Is the Meatsphere PCB build center positive or center negative.

[0xeneye]

I bought a clone of the Lovetone Meatball, the Meatsphere.  Is the power to the jack center positive or center negative (like a Boss pedal)?   Standard build.  Thanks!

http://musicpcb.com/pcbs/meat-sphere/

[LaceSensor]

Doesn't matter, ht does matter is it is negative ground.

But yes for simplicity sake get a 2.1mm barrel jack nd wire it centre negative...