FuzzDog Toxic Minx Distortion plus User manual

Toxic Minx
Distortion.... plus
PedalParts.co.uk

Schematic
BOM
R1 1M
R2 1M
R3 1M
R4 10K
R5 4K7
R6 1M
R7 10K
R8 2K2 (CLR)
C1 1u
C2 10n
C3 1n
C4 47n
C5 10p
C6 1u tant
C7 1n
IC 4558
D1,2 1N4148
or 1N60P
GAIN 1MA*
OL 100KA
*500KC supplied wit kit. T e gain sweep wit t e original pot is rubbis .
Use 1N4148 for arder, buzzier sound
Use 1N60P for a softer tone
NOTE: t e image on t e front page doesn’t ave t e tantalum cap -
I didn’t ave any w en I did t e test build. It also s ows a 4n7 instead of a 47n. Do !
No wonder it sounded t in at first.

Wiring shown overleaf will disconnect the battery when you
remove the jack plug from the input, and also when a DC plug
is inserted.
Snap the little metal tag off the pot to mount it flush
in the box.
You MUST use some kind of heat sink on the legs
of the diodes when soldering. They aren’t keen on
heat. Any more than a couple of seconds of iron
and they’re toast.
I’ve incorporated the Current Limiting Resistor for the
LED into the board for your pleasure.
1 2 3

Test the board!
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
9 , 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 9
wire, same method. Plug in. Go!
If it works, crack 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.
YRET
T
A
AT
B
NI UO TU

Wire it up
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.
Now... GO GET FUZZY!
PedalParts.co.uk
L
E
D
BOARD
OUT
BOARD
9V
BOARD
GND
BOARD
GND
BOARD
GND
BOARD
INPUT
BATTERY
+
IN
OUT
L
E
D
BOARD
GND
BOARD
LED+
+