Help me identify this PCB!

[quex23]

I found this PCB in a box of old stuff from about 10 years ago. No identifying marking on it, and I'm at a loss how to figure out exactly what it is so I can build it. It's obviously some sort of opamp based distortion/fuzz circuit, but without the component list I have no idea what to populate it with. Hoping someone here can help me identify it!

[stallik]

Big muff pi from musikding.

https://www.musikding.de/Big-Muff-Pi-Opamp-kit

[bluebunny]

How do you do that, Kevin?? 

[Mark Hammer]

Isuspect the 3+3 diode complement provided the first clue.

[stallik]

I'd like to be able to say that I mentally traced the circuit but really, I popped it into Google image search

[bluebunny]

And the magic goes away...

[ElectricDruid]

I dunno... I kind of like it when the trick is revealed. For me, that's the bit where the magician shows how clever they've been and everyone else goes "Oh! Yeah! Of course!"

Which is exactly what I'm feeling now...,)

[deadastronaut]

there was me thinking kevin had super powers....what a let down.