Akashic Guitar effects PCB lookup
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1590BB · 1 knobs

From the vendor

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DARKADIATOR

The Darkadiator is a discrete (fully transistor based) glitchy and gated fuzz with PWM, octave down and LFO modulation.

This DIY project started as a nerdy personal challenge. I wanted to build the Arcadiator (the same features), but using only discrete components (no IC's - 100% transistor based) and only using common "jellybean" transistors.

I had the complete version running on the breadboard, but I decided to make it a bit different than the original Arcadiator to set it apart and to keep the component count reasonable. It turned out as a very cool guitar synth: The Darkadiator (short for Discrete-Arcadiator, although the final version is quite different).

Features • Either straight square Wave Fuzz, one octave down or both • Two modes: PWM or Lowpass • Width/Cutoff control • ​LFO modulation: Chop or alternating octaves • ​Control Voltage input for the LFO speed

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• PCB available in the shop

• Build document PDF • Stripboard layout PDF

DIY kits available from Das Musikding Smallbear Electronics

Schematic

The schematic is in the vendor's build document, page 8. Open the build document. No KiCad fragment has been drawn for this circuit yet.

Parts list 52 rows

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Resistors 24
R20100K100k
R12.2M2.2M
R2110K10k
R2470K470k
R2210K10k
R3470K470k
R23100K100k
R410K10k
R2410K10k
R510K10k
R610K10k
R7330R330
R8100K100k
R91K1k
R101K1k
R1110K10k
R1210K10k
R131K1k
R14100K100k
R15100K100k
R161K1k
R1710K10k
R1810K10k
R1947K47k
Capacitors 12
C1100nF100n
C2100nF100n
C31nF1n
C42.2uF2.2u
C51uF1u
C610uF10u
C710uF10u
C8100pF100p
C910nF10n
C10100nF100n
C11100nF100n
C12100uF100u
Diodes 3
D11N41481N4148
D21N41481N4148
D31N40071N4007
Transistors 12
Q12N39042N3904
Q22N39042N3904
Q32N39042N3904
Q42N39042N3904
Q52N39042N3904
Q62N39042N3904
Q72N39042N3904
Q82N39042N3904
Q92N39042N3904
Q102N39042N3904
Q112N39042N3904
Q122N39042N3904
Potentiometers 1
RATEB25KB25kPotentiometer