Akashic Guitar effects PCB lookup
SQUARESAWTRIANGLE

1590B · 3 knobs

Parasit Studio

Multiwave Guitar Synth

Controls
Square · Saw · Triangle
Price
see vendor

From the vendor

The Multiwave Guitar Synth is a guitar controlled oscillator with 3 different waveshapes; saw, triangle and square. It also has an 3-way octave control and a special ringmod setting aswell for a wide range of sound shaping.

This was the first pedal I designed that has different waveshapes other than just square waves. It uses a PLL to multiply the input frequency by 128, then a switched capacitor creates the stepped triangle wave and saw tooth outputs.

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Multiwave stripboard layout build

DIY kits available from Das Musikding Smallbear Electronics

• PCB available in the shop

• Build document PDF • Stripboard layout PDF

...Back to PEDALS

Schematic

The schematic is in the vendor's build document, page 7. Open the build document. No KiCad fragment has been drawn for this circuit yet.

Parts list 48 rows

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RefValueNormalizedTypeNotes
Resistors 21
R11M1M
R21M1M
R31M1M
R41M1M
R510K10k
R6330K330k
R747K47k
R84.7K4.7k
R92.2K2.2k
R10470K470k
R1110K10k
R12100K100k
R13100K100k
R1427K27k
R1527K27k
R16330K330k
R17150K150k
R18100K100k
R194.7K4.7k
R204.7K4.7k
R211K1k
Capacitors 17
C1100nF100n
C2100nF100n
C32.2nF2.2n
C44.7nF4.7n
C5100pF100p
C6100nF100n
C71nF1n
C8220nF220n
C92.2uF2.2u
C10220pF220p
C11100nF100n
C12100nF100n
C13100nF100n
C14100nF100n
C15100nF100n
C16100uF100u
C1747uF47u
Diodes 1
D11N40011N4001
Transistors 1
Q12N39042N3904
ICs 5
U1CD4046BECD4046BE
U2CD4040BECD4040BE
U3CD4066BECD4066BE
U4CD4069UBECD4069UBE
U5TL072TL072
Potentiometers 3
SQUAREA100KA100kPotentiometer
SAWA100KA100kPotentiometer
TRIANGLEB100KB100kPotentiometer