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1590BB · 4 knobs

Fuzz Dog· BigMuffBB

Big Muff Pi Fuzz - Big Box

Based on the Lots of Big Muff Pi variants· 5 other boards clone it

Category
Fuzz
Controls
Shift · Tone · Sustain · Volume
Difficulty
Medium
Price
£36.00
Tags
fuzz

From the vendor

The daddy of thick, meaty fuzz. Everyone needs some Fluff n their life. And for some strange reason some people prefer a bigger box. Well, here you are.

All the features of our Multi-Fluff version of the PCB but designed for 1590BB builds. Optional extra functions are:

• board-mounted toggle switches for alternative diode clipping on the second and third gain stages.

• extra pot pads for alternative tone controls with mid-shift.

Kits available for the following versions of this classic:

• 70's (3rd) version

• Green Russian

• Black Russian

• Civil War Russian

• Tall Font Green Russian

• Ram's Head

• Triangle

• Violet Ram's Head

• V3 79#2 (Mascis)

• Creamy Dreamer

• Stoned cleric

• Hoof

• Cloven Hoof

• Elk Sustainer (NPN version)

• London Low

Mascis model doesn't have the tone bypass that was on the original, but a Muff without Muff tone is no Muff at all. Creamy Dreamer doesn't include the ludicrous power filtering of the original.

What's the difference in the above versions? That's a website all to itself, and whaddayaknow? There IS a fantastic resource on all things Big Muff. Check out Kit Rae's Big Muff Pie page.

All versions are available as four-knob with AMZ Presence Control (version 1 or 2) instead of the three-knob standard tone circuit. For more info on those have a read of this. If you select Hoof or Cloven Hoof, these already have a tone section that includes a mids shift pot. Please DO NOT select one of the AMZ options when ordering as you'll just be adding extra cost to your order. Three and four knob versions are available with any of the jack/DC position options, we just didn't think it was worthwhile showing a picture of every possible combo. Top mounted version comes with Lumberg jacks instead of Neutrik as they fit better above the pots.

If you want to get really tweaky with your fuzzing you can add the optional clipping diodes and switches. If you go for this option we'll include four each of germanium, 1n4001, BAT46 and red LEDs.

The kit is supplied with vertical-mount pots which have round shafts, so you'll need set-screw fitting knobs.

If you want the PCB without parts there's a link for that at the bottom of the page.

Partial kit: PCB, all board-mounted components, pots.

Full kit: As above, plus footswitch and appropriate daughterboard/components for your selected bypass type (see Downloads section for details of those), jack sockets, DC socket, battery snap, hook-up wire, LED.

Enclosure (pre-drilled) is only available with full kits, and will not take a battery. Knobs are not included.

Builds are only available with full kits including enclosures. Please choose appropriate knobs.

Inspired by: Lots of Big Muff Pi variants

Difficulty: Medium

PCB size: 80 x 38mm

Knobs required: 3/4

Enclosure: 1590BB

Download the INSTRUCTION PDF

Schematic

The schematic is in the vendor's build document, page 3. Open the build document. No KiCad fragment has been drawn for this circuit yet.

Parts list 52 rows

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RefValueNormalizedTypeNotes
Resistors 23
R183K33.3k
R1939K39k
R139K39k
R2100K100k
R3470K470k
R4100R100
R515K15k
R71K1k
R88K28.2k
R9100K100k
R10470K470k
R1115K15k
R12100R100
R138K28.2k
R14100R100
R15470K470k
R16100K100k
R1715K15k
R21100K100k
R22390K390k
R232K22.2k
R2410K10k
R251M1M
Capacitors 14
C1012n12n
C1110n10n
C1100n100n
C2470p470p
C31u1u
C41u1u
C5470p470p
C6100n100n
C71u1u
C8470p470p
C9100n100n
C12100n100n
C13100n100n
C14100u100u
Diodes 5
D11N41481N4148
D21N41481N4148
D41N41481N4148
D51N41481N4148
D71N40011N4001
Transistors 4
Q12N50882N5088
Q22N50882N5088
Q32N50882N5088
Q42N50882N5088
Potentiometers 4
SHIFT25KBB25kPotentiometer
TONE100KBB100kPotentiometer
SUSTAIN100KAA100kPotentiometer
VOLUME100KAA100kPotentiometer
Switches 2
SW1isIS
SW2isIS

Other boards based on the Lots of Big Muff Pi variants