FuzzDog BoxOfTone50 User manual

Box Of Tone 50
Boutique Boost/Overdrive
Contents of this document are ©2016 edal arts Ltd.
No reproduction permitted without the express written
permission of edal arts Ltd. All rights reserved.

BOM
R1 1M
R2 2M2
R3 47R
R4 330R
R5 3K3
R6 2K2 (CLR)
D1,2* 1N60
C1 47n
C2 100n
C3,4 47u electrolytic
Q1** 2N5088
BIAS 1KB
*Many different diodes have been
reported in ‘de-gooped’ versions of
this pedal. Experiment to find your
ideal pair. BAT46 reportedly sound
very good.
** Other transistors can be used.
Again, experiment if you feel like it.
Schematic

The power and signal pads on the CB conform to the FuzzDog Direct Connection format,
so can be paired with the appropriate daughterboard for quick and easy offboard wiring.
Be very careful when soldering the transistor, LED and diodes. 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. Keep exposure to heat to a minimum (under 2 seconds).
Be very careful when bending the legs of the germanium diodes in D07 cases. The glass
casing is very brittle where the leg enters it. You should grip the leg with some fine needle-
nosed pliers pushed right against the glass body, then bend the leg with your fingers. The
pliers will take the strain away from the body.
The cathode (striped end) of the diodes go into the square pads. The anode (long leg) of
electrolytic capacitors go into the square pads.
Snap the small metal tag off the pot so it can be mounted flush in the enclosure.
If you’re using a footswitch daugherboard don’t bother soldering R6. You’ll use that on the
daughterboard instead.
CB Layout ©2016 edal arts Ltd.

Test the board!
UNDER NO CIRCUMSTANCES will troubleshooting help
be offered if you have skipped this stage. No ex eptions.
On e you’ve finished the ir uit it makes sense to test is before starting on
the swit h and LED wiring. It’ll ut down troubleshooting time in the long
run. If the ir uit works at this stage, but it doesn’t on e you wire up the
swit h - guess what? You’ve probably made a mistake with the swit h.
Solder some ni e, long lengths of wire to the board onne tions for 9V, GND,
IN and OUT. Conne t IN and OUT to the ja ks as shown. Conne t all the
GNDs together (twist them up and add a small amount of solder to ta k it).
Conne t the battery + lead to the 9V wire, same method. Plug in. Go!
If it works, ra k on and do your swit h wiring. If not... aw man.
At least you know the problem is with the ir uit. Find out why, get it
working, THEN worry about the swit h et .
BATTERY
IN OUT
Your nice, new circuit board
INCLUDING WIRED POTS!!!!
IN 9V GND OUT

(if using a daughterboard please refer to the relevant document)
Wire it up - with battery
This circuit is standard, Negative GND. Your power supply should be
Tip Negative / Sleeve ositive. That’s the same as your standard pedals (Boss etc),
and you can safely daisy-chain your supply to this pedal.
The BOARD GND connections don’t all have to connect to one point. They can be
daisy-chained around the circuit, using larger connection points (such as jack socket
lugs) for multiple connections. As long as they all connect together in some way.
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+
+

(if using a daughterboard please refer to the relevant document)
Wire it up - DC only version
L
E
D
BOARD
OUT
BOARD
9V
BOARD
GND
BOARD
GND
BOARD
GND
BOARD
INPUT
+
IN
OUT
L
E
D
BOARD
GND
BOARD
LED+
This circuit is standard, Negative GND. Your power supply should be
Tip Negative / Sleeve ositive. That’s the same as your standard pedals (Boss etc),
and you can safely daisy-chain your supply to this pedal.
The BOARD GND connections don’t all have to connect to one point. They can be
daisy-chained around the circuit, using larger connection points (such as jack socket
lugs) for multiple connections. As long as they all connect together in some way.

Drilling template
Hamm nd 1590B
60 x 111 x 31mm
Rec mmended drill sizes:
P t 7mm
Jacks 10mm
F tswitch 12mm
DC S cket 12mm
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.
edal arts Ltd can accept no responsibility for incorrect drilling of enclosures.
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