Akashic Guitar effects PCB lookup
BIASFUZZHILOWVOL

1590B · 5 knobs

Fuzz Dog· Quag

Quagmire Fuzz

Based on the BOG

Category
Fuzz
Controls
Bias · Fuzz · Hi · Low · Vol
Difficulty
Medium
Price
£43.20
Tags
fuzz

From the vendor

A beautiful box of fuzz, designed to get you a huge range of Jimi tones from Electric Ladyland through to Band of Gypsys. Don't mistake this for the Dunlop B.O.G. Fuzz Face (nothing wrong with that, and you may want to check out our Fillmore Fuzz...), but this one shoehorns so much more into the mix. Buffers front and back make this play nice with other pedals anywhere in the chain, and there more to play with than the standard Vol and Fuzz controls. You have a Lows knob to play with the bottom end hitting the fuzz section. Keep it in and get a thick earth shattering fuzz, or wind it back to make things sharper and more cutting. The Highs knob lets you bleed off some of the top endfor a more germanium Fuzz Face tone, or keep all that fizzle shizzle intact for a silicon FF vibe. Tweaking both tone controls will give you so many options you'll find a perfect setting for any amp. An external Bias pot is the cherry on the tweak cake here. Starve those cans for a gated, choked fuzz, or whack up the power to increase the headroom if that's your thing. Giggidy. The kit is supplied with vertical-mount pots which have round shafts, so you'll need set-screw fitting knobs. Pots are spaced 17.5mm apart, so take that into consideration when choosing your 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: BOG Difficulty: Medium PCB size: 50 x 50mm Knobs required: 5 Enclosure: 1590B 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 54 rows

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RefValueNormalizedTypeNotes
Resistors 23
R11M1M
R268k68k
R322k22k
R447k47k
R51M1M
R61k1k
R710k10k
R810k10k
R9100k100k
R10100k100k
R11100k100k
R131k1k
R14220R220
R1568k68k
R1622k22k
R1747k47k
R181M1M
R191k1k
R2010k10k
R211k1k
R22220R220
R23220R220
R24100k100k
Capacitors 21
C1100p100p
C2100n100n
C31n1n
C44n74.7n
C5100p100p
C6220p220p
C7100n100n
C83n33.3n
C910n10n
C1022u22uelec
C1122u22uelec
C1222u22uelec
C1322u22uelec
C1422u22uelec
C1522u22uelec
C1622u22uelec
C1722u22uelec
C1822u22uelec
C19220u220uelec
C20220u220uelec
C21220u220uelec
Diodes 1
D11N58171N5817
Transistors 4
Q1BC549CBC549C
Q2BC549CBC549C
Q3BC549CBC549C
Q4BC549CBC549C
Potentiometers 5
BIAS10KBB10kPotentiometer
FUZZ1KCC1kPotentiometer
HI100KAA100kPotentiometer
LOW100KAA100kPotentiometer
VOL100KAA100kPotentiometer