Here's a Walrus Audio Jupiter Fuzz pedal.

A very versatile sounding fuzz.

The mode switch offers three different types of clipping diodes.

All the way to the right is the most compressed, highest gain setting with less volume. Left side is a little bit less compressed with little less gain and more volume.

Middle is the most headroom and less amount of fuzz.

Bass switch engaged to the right allows more bass, while to the left cuts some bass frequencies out

Features:
Level, Fuzz and Tone Controls
Bass Boost On/Off Switch
3-Mode Toggle
True Bypass
Can be powered from a 9V battery or DC Supply