Bone Bender 2 is just like BB1 based on germanium transistors. BB2 has an extra gain stage and it has four control knobs: Tone, Volume, Fuzz and Saturation.
Fuzz and Saturation both adjust gain and fuzz and the variety of sounds, possible to achieve by setting these two knobs in different combinations, are great. The Tone knob allows you to cut out some of the lower frequencies to get a sharper sound. The bass position of the Tone knob gives you a full range sound. The pedal has lots of gain and the Volume knobs sets the output volume right.
The Bone Bender 2 kit is designed by Björn Juhl. We have developed a kit with a newly designed PCB to offer from here. Share discussion about this circuit on our forum. Read more about Bone Bender, Fuzz 109, Sparkle Face and other DIY kits there.
The Bone Bender kit includes all the parts needed to build the pedal. The kit also includes some modification components for those who want to fine tune the sound. Read “description and working theory”, linked to below, and take a deep dive into how the circuit works and get suggestions for modifications.