FuzzDog Super Fuzz User manual

Super Fuzz
Shin-Ei’s utterly
uncompromising monster
Contents of this document are ©2018 Pedal Parts Ltd.
No reproduction permitted without the express written
permission of Pedal Parts Ltd. All rights reserved.

Important notes
If you’re usin any of our footswitch dau hterboards,
DOWNLOAD THE DAUGHTERBOARD DOCUMENT
•Download and read the appropriate build document for the daughterboard
as well as this one BEFORE you start.
•DONOT solder the supplied Current Limiting Resistor (CLR) to the main
circuit board even if there is a place for it. This should be soldered to the
footswitch daughterboard.
POWER SUPPLY
Unless otherwise stated in this document this circuit is designed to be
powered with 9V DC.
COMPONENT SPECS
Unless otherwise stated in this document:
•Resistors should be 0.25W. You can use those with higher ratings but
check the physical size of them.
•Electrolytics caps should be at least 25V for 9V circuits, 35V for 18V
circuits. Again, check physical size if using higher ratings.
LAYOUT CONVENTIONS
Unless otherwise stated in this document, the following are used:
•Electrolytic capacitors:
Long leg (anode) to square pad.
•Diodes:
Striped leg (cathode) to square pad.
•ICs:
Square pad indicates pin 1.

Schematic + BOM
R1 22
R2 100
R3 100
R4 1 8
R5 47
R6 470
R7 10
R8 47
R9 3 3
R10 150
R11 10
R12 220
R13 10
R14 100
R15 10
R16 100
R17 470R
R18 22
R19 1 8
R20 22
R21 47
R22 470R
R23 10
R24 22
R25 10
R26 100 (750 )
R27 15 (75 )
R28 10 (24 )
R29 1 (1 2)
R30 100
C1 10u
C2 10u
C3 10u
C4 10u
C5 10u
C6 10u
C7 10u
C8 100n
C9 10u
C10 10u
C11 1n
C12 100n
C13 10u
C14 10u
C15 2n2*
C16 100u
Q1-6 2N5088**
D1,2 1N34A
D3 1N4001
D4,5 1N4148***
OCT 10 TRIM
EXP 50 B
VOL 50 B
TONE SPDT ONON
DIODE SPDT ONON
Alternative values shown in blue are from the Wattson EFY-6 version of the Superfuzz, giving higher output.
*sometimes shown as 1n
**any low-ish gain NPN silicon transistors can be experimented with, i.e. 2N222A, 2N3904, BC107
***optional. Don’t bother putting them in if you’re not using the diode selection switch. Other diodes can be
experimented with.

The power and signal pads on the PCB conform
to the FuzzDog Direct Connection format, so can
be paired with the appropriate daughterboard for
quick and easy offboard wiring. Check the
separate daughterboard document for details.
Be very careful when soldering the LEDs, diodes
and transistors. They’re very sensitive to heat.
You should use some kind of heat sink (crocodile
clip or reverse action tweezers) on each leg as
you solder them. eep exposure to heat to a
minimum (under 2 seconds).
Snap the small metal tag off the pots so they can
be mounted flush in the box.
You should solder all other board-mounted
components before you solder the pots. Once
they’re in place you’ll have no access to much of
the board. Make sure your pots all line up nicely.
The best way to do that is to solder a single pin
of each pot in place then melt and adjust if
necessary before soldering in the other two pins.
If your pots don’t have protective plastic jackets
ensure you leave a decent gap between the pot
body and the PCB otherwise you risk shorting
out the circuit.
If you aren’t adding the diode selection switch
you’ll have to jumper the correct pads as shown
above depending on whether you’re using D1-2
(blue) or D4-5 (red).
Be VERY careful when bending the legs of the
1N34A. The glass case is very fragile and likely
to break. Best to hold the leg with some needle-
nosed pliers against the case, and bend the leg
with your finger so the pliers are taking any
strain away from the diode.
PCB layout ©2018 Pedal Parts Ltd.

Test the board!
Check the relevant dau hterboard document for more
info before you undertake this sta e.
UNDER NO CIRCUMSTANCES will troubleshootin help
be offered if you have skipped this sta e. No exceptions.
Once you’ve finished the circuit it makes sense to test is before starting on the switch and LED
wiring. It’ll cut down troubleshooting time in the long run. If the circuit works at this stage, but it
doesn’t once you wire up the switch - guess what? You’ve probably made a mistake with the switch.
Solder some nice, long lengths of wire to the board connections for 9V, GND, IN and OUT. Connect
IN and OUT to the jacks as shown. Connect all the GNDs together (twist them up and add a small
amount of solder to tack it). Connect the battery + lead to the 9V wire, same method. Plug in. Go!
If you’re using a ribbon cable you can tack the wires to the ends of that. It’s a lot easier to take them
off there than it is do desolder wires from the PCB pads.
If it works, carry on and do your switch wiring. If not... aw man. At least you know the problem is
with the circuit. Find out why, get it working, THEN worry about the switch etc.
Your completed circuit board
includin pots

Wiring shown above will disconnect the battery when you remove the jack plug
from the input, and also when a DC plug is inserted.
The Board GND connections don’t all have to directly attach to the board. You
can run a couple of wires from the DC connector, one to the board, another to
the IN jack, then daisy chain that over to the OUT jack.
It doesn’t matter how they all connect, as long as they do.
This circuit is standard, Negative GND. Your power supply should be Tip
Negative / Sleeve Positive. That’s the same as your standard pedals (Boss etc),
and you can safely daisy-chain your supply to this pedal.
L
E
D
BOARD
OUT
BOARD
9V
BOARD
GND
BOARD
GND
BOARD
GND
BOARD
INPUT
BATTERY
+
IN
OUT
L
E
D
BOARD
GND
BOARD
9V
+
Wire it up (if using a daughterboard please refer to the relevant document)

This template is a rough guide only. You should ensure correct marking of your
enclosure before drilling. You use this template at your own risk.
Pedal Parts Ltd can accept no responsibility for incorrect drilling of enclosures.
FuzzDog.co.uk
Drilling template
Hammond 1590B
60 x 111 x 31mm
It’s a good idea to drill the pot and
toggle switch holes 1mm bigger i
you’re board-mounting them.
Wiggle room = good!
Recommended drill sizes:
Pots 7mm
Jacks 10mm
Footswitch 12mm
DC Socket 12mm
Toggle Switches 6mm
21mm 23mm
32mm