Akashic Guitar effects circuit lookup
SUSTAINBLENDTONELEVEL

125B · 4 knobs

PCB Guitar Mania

My Bloody Pumpkin Blender

Based on the Fender Blender· 9 other boards clone it

Category
Fuzz· Old-school style fuzz
Controls
Sustain · Blend · Tone · Level
Difficulty
Intermediate
Price
€11.90out of stock

Heads up Builders widely report inconsistent quality from PCB Guitar Mania boards, and whether a given board works is a gamble. Read recent forum reports before ordering.

From the vendor

Project overview

Inspired by Fender Blender. One of the best-sounding old-school style fuzz out there. Don’t miss this germanium-based fuzz box that produces pretty vintage sounds that are utterly feral at the same time.

Introduction

When Fender released their Fender Blender in 1968, it seemed like they were entering late in the game. The war of fuzz pedals had already begun in ’62, and after all, what could they bring to the table? The fuzz fiver that started with the Maestro FZ-1 Fuzz-Tone by Gibson rose through the ’60s and brought numerous incarnations of Fuzz Face, Tonebenders, Shin-ei / Univox Superfuzzes, Mosrite Fuzzrite, and a big etcetera.

It seemed that it was pretty late to release a game-changing fuzz pedal…but history has many plot twists. If Fender was a latecomer to the scene, it had to offer a really good fuzz. And it did it with its impressive octave blend that delivered a total new tonal option!

The rest is well known; bands like My Bloody Valentine and The Smashing Pumpkins popularized the board and his unique sound.

We recreated this historical pedal with all modernizations up to date. The topology is pretty darn close to the Superfuzz, including Germanium diodes, Transistor splitter, and switchable tone control. It sounds awesomely bass-heavy, and we really dig its low end. If you’re not a fan of this, switch the tone control on and get new tonal options.

Become part of history and try this old-school, hard-to-find fuzz that will never go out of style.

Controls

• Blend

• Level

• Sustain

• Tone

For any technical questions regarding this build don’t forget to check out our Facebook Group and our forum at Free Stomp Boxes.

My Bloody Pumpkin Blender 1v2 – Building Docs (2nd November 2022)

My Bloody Pumpkin Blender 1v1 – Building Docs (24th October 2022)

My Bloody Pumpkin Blender – Drilling templates Single footswitch

My Bloody Pumpkin Blender – Drilling templates Dual footswitch

Schematic

The schematic is in the vendor's build document, page 5. Open the build document. No KiCad fragment has been drawn for this circuit yet.

Parts list 59 rows

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RefValueNormalizedTypeNotes
Resistors 29
R15100K100k
R21100K100k
R710K10k
R1610K10k
R2210K10k
R2610K10k
R6120K120k
R2150K150k
R10150K150k
R23150K150k
R115K15k
R2418K18k
R41K51.5k
R9220K220k
R1327K27k
R1427K27k
R1827K27k
R193K93.9k
R253K93.9k
R547K47k
R2047K47k
RLE24K74.7k
RLED4K74.7k
R3560K560k
R8680R680
R17820R820
R27820R820
R118K28.2k
R128K28.2k
Capacitors 13
C1100n100n
C4100n100n
C10100n100n
C17100n100n
C131n1n
C113n3n
C247n47n
C310u10u
C510u10u
C610u10u
C710u10u
C810u10u
C910u10u
Diodes 5
D11N34A1N34A
D21N34A1N34A
D31n34a1N34A
D41n34a1N34A
D01n58171N5817
Transistors 5
Q12N50882N5088
Q22N50882N5088
Q32N50882N5088
Q42N50882N5088
Q52N50882N5088
Potentiometers 4
SUSTAINA10KA10k
BLENDB100KB100k
TONEB25KB25k
LEVELA50KA50k
Switches 1
SW1DPDT ON-ONDPDT ON-ON
LEDs 2
LED3mm red LED3MM RED LED
LED23mm red LED3MM RED LED

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