Quick Pitch: A revamped and fine-tuned version of the venerable Katzenkönig with a slew of changes that truly unlock the circuit's potential

The Blood Donor fuzz pedal from Catalinbread delivers snarling fuzz tones that tear out of your amp onto the stage, and it does it while contributing to a fantastic cause! Catalinbread has committed to make a donation from every purchase of Blood Donor pedals to the ALS research, so when you purchase a Blood Donor pedal, you’re also helping take care of our country’s most vulnerable citizens. And did we mention that it sounds incredible? Based on the Catalinbread’s renowned Katzenkönig fuzz pedal, Blood Donor is a hybrid of two venerable dirt boxes — the Tone Bender MkII fuzz and the Rat distortion pedal. With its four simple controls, it can go from crunchy saturation to cutting laser-like fuzz and grimy fuzzed-out sputters. It also features a few key updates to the Katzenkönig that make the most out of its innovative circuit, including a carefully selected transistor set that dials up the saturation, an improved noise floor, and an expanded input sensitivity range.

Charity: ALS Research
This year, we’ve updated the artwork for 2023 and selected a new charity to support. For every Blood Donor sold in the month of March, Catalinbread will donate a portion of each domestic sale to ALS research. Though the cause has changed, the message is as vital as ever; giving one’s blood is still an important act of charity and you should continue to do so.

ConditionBrand New (New)
Brand New items are sold by an authorized dealer or original builder and include all original packaging.Learn more
  • Blood Donor Limited Edition
Made In
  • United States
Pedal Format
  • Standard

Reverb Protection

Simple Returns, Secure Transactions, Human Support

Learn more

Secure Checkout

Chicago Music Exchange

Chicago, IL, United States
Joined Reverb:2012

Reverb Gives

Your purchases help youth music programs get the gear they need to make music.

Carbon-Offset Shipping

Your purchases also help protect forests, including trees traditionally used to make instruments.

Oops, looks like you forgot something. Please check the fields highlighted in red.