Aion BINARY Manuel utilisateur

BINARY DUAL FUZZ 1

PROJECT NAME

BINARY

BASED ON

EFFECT TYPE

PROJECT SUMMARY

DOCUMENT VERSION

Darkglass®Duality

A bass fuzz with two distinct voicings that can be blended together in any ratio, from vintage warmth to

searing, gated chaos.

Bass fuzz 1.1.0 (2022-01-19)

BUILD DIFFICULTY

Intermediate

Actual size is 2.3” x 2.42” (main board) and 1.78” x 0.86” (bypass board).

BINARY DUAL FUZZ 2

TABLE OF CONTENTS

1Project Overview 8Drill Template

2Introduction & Usage 9Enclosure Layout

3-5 Parts List 10 Wiring Diagram

6Build Notes 11 Licensing

7Schematic 11 Document Revisions

INTRODUCTION

The Binary Dual Fuzz is based on the Darkglass® Duality Dual Fuzz Engine, a bass pedal first released

in 2013 that features two parallel fuzz paths that can be blended together in any ratio for a variety of

textures. It was traced by Aion FX in 2021.

The first path is similar to the Microtubes B3K, a series of CMOS hex inverters that provides a warm,

vintage-flavored drive.

The second path is devilishly simple, though extremely rare in guitar circuits. It uses a single op-amp

stage configured as a comparator: signal to inverting input, non-inverting input tied to reference voltage,

and no feedback path. As the input signal swings above and below the threshold set by the reference

voltage, the op-amp converts this to the maximum and minimum voltage (a process called hysteresis),

resulting in a heavily distorted and nearly synthesized square wave. The comparator is followed by a

primitive two-diode noise gate to keep it quiet when no signal is coming through. These diodes also add

crossover distortion.

In addition to the blended fuzz paths, there is also a tone control and volume control that are applied to

the fuzz after the two paths have been blended. This is followed by a clean blend that balances the fuzz

(after the tone and volume) with the unadulterated clean signal. It’s more complicated than the average

drive pedal, but it doesn’t take long to get the hang of it.

The Binary is a direct clone of the Duality based on our own trace, which is documented at length in

our tracing journal. Some extra power filtering has been added, but otherwise everything is true to the

original.

USAGE

The Binary has four controls:

• Duality blends between the vintage-flavored fuzz and the aggressive, gated sawtooth fuzz.

• Filter is a 5kHz shelving treble filter after the two fuzzes have been blended.

• Level sets the overall output of the blended fuzz signal.

• Blend pans between the buffered clean signal and the blended fuzz signal.

BINARY DUAL FUZZ 3

PARTS LIST

This parts list is also available in a spreadsheet format which can be imported directly into Mouser for

easy parts ordering. Mouser doesn’t carry all the parts—notably potentiometers—so the second tab lists

all the non-Mouser parts as well as sources for each.

View parts list spreadsheet →

PART VALUE TYPE NOTES

R1 10k Metal film resistor, 1/4W

R2 1M Metal film resistor, 1/4W

R3 1M Metal film resistor, 1/4W

R4 330k Metal film resistor, 1/4W

R5 15k Metal film resistor, 1/4W

R6 330k Metal film resistor, 1/4W

R7 10k Metal film resistor, 1/4W

R8 470k Metal film resistor, 1/4W

R9 10k Metal film resistor, 1/4W

R10 10k Metal film resistor, 1/4W

R11 1M Metal film resistor, 1/4W Not present in earlier Duality units.

R12 470k Metal film resistor, 1/4W

R13 15k Metal film resistor, 1/4W

R14 470k Metal film resistor, 1/4W

R15 330k Metal film resistor, 1/4W

R16 33k Metal film resistor, 1/4W

R17 10k Metal film resistor, 1/4W

R18 33k Metal film resistor, 1/4W

R19 10k Metal film resistor, 1/4W

R20 33k Metal film resistor, 1/4W

R21 2k2 Metal film resistor, 1/4W

R22 220k Metal film resistor, 1/4W

R23 220k Metal film resistor, 1/4W

R24 1k Metal film resistor, 1/4W

R25 1M Metal film resistor, 1/4W

R26 100k Metal film resistor, 1/4W

R27 1k Metal film resistor, 1/4W

R28 10k Metal film resistor, 1/4W

R29 10k Metal film resistor, 1/4W

RPD 1M Metal film resistor, 1/4W Input pulldown resistor.

LEDR 4k7 Metal film resistor, 1/4W LED current-limiting resistor. Adjust value to change LED brightness.

BINARY DUAL FUZZ 4

PARTS LIST, CONT.

PART VALUE TYPE NOTES

C1 100n Film capacitor, 7.2 x 2.5mm

C2 1uF Film capacitor, 7.2 x 3.5mm

C3 1n Film capacitor, 7.2 x 2.5mm

C4 100n Film capacitor, 7.2 x 2.5mm

C5 22n Film capacitor, 7.2 x 2.5mm

C6 47n Film capacitor, 7.2 x 2.5mm

C7 680pF MLCC capacitor, NP0/C0G

C8 220pF MLCC capacitor, NP0/C0G

C9 1uF Film capacitor, 7.2 x 3.5mm

C10 10n Film capacitor, 7.2 x 2.5mm

C11 1n Film capacitor, 7.2 x 2.5mm

C12 2n2 Film capacitor, 7.2 x 2.5mm

C13 1n Film capacitor, 7.2 x 2.5mm

C14 1n Film capacitor, 7.2 x 2.5mm

C15 1n Film capacitor, 7.2 x 2.5mm

C16 1n Film capacitor, 7.2 x 2.5mm

C17 1n Film capacitor, 7.2 x 2.5mm

C18 680pF MLCC capacitor, NP0/C0G

C19 1uF Film capacitor, 7.2 x 3.5mm

C20 100uF Electrolytic capacitor, 6.3mm Reference voltage filter capacitor.

C21 220uF Electrolytic capacitor, 6.3mm Power supply filter capacitor.

C22 100n MLCC capacitor, X7R Power supply filter capacitor.

D1 1N5817 Schottky diode, DO-41

D2 1N914 Fast-switching diode, DO-35

D3 1N914 Fast-switching diode, DO-35

IC1 TL072 Operational amplifier, DIP8

IC1-S DIP-8 socket IC socket, DIP-8

IC2 TL072 Operational amplifier, DIP8

IC2-S DIP-8 socket IC socket, DIP-8

IC3 CD4049UBE CMOS hex inverting buffer, DIP16

IC3-S DIP-16 socket IC socket, DIP-16

IC4 TL072 Operational amplifier, DIP8

IC4-S DIP-8 socket IC socket, DIP-8

IC5 TL072 Operational amplifier, DIP8

IC5-S DIP-8 socket IC socket, DIP-8

IC6 TL072 Operational amplifier, DIP8

IC6-S DIP-8 socket IC socket, DIP-8

BINARY DUAL FUZZ 5

PARTS LIST, CONT.

PART VALUE TYPE NOTES

DUALITY 100kB 16mm right-angle PCB mount pot

FILTER 100kB 16mm right-angle PCB mount pot Reversed from original unit in v1.0. See build notes.

LEVEL 100kA 16mm right-angle PCB mount pot

BLEND 100kB 16mm right-angle PCB mount pot Reversed from original unit in v1.0. See build notes.

LED 5mm LED, 5mm, red diffused

IN 1/4" mono 1/4" phone jack, closed frame Switchcraft 111X or equivalent.

OUT 1/4" mono 1/4" phone jack, closed frame Switchcraft 111X or equivalent.

DC 2.1mm DC jack, 2.1mm panel mount Mouser 163-4302-E or equivalent.

FSW 3PDT Stomp switch, 3PDT

ENC 125B Enclosure, die-cast aluminum Can also use a Hammond 1590N1.

BINARY DUAL FUZZ 6

BUILD NOTES

Filter and Blend knob rotation

The Filter and Blend controls were inadvertently reversed in the original run of the Binary. This was

fixed in version 1.1 which began shipping in January 2022.

If your PCB does not say “v1.1” in the upper right then you have the earlier reversed version. In this

version the blend knob goes from full effect at CCW to full clean at CW, and the filter control will act as

a treble cut as you turn it up rather than adding treble as in a normal tone control.

This has no impact on the sound of the unit, so it’s fine to leave it as-is, but if you do want to correct

the rotations then it’s a simple fix. All you have to do is reverse lugs 1 and 3 of both potentiometers—in

other words, connect lug 3 to pad 1 and lug 1 to pad 3. The middle lug is left as-is.

If you’re using the recommended PCB-mount potentiometers, it’s easiest to clip the two outer lugs at

the bend of the “L” shape and then solder wires that cross over the center pin. Keep the center pin in

place as an anchor so the pot has a rigid connection to the PCB.

R11 resistor

R11 is a 1M resistor from the input of IC2A to the bias voltage. Of the two Duality units that have been

traced, Revision 4-K does not have this resistor and Revision 7 does.

It’s good design practice to include it, and will have no impact on the tone other than improving the

stability of IC2A if it’s used, so it’s recommended to use it in all cases.

Filter control midrange mod

Douglas from Darkglass shared a modification that can change the character of the Filter knob. By

default, it’s a 5kHz shelving filter, but it can be turned into a 1kHz midrange boost/cut control by using

2.2n for C18 and soldering a 22n capacitor across lugs 1 and 3 of the filter control.

SCHEMATIC

BINARY DUAL FUZZ 7

OUT

1N5817

220uF

100kA 100kB

100kB

+9V

100n

GND

10k

100n

10k

GND

100uF

GND

TL072P

GND

330k

15k

100n

TL072P

CD4049UBECD4049UBECD4049UBE

CD4049UBE

GND

TL072P

GND

1uF

100k

GND

330k

22n

10k

470k

680pF

47n

GND

10k

220pF

1uF

10n

470k

15k

470k

GND

330k

33k

2n2

GND

10k 33k

GND

10k 33k

GND

2k2

220k

680pF

1uF

VB VB

C21

LEVEL

DUALITY

BLEND

FILTER

C22

R28

R29

C20

IC1A

IC2B

IC6B

IC2A

IC5A 6

IC5B

IC4A 6

IC4B

109

IC3D

1211

IC3E

1514

IC3F

IC3C

IC3B

IC3A

VDDVSS

8 1

8484

IC6A

IC1B

R25

C19

R26

R27

R10

R11

C10

R12

R13

R14

1N914

D3 C11

R15

R16

C12

C13

R17 R18

C14

C15

R19 R20

C17

C16

R21

R22

R23

C18

R24

GND

BINARY DUAL FUZZ 8

DRILL TEMPLATE

Cut out this drill template, fold the edges and tape it to the enclosure. Before drilling, it’s recommended

to first use a center punch for each of the holes to help guide the drill bit.

Ensure that this template is printed at 100% or “Actual Size”. You can double-check this by measuring

the scale on the printed page.

Top jack layout assumes the use of closed-frame jacks like the Switchcraft 111X. If you’d rather use

open-frame jacks, please refer to the Open-Frame Jack Drill Template for the top side.

LED hole drill size assumes the use of a 5mm LED bezel, available from several parts suppliers. Adjust

size accordingly if using something different, such as a 3mm bezel, a plastic bezel, or just a plain LED.

ø3/8” ø1/2”

0.385”

0.625” 0.625”

x: -0.65, y: +1.71 x: +0.65, y: +1.71

ø9/32” ø9/32”

x: -0.65, y: +0.41

ø9/32”

x: +0.65, y: +0.41

ø9/32”

x: 0, y: -1.775

ø15/32”

x: -0.775, y: -1.775

ø5/16”

CENTER (0,0)

ø3/8”

125B

OUT

FILTER DUALITY

LEVEL BLEND

FOOTSWITCHLED

DC IN

0 1 2

0 1

INCH

BINARY DUAL FUZZ 9

ENCLOSURE LAYOUT

Enclosure is shown without jacks. See next page for jack layout and wiring.

125B

BINARY DUAL FUZZ 10

WIRING DIAGRAM

125B

IN +VGND NC NC OUT

PCB

GND +V +V JACK GND JACK

OUTIN

GND GND PCB

OUT

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