Do some digging around at diystompboxes.com. I recall a few people making clones and at least one person making their own pcb.
If you find the schematic or parts list you could simply swap values on an already verified Big Muff layout. You don't need the big chip. It's just four transistors put into one package. Nothing particularly special about it other than easier to build with in a production setting.
First off I would like to say HI to every one as this is my first post here..
Good luck with the layout. If you do come across one would you please share it with me.
It seems that if any one post anything about this pedal Way Huge ( Not his real name I think his real name is jeorge trigged tiggerd or somthing) jumps in and makes them remove it he totaly cleaned out any good info that DIY stomp had..
Personaly I have yet to see a PAT number on any pickle pedal...
There was a user over there that made his own Swollen Pickle board. His name was MrSage.
Occasionally you'll see his pedals come up on ebay as Black Pearl pedals.
No I didnt know Harmony Central had a board.. I thought it was for reviews only. Hum I will have to change my user name.I dont like any one having the same one as me.