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0415 Guitar Synth kit

Item number: 1622

4 octave square wave, 2 up, 2 down.

Category: Parasit Studio kits


starting from 26,00 €

including 16% VAT., plus shipping

Not available now!


The 0415 Guitar Synth V.2 is a fun a simple pedal that transforms the signal into a square wave, up to five octaves apart: one or two octaves up can be mixed with one or two octaves down for super synthy sounds.

Since this circuit is based around a PLL VCO, it doesn't scramble chords like octave up fuzzes normally do, and it tracks well over the entire fretboard. Single note playing still works best to avoid ?octave jumping? but simple chords can sound really cool.

This circuit works best with high output pickups (although I had decent results with single coils aswell). It is a gated circuit by nature of the schmitt trigger that turns the signal into a squarewave. If you are using single coils and need more sustain, try a boost or compressor in front. To improve the octave tracking, use your neck pickup with the tone rolled off.

This kit is a creation by in cooperation with If you have any problem with the content of the kits like mising or wrong parts, please contact Musikding (Klaus) at For any technical problem relating to building this project, please contact Fredrik at

Here´s the parts list: Parts List (BOM)

This kit contains all parts you need to build a fully functional effect pedal. Not included in the kit, but also good to have:

  • Aluminium enclosure: select one from top
  • 9V DC power supply
  • 2 nice knobs for the potentiometer, up to 20mm diameter and for 6.3mm shafts
  • Decal, transfer or transparent sheets for labeling

0415 Guitar Synth docs.

Effect-Type: Fuzz Octave Mod/Echo
Instrument: Guitar Bass Synthesizer


Ratings (8)

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Total entries: 3
5 from 5 Great

Good product, straightforward assembly, excellent customer support - one pot was broken upon arrival and they immediately sent a replacement.

., 23.05.2017
5 from 5 Great kit

Simple and straightforward synth. The Parasit Kits are always very clean builds.

., 17.10.2017
5 from 5 Funny pedal

The Cv in is a must to have !!!

., 28.05.2018
Total entries: 3

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