PARASIT STUDIO QUANTOM DEFRAKULATOR User manual

Parasit Studio
QUANTOM
DEFRAKULATOR
Build Document last updated june 2018
for PCB version 1.0
The Quantom Defrakulator is a drone synthesizer with 3 square wave
os illators and one LFO (low frequen y os illator). Ea h os illator has
independant ontrols for frequen y and volume. With the LFO engaged,
os illator 1 turns into a 4-step sequen er.
Have fun!

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Note
•The Quantum Defrakulator output is meant to hook up to an
amplifier like a guitar amp.
It can't drive a speaker directly. If you want to drive a speaker you
will need to add an amplifier at the output, such as a LM 86 or
similar. There's plenty of simple 9v amplifier projects around if you
do a search. :-)
General builds tips
•Solder the low profile omponents first, from short to tall.
Re ommended order: resistors, diodes, IC so ket, film- aps,
ele trolyti s, pots.
•CMOS hips are very sensitive to stati harges and an be easily
damaged. It's a good idea to wear a anti-stati wristband or at
least avoid wearing a wool jumper and petting your at/dog while
building...
•Always use so kets for IC hips to avoid heating them dire tly. It
also makes it mu h easier to swap them out if needed.
•Pay spe ial attention to the orientation of the diodes and
ele trolyti s.
•This PCB is designed for board mounted angeled pots, but if you
want to use regular solderlug-pots, the square holes represents pin
1 of the pot.
•Cover the ba kside of the pots with pot overs or tape, so they
don't short out anything on the PCB.
•There are a LOT of pots on this PCB. Be sure to pla e them in the
PCB without soldering first, THEN pla e them in your drilled
en losure. Gently tighten the nuts to the en losure, then solder
LAST. Otherwise, it will be really hard to get this in your en losure.
•It an be a good idea to divide the pots and LED mounting into
separate steps, to make it easier to mount everything inside the
en losure.
•For example: mount the PCB inside the en losure without the LED's
first and solder the pots, then take out the PCB and put it ba k
inside again with the LED's, then solder the LED's.

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Quantum Defrakulator Bill of Materials
•* Current Limiting Resistor for the sequen er LED's. They share a
single resistor sin e there's always just one LED engaged at the
time. Use the appropriate value for your LED type. I re ommend
using a 4.7K resistor for a diffused LED or a 15K resistor for a lear
superbright LED.
•I re ommend using multilayer erami apa itors to keep the size
down of the 220nF aps. For the larger values use ele trolyti
apa itors as usual.
•For the momentary swit h you an use any type of momentary
swit h or push button. It an be either normally open or normally
losed, it doesn't matter.
•If you want to drive this effe t from a 9 volt battery, I re ommend
using an extra swit h (like a SPST or using two pins of a SPDT) as
an on/off swit h, to disengage the battery while not in use -
Resistors Capacitors C's
R1 10K C1 220nF U1 CD4013
R2 2.2K C2 47uF U2 CD4052
R3 CLR* C3 100nF U3 CD40106
R4 1M C4 220nF
R5 10K C5 220nF Potentiometers
R6 10K C6 22nF RATE C50K
R7 100K C7 22uF FILTER C50K
R8 100K C8 100uF Rest of the pots (x9) B100K
R9 100K C9 100nF
Diodes (11 pots total)
D1 1N4001
4x LED's (for the sequen er) Switches
1x optional LFO on/off LED LFO sw Momentary SPST

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Offboard Wiring
•9V pad to DC ja k positive lug (or battery lip +)
•GND pad to DC ja k negative (or battery lip -)
•OUT pad to output ja k Tip
•GND pad to output ja k sleeve
•LFO sw pads to momentary SPST swit h or button (which wire goes
to which switch lug doesn't matter)
Optional sequencer on/off indicator LED
•If you want an LED to indi ate when the LFO is running (like I have
in my omplete build, ombined inside the LFO button) this is how
you hook it up.
•Conne t the square ”LFO SW” pad to a urrent limiting resistor
•LED athode/negative side to the resistor
•LED anode/positive side to DC ja k (or battery lip) positive/+

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Drilling template (Hammond BBDD/JJ)
•+ one extra top hole for the momentary button/swit h!
I didn't include it on the template because people will probably use
different placements and different types of switches or buttons.
•Drill holes on the sides for the output jack and the DC jack to your
own preference.
•Make sure your printer is printing 100% print size and isn't doing
any s aling.
•Use at your own risk! This template is approximate.
•Measure and confirm before drilling!

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Schematic

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Troubleshooting
There's always a han e of running into trouble. To minimize error, follow
the BOM and general building tips arefully. Take your time and don't
rush. Take a break now and then. Use good solder, and it helps to have a
de ent soldering station insted of a heap iron.
If you are still having trouble, please visit the madbean forum Parasit
Studio subforum se tion and ask for help there.
http://www.madbeanpedals. om/forum/index.php?board=84.0
If you have bought the Musikding kit and have re ieved a faulty or
missing omponent, please onta t musikding dire tly.
[email protected]
Terms of use
PCB's from Parasit Studio are intended for DIY use only. Commer ial resale is
not allowed. It's meant for personal use, whi h means that it's not allowed to
build many pedals and sell them for profit to strangers using publi forums,
webshops or raiglist ads e t. However, it's totally ok to build a few pedals and
sell to your friends and bandmates. After all, that's what this hobby is about.
DIY or DIE!
www.parasitstudio.se
[email protected]