EPK Moon Fuzz Kit User manual

Moon Fuzz Kit
Building Manual

Effect Pedal Kits:
Moon Fuzz
A silicon fuzz with a dark and brooding character, the Moon Fuzz is
designed around the fuzz tones you can hear on Pink Floyd's Dark
Side of the Moon from 1973. But the Moon Fuzz is a versatile pedal
that goes way beyond that: at low settings it works great as an
overdrive pedal, something atypical with fuzz pedals, and at
maximum settings it delivers some thick and sick fuzz tones. The
Moon Fuzz reacts greatly to your playing dynamics, and thanks to its
voicing cuts perfectly through any mix.
Oppositely to many fuzz pedals the Moon Fuzz can be placed almost
anywhere in your effect pedal chain with almost no change in the
sound thanks to its internal configuration. Additionally, it's very
consistent and doesn't "get out of control" to a point where it's
almost unplayable other fuzzes do. It has five knobs that will allow
you to shape the sound to your desire:
- Volume, to set the amount of output of the pedal
- Pre adjusts the gain of the input transistor (noisier and more
agrgessive all the way up, and quieter as you dial it back)
- Sharp sets the amount of bass that will go to the fuzz section. This
translates in a sound going from a tight and thin to a full-voiced and
thick.
- Gain lets you dial the fuzz from a gritty and touch sensitive
overdrive to a fully saturated and aggressive fuzz.
- Filter sets the amount of brightness of the Moon Fuzz

BOM (1/2)
Resistors (13) Capacitors (14)
3 R1, R10, R11 56k 1 C1 10u (electrolytic)
2 R2, R9 100k 3 C2, C4, C11 100u (electrolytic)
1 R3 470k 1 C3 100p (ceramic)
3 R4, R6, R8 100 1 C5 5.6n
2 R5, R12 10k 1 C6 220n
1 R7 820 1 C7 4.7n
1 R13 2.7k 2 C8, C10 220p (ceramic)
1 C9 500p (ceramic)
1 C12 15n
1 C13 3.3n
1 C14 2.2n

BOM (2/2)
Diodes, Transistors and ICs Generic Parts and Potentiometers
3 Q1, Q2, Q3 2N5089/2N5088 1 Battery clip
1 DC Jack
1 RLED 1k LED resistor
1 LED Bezel
1 3PDT
2 IN, OUT 6.35mm Jacks
1 100k Linear (B) Potentiometer Filter
2 100k Logarithmic (A) Potentiometer Sharp, Vol
1 1k Linear (B) Potentiometer Gain
1 2k Linear (B) Potentiometer Pre

Component Placement

Board Layouts
3PDT PCB
Effect PCB

Building Tips
1- Pay attention to the orientation of the 3PDT! In the following picture
you can see how the 3PDT pins should be positioned (inserting the pins
in the holes can be a bit tight to avoid movement while soldering):
2- For a proper soldering you just have to apply the right amount of solder
wire. A right solder joint should have a concave shape around the joint
and look like this:
3- Don’t apply too much heat! When soldering, the time you hold the
solder iron against the joint should be as short as posible to avoid
damaging any part (a few seconds should be enough). If you can’t get a
solder joint right, let it cool a bit before trying again.
4- If having troubles with the building, checking the schematic in the last
page will help you find where the audio signal stops. When you find the
spot, check out that everything around that joint is ok (components
placed at their right place, solder joints…).

Building Tips
5- Pay attention to the parts that have a polarity and make sure they are
connected as in the component placement picture:
- ICs (they have a small dot or indication that must fit the indication in
the board
- Electrolytic capacitors (longer pin is connected to the “+” hole):
- Diodes (check for the mark and make it fit with the one in the PCB):
- Leds (longer pin is connected to the “+” hole)
- Transistors (inserted to fit the drawing in the PCB)

Building Tips
6- With the kit we include plastic PCB supports with an adhesive bottom. You
can use them to anchor the PCB to your enclosure for a better stability.
Just insert the PCB support tip into the 3.5mm holes and remove the
adhesive protective film.
To avoid any issue always check the latest building manual. Use the pictures
only as a reference! Colors/shapes of wires, PCB or parts can change slightly,
this doesn’t affect their functionality in any way.
Always double check part polarity, resistor and capacitor values,
potentiometer placement, IC orientation… before soldering.

Schematic