Akashic Guitar effects circuit lookup
VOLUMEDRIVETONEACCENT

125B · 4 knobs

PCB Guitar Mania

Humanoid

Based on the Shin's Music Dumbloid· 3 other boards clone it

Category
Overdrive· Dumblesque overdrive
Controls
Volume · Drive · Tone · Accent
Difficulty
Intermediate
Price
€9.90out 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

Inspired by the extremely hard to find and buy Shin’s Music Dumbloid, this pedal is a versatile drive that can go from a clean and transparent boost to a tender, touch-sensitive, Dumble-style overdrive.

Introduction

Some people say that it is easier to have a close alien encounter than to find an original Dumble amplifier. Most of you will never see one of these pedals in person, much less play through one. And if you, a friend, or a friend of a friend by any chance of fate discover one, you will find out that Dumbles are not only scarce but astonishingly expensive.

Produced by Alexander Dumble out of his shop, hardly 300 Dumbles are currently in circulation, with many of them crafted for specific clients.

Because of this, the Shin Suzuki’s Dumbloid was born: a Japanese take on the original circuit that meticulously recreates the Dumble sound. But don’t get too excited yet; let me tell you that this one is also scarce and incredibly expensive, with prices above $600 on the US used market.

Our version, The Humanoid, is easier to find and buy and a friendlier approach for the human race in general. This smooth, clean, sensitive overdrive and transparent boost is something you must try. The controls deliver incredibly responsive and provide a large spectrum of tonal options, all of which are extremely good. Moreover, you can stack them, so the gain structures play off one another when used in conjunction.

Controls

• Accent

• Tone

• Volume

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

Humanoid – Building Docs

Humanoid – 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 37 rows

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RefValueNormalizedTypeNotes
Resistors 16
R14100k100k
R2100r100
R16100r100
R410k10k
R510k10k
R610k10k
R810k10k
R1010k10k
R3150k150k
R91k1k
R121k1k
R131k1k
R71k81.8k
R11m1M
R11220r220
R194k74.7k
Capacitors 13
C7100n100n
C2100p100p
C31u1u
C4220n220n
C6220n220n
C9220n220n
C1470n470n
C10470n470n
C582p82p
C1122u22u
C82u22.2u
C1247u47u
C1347u47u
Transistors 2
Q1BC548BBC548B
Q2BC548BBC548B
ICs 1
IC1OPA2134OPA2134
Potentiometers 4
VOLUME100kBB100k
DRIVE1MAA1M
TONE20kBB20k
ACCENT25kBB25k
LEDs 1
D13mm RED LED3MM RED LED

Other boards based on the Shin's Music Dumbloid