31M BB1M
WAVESHAPE250K BB250k
RESPONSE1M BB1MDual
LOOPTRACK500K AA500k
Switches 8
D-ONSPDT On-OnSPDT ON-ON
M-ONSPDT On-OnSPDT ON-ON
M-SPDT On-OnSPDT ON-ON
LoopspeedSPDT On-Off-OnSPDT ON-OFF-ON
FREQ3PDT On-On3PDT ON-ON
DRONE-FS3PDT On-On3PDT ON-ON
Momentary3PDT3PDT
BYPASS3PDT On-Off3PDT ON-OFFMomentary non
LEDs 1
D33mm LED3MM LED
Other 2
Multiplier1P12t set to 81P12T SET TO 8Momentary non
Divider1P12t set to 81P12T SET TO 8Momentary non

Other boards based on the Schumann PLL