GuitarPCB Fuzzstortion User manual

Fuzzstortion
With 80+ unique circuits under our belt we are getting picky about what we release.
This time it is the Fuzzstortion, not because it is less filling but because it sounds great!
This Guitar Volume sensitive circuit achieves tube amp style breakup to Fuzzy Saturation.
In between you’ll find an array of useful overdrive and distortion tones to play with.
The Fuzzstortion will also handle bass frequencies extremely well.
No need for a tone control as it delivers the full frequency provided by your rig. See Demo
Part
Value
Part
Value
Part
Value
R1
10k
C1
22n
Q1
PF5102
R2
10k
C2
1n
Q2
MPSA13
R3
22k
C3
100u
D1
1N4001
R4
200R
C4
68n
D2
LED-CA-BiColor
R5
1k8
C5
100n
VOL
A100k
R6
100R
C6
100u
GAIN
B250K
Build Notes: You may use 9mm potentiometers as an on-board pot if you wish. Simply solder them to
the back side of the board and align the lug number with the silkscreen on the board.
Use Sockets for the transistors so you may try different ones and prevent overheating the transistor.
This board comes with dual power and ground pads which are convenient for combo builds.

STATUS LED
D2 is a common anode bi-color LED. The diagram at right shows the
pin-out, schematic symbol and pad connection for a common anode LED.
The pin-out for the bi-color LED is typically (but not always) as follows:
The lead 1 pad on the circuit board is marked with a white box.
When connected correctly, the LED will light red when power is applied
and the circuit is in bypass mode. The LED will light green when in effects
mode. If you wish to use a standard LED, connect the anode to the
middle pad and the cathode to the right (non-white) pad to show the
circuit in effects mode. If you use a 3PDT wiring board that includes
an LED, you can omit this LED and R5. *R5 is the LED’s Current Limiting
Resistor (CLR). If you use a different LED, you may want to change this
value to adjust LED brightness.
If you are using one of GuitarPCB’s handy 3PDT wiring boards, pads S4, S5, S6 and D8 would be ignored and R5
would not be installed. See wiring guide below for reference.
Soldering Tutorial on Youtube
Need a kit? Check out our authorized worldwide distributors:
USA – Check out PedalPartsAndKits for all your GuitarPCB kit needs in the USA.
Europe – Das Musikding Order either boards or kits direct from Europe.
PedalPartsAustralia - Order either boards or kits direct from Australia
If they do not have a KIT listed send them a note asking if they can help you out.
This document, PCB Artwork and Schematic Artwork © GuitarPCB.com. Schematic, PCB and
this document by Bruce R. Wilkie1 and Barry. All copyrights, trademarks, and artworks
remain the property of their owners.Distribution of this document is prohibited without
written consent from GuitarPCB.com. GuitarPCB.com claims no rights or affiliation to those
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