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Queen of Bone 2 (King of Tone™ 18v clone) PCB

4.75 out of 5 based on 4 customer ratings
(4 customer reviews)


Inspired by the King of Tone™  dual Marshall Bluesbreaker circuit – but with 18v charge pump onboard.  Two overdrives in one pedal – great on their own or stacked. Uses standard 9VDC and steps up internally to 18V. Includes 3PDT breakout board for easy wiring.  Sweet.  


In stock


Product Description

It’s here! The all-new Queen of Bone 2 is in stock and shipping now.


QoB2 rev2A Build Doc REVISED

QoB2 rev2A BOM Excel FINAL

The original QUEEN of BONE was one of our most popular DIY projects, and for good reason.  We took the concept of the boutique King of Tone™ dual Bluesbreaker circuit and added an added an onboard 18V charge pump for increased headroom and clarity.  Even better, the 18V charge-pump option is built in, meaning more headroom and clarity…and is still powered by a normal 9v DC (Boss Style) pedal power supply.

So how did the QUEEN of BONE 2 become even better?  Let’s see:

  • Now includes a “snap-off” 3PDT daughterboard for easiest wiring ever!
  • Onboard charge pump is always at 18V
  • Internal DIP switch (which allows clipping selections) is now a 4 gang
  • Everything mounts to the PCB except the DC jack and IN/OUT jacks
  • All jacks are top mounted to save pedalboard space
  • Two choices where to install your LED
  • Easier to populate and build due to revised PCB layout

The QUEEN of BONE 2 DIY PCB board is essentially is designed to be mounted in a 1590BB size enclosure and use a 3PDT footswitch for TRUE BYPASS on each overdrive side.   A common example is to set one side for a clean-ish boost and the other dirty; Then cascade the clean into the dirty side.  If you ever have run two overdrives back to back, this is how it works.  You can use the clean itself, the dirty itself, or both for tons of gain.   The possibilities are endless with the internal DIP switch diode selection and internal presence trimmer controls.

The QUEEN of BONE 2 was designed with the DIY pedal maker in mind for the best building and playing experience possible.  Order yours today!


4 reviews for Queen of Bone 2 (King of Tone™ 18v clone) PCB

  1. 5 out of 5

    (verified owner):

    Be patient on this build, as there is a lot to solder. It’s an absolutely magnificent sounding effect!
    It feels a little like the OCD. An overdrive that responses to your playing style and sounds fantastic with any setup.
    I praise Rullywow for the pedal design. It’s my favorite overdrive of all time!

  2. 5 out of 5

    (verified owner):

    Really great circuit, with a beautiful, well-thought out layout that couldn’t be easier to assemble.

    This is a faithful recreation of the King of Tone, but at a price that anyone can afford! Also, the customer support is fantastic!

  3. 5 out of 5

    (verified owner):

    Just got thru building a KoT CLone using this PCB. Very well made, excellent layout. super easy instructions with great suggestions. I have a few more in my Cart 😉

  4. 4 out of 5

    (verified owner):

    Just built the pedal. I noticed a high frequency noise when engaging the pedal. Worse on left side stomp. Seems to increase when I turn up the tone. I thought it may be a faulty film cap, but now I’m wondering if it is a electro-cap being stressed. There is no mention of the voltage rating for caps, but I suspect 16V is not enough with the 18V boost. Can you still implement a 9v jumper somewhere? Other than that I love the design and I think the tone is there!

    • :

      Thanks for the comment. If you are getting whine from the pedal then the IC you used for the charge pump is not audio rated. Try a TC1044SPCA or equivalent. Also, if you want 9V you should be able to just pull the charge pump IC and have it. Caps would be at least 25V as mentioned in the instructions.

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