This is a library of perfboard and single-sided PCB effect layouts for guitar and bass. I'm not an electrical engineer by any stretch of the imagination, just a DIY'er who likes drawing layouts. It is meant for the hobbyist (so commercial use of any of these layout is not allowed without permission) and as a way to give back to the online DIY community.

Friday, September 16, 2016

Way Huge Swollen Pickle Mk I

For Fuzz Friday we have the original Swollen Pickle from Way Huge Electronics. One of the unique things about this Muff clone is the use of a quad transistor array instead of 4 individual transistors. This makes for a quieter pedal and more consistency in transistor matching. However if you don't feel like tracking down an MPQ3904 or NTE2321, you can use 4 individual transistors. Just note the pinout in the layout below.


  1. in case I use transistors , which I use for mounting

    1. I'm in the middle of doing this pedal and I use transistor sockets like this

  2. It's verified. I use bc549 transistors. Very quite and sound good to my ears.

  3. I cant find 470k resistances, in my country there are 475k comercial resistances. is there any problem if i use this value?

  4. An error was made in the PCB, 1.5 ohm should be replaced by 1.5 kΩ. This is the emitter resistor of the output stage.