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Parasit Studio

Quantum Defrakulator MK2 Bill of Materials (BOM)

* Current Limiting Resistor for the sequencer LEDs. They share a 
single resistor since there's always just one LED engaged at the 
time. Use the appropriate value for your LED type.

I recommend using a 4.7K resistor for a diffused LED or a 15K 
resistor for a clear superbright LED.

I recommend using multilayer ceramic capacitors for the 220nF 
caps to keep the size down. For the larger values use electrolytic 
capacitors as usual.

** LED5 is not supposed to be external. It's just part of the filter 
circuit, so just mount it on the PCB on the component side like the 
rest of the components. The LED type/size and colour is not critical.

Things not included in the BOM that you will also need:

1x Hammond BBDD/JJ enclosure, 1x DC jack, 1x 6.3mm mono jack for 
the output, 12x knobs, 4x LED bezels (optional), 2x 3.5mm jacks 
(optional, for the CV inputs)

Resistors

R21

47K

IC's

R1

100K

R22

CLR*

U1

CD4069UBE

R2

2.2K

Capacitors

U2

CD4052

R3

22K

C1

220nF

U3

CD4046

R4

100K

C2

47uF

U4

CD4015

R5

100K

C3

220nF

U5

CD4093

R6

4.7K

C4

220nF

R7

220K

C5

220nF

Potentiometers

R8

4.7K

C6

100nF

RATE

C50K

R9

220K

C7

100nF

FREQ 2

C100K

R10

330K

C8

2.2uF

FREQ 3

C100K

R11

15K

C9

220pF

PORTAMENTO

A1M

R12

330K

C10

100nF

FILTER

B500K

R13

220K

C11

4.7nF

rest of the pots (x7)

B100K

R14

100K

C12

6.8nF

Switches

R15

47K

C13

100uF

LFO/STEPS

DPDT on/off/on

R16

220K

Diodes

NAND/XOR

DPDT on/off/on

R17

100K

D1

1N4001 1x Momentary push button

R18

100K

R19

100K

LED5** 3mm normal red diffused LED

R20

100K

4x LED's (for the sequencer)

Summary of Contents for MK3

Page 1: ...he correct version of the build document to match the version of your PCB The Quantum Defrakulator is a drone synthesizer with 3 square wave oscillators and one LFO low frequency oscillator Each oscil...

Page 2: ...ow you can push a momentary button to manually toggle through the steps of the sequencer when the LFO is off If the button is pressed while the LFO is on it will temporarily stop the sequencer While t...

Page 3: ...l jumper and petting your cat dog while building Always use sockets for IC chips to avoid heating them directly It also makes it much easier to swap them out if needed Pay special attention to the ori...

Page 4: ...is not critical Things not included in the BOM that you will also need 1x Hammond BBDD JJ enclosure 1x DC jack 1x 6 3mm mono jack for the output 12x knobs 4x LED bezels optional 2x 3 5mm jacks option...

Page 5: ...t 2 Place the switches inside the enclosure 3 Put the LED s in the PCB without soldering 4 Carefully put everything together and make sure that everything lines up 5 Solder everything in place In this...

Page 6: ...witch to disengage the battery while not in use CV jack Wiring To hook up the CV control voltage input jacks connect the CV pad on the PCB to the tip of a 3 5mm jack or jack of your choice Make sure t...

Page 7: ...ack to your own preference Make sure your printer is printing 100 print size and isn t doing any scaling Use at your own risk This template is approximate The pot and switch placements are exactly the...

Page 8: ...Parasit Studio Schematic...

Page 9: ...npedals com forum index php board 84 0 If you have bought the Musikding kit and have recieved a faulty or missing component please contact musikding directly kontakt musikding de Terms of use PCB s fr...

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