Akashic Guitar effects PCB lookup
FUZZ

1590B · 1 knobs

Fuzz Dog· OG-1

Old Gods Fuzz - One Knob

Based on the Cthulu

Category
Fuzz· Newest
Controls
Fuzz
Difficulty
Medium
Price
£31.20
Tags
fuzz

From the vendor

The old gods are awakening. Tremble with fear....

Simple one-knob box of doomy fuzzy malevolence. At first glance you may take it as a tweaked Fuzz Face with an extra gain stage after it, which it is. But that extra gain and the magical properties of the MOSFET in parallel with Q2 give it something pretty special.

Nothing to tweak here. Fixed max fuzz, no tone, just a volume to tame the beast.

If you like it tweaky, head over to the Four-Knob Old God (link below) - the extra output and tone are absolutely worth the extra knobbage if you hate simplicity.

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 available as an option with full kits, and will not take a battery. Knobs are not included.

Builds are only available with full kits including enclosures and vertical-mount pots. Please choose appropriate knobs.

Inspired by: Cthulu

Difficulty: Medium

PCB size: 50 x 40mm

Knobs required: 4

Enclosure: 1590B

Direct-Connect compatible (4-way)

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 26 rows

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RefValueNormalizedTypeNotes
Resistors 10
R11M1M
R2100K100k
R327K27k
R4820R820
R55K15.1k
R633K33k
R7470K470k
R815K15k
R9100K100k
R10100R100
Capacitors 8
C133n33n
C2820p820p
C3100n100n
C4100n100n
C5470p470p
C1010u10uElectrolytic capacitor
C121u1uElectrolytic capacitor
C13100u100uElectrolytic capacitor
Diodes 2
D21N41481N4148
D31N58171N5817
Transistors 4
Q1PN2222PN2222
Q2PN2222PN2222
Q3BS170BS170
Q42N50882N5088
Potentiometers 1
FUZZ1K fixed resistor1K FIXED RESISTOR
LEDs 1
D13mm Red LED3MM RED LED