The “QUEEN of BONE” PCB, schematic, and build document are for DIY use only. Unauthorized copying or reselling of PCBs is strictly prohibited without express permission from www.rullywow.com

Queen of bone Fx type: dual Overdrive

©2014 – www.rullywow.com

(Version 1.2) Dimensions = 3.5” x 1.75”

The “QUEEN of BONE” PCB, schematic, and build document are for DIY use only. Unauthorized copying or reselling of PCBs is strictly prohibited without express permission from www.rullywow.com

Components - By Location Caps Resistors Diodes

C1 100uF electro R1 47k D1-D6* MA856 C2 10n film R2 47k D7-D12* 1S1588 C3 100pF ceramic R3 1M D13 1n4001 C4 10n film R4 1M D14 1n5817 C5 10n film R5 10k D15 1n5817 C6 100n film R6 33k D16 1n4001 C7 10n film R7 27k Pots C8 10n film R8 10k PRES_1 50k (trim) C9 1uF electro R9 220k PRES_2 50k (trim) C10 1uF film R10 6k8 GAIN_1 100kB C11 10n film R11 1k GAIN_2 100kB C12 100pF ceramic R12 6k8 TONE_1 25kB C13 10n film R13 1M TONE_2 25kB C14 10n film R14 1M VOL_1 100kA C15 100n film R15 1M VOL_2 100kA C16 10n film R16 10k IC C17 10n film R17 33k IC1/IC2* JRC4580D C18 1uF electro R18 27k IC3 TC1044SCPA C19 1uF film R19 10k Switches C20 10uF electro R20 220k DIP1/2 2pos DIP C21 10uF electro R21 6k8 C22 10uF electro R22 1k

R23 6k8 R24 1M

The “QUEEN of BONE” PCB, schematic, and build document are for DIY use only. Unauthorized copying or reselling of PCBs is strictly prohibited without express permission from www.rullywow.com

Components - By Value Caps Resistors Diodes

C6 100n film R5 10k D1-D6* MA856 C15 100n film R8 10k D7-D12* 1S1588 C3 100pF ceramic R16 10k D13 1n4001 C12 100pF ceramic R19 10k D14 1n5817 C1 100uF electro R11 1k D15 1n5817 C2 10n film R22 1k D16 1n4001 C4 10n film R3 1M Pots C5 10n film R4 1M PRES_1 50k (trim) C7 10n film R13 1M PRES_2 50k (trim) C8 10n film R14 1M GAIN_1 100kB C11 10n film R15 1M GAIN_2 100kB C13 10n film R24 1M TONE_1 25kB C14 10n film R9 220k TONE_2 25kB C16 10n film R20 220k VOL_1 100kA C17 10n film R7 27k VOL_2 100kA C20 10uF electro R18 27k IC C21 10uF electro R6 33k IC1/IC2* JRC4580D C22 10uF electro R17 33k IC3 TC1044SCPA C9 1uF electro R1 47k C10 1uF film R2 47k Switches C18 1uF electro R10 6k8 DIP1/2 2pos DIP C19 1uF film R12 6k8 R21 6k8 R23 6k8

The “QUEEN of BONE” PCB, schematic, and build document are for DIY use only. Unauthorized copying or reselling of PCBs is strictly prohibited without express permission from www.rullywow.com

The QUEEN OF BONE is based upon the King of Tone™ classic overdrive which is a

favorite with the boutique pedal market. Of course, there are a few tweaks on this

version. The board essentially is two overdrives in one, designed to cascade upon

each other. A common example is to set one for a clean-ish boost and the other

dirty. The possibilities are endless with the internal diode selection and presence

controls. The QOB has an 18V charge pump built in, which allows more headroom

and clarity.

This is a medium to hard level build, due to the high component count and different

types of components. There is nothing especially difficult about the build itself, it is

pretty straight forward – just a lot of components.

Diodes used are the scarce MA856 and 1S1588. You may find 1S1588 here and

there but the MA856 is basically unobtainum. You can substitute any standard

clipping diodes in D1-D6 (side 1) and D7-D12 (side 2). 1N914, 1N4148, red LED,

BAT41, etc can all be used.

Socketing is HIGHLY recommended. (plus it’s fun!). In my verified build, I used

1S1588 on side 2 and 1N4148 on side 1.

Charge Pump (IC3) is a TC1044SCPA. This guy boosts the 9V up to around +18v. Be

sure it is the “SCPA” version otherwise there is a potential for audio whine in the

circuit.

Powering is done with a standard 9VDC adapter. There are extra pads at the top of

the board for +9V and GND if you wish to mount your power jack at the top. These

pads are connected with the ones at the bottom for easy wiring if you choose to use

them. Ensure you select either the 9V option or 18V…not both. I like to use a

jumper (shunt) and a three segment piece of standard 2.54mm header to be able to

change voltage quickly. Here is a pic (yeah I burned the jumper with my iron ooops):

The “QUEEN of BONE” PCB, schematic, and build document are for DIY use only. Unauthorized copying or reselling of PCBs is strictly prohibited without express permission from www.rullywow.com

Presence Trimmers are located on the PCB to tweak the amount of presence in each

channel. You are welcome to locate these externally if you desire.

DIP Switches are located internally for each channel and take various diodes in/out of

the circuit. A popular mod is to use a DPDT or SPDT switches to locate these switches

externally. Experiment with these settings. The “ON” position adds more diodes into the

circuit resulting in more grit and distortion.

Wiring Diagram is provided here to help you wire up the pedal with side 1 cascading into

side 2. This is just a suggestion; however this way ensures a lot of versatility.

The “QUEEN of BONE” PCB, schematic, and build document are for DIY use only. Unauthorized copying or reselling of PCBs is strictly prohibited without express permission from www.rullywow.com

Drill Dimensions (in inches and not to scale)

This is for version 1.2 (slightly different pot spacing from 1.1)

These are approximate dimensions, provided as a helping

tool. You should always double check before you drill

your enclosure.

Hammond 1590BB size or larger recommended.

The “QUEEN of BONE” PCB, schematic, and build document are for DIY use only. Unauthorized copying or reselling of PCBs is strictly prohibited without express permission from www.rullywow.com

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