Akashic Guitar effects PCB lookup
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1590B · 1 knobs

Parasit Studio

U-235 Suboctave Generator

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From the vendor

The U-235 is an analog monophonic octave down pedal based around a CD4046 PLL chip that is used for octave dividing. It also has a detuned mode and a CV input.

Features • Clean signal coming through at all times • Semi-Clean lowpass filtered octave down • One and two octave down • Detuned Mode - in between one and two octaves down • ​CV input for controlling the octave setting

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• PCB available in the shop

• Build document PDF • Stripboard layout PDF

DIY kits available from Das Musikding Smallbear Electronics

...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 49 rows

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RefValueNormalizedTypeNotes
Resistors 24
R11M1M
R21M1M
R310K10k
R4470K470k
R522K22k
R6330K330k
R7330K330k
R810K10k
R910K10k
R1010K10k
R1110K10k
R12100K100k
R13100K100k
R14100K100k
R15100K100k
R1622K22k
R17100K100k
R184.7K4.7k
R19100K100k
R20100K100k
R21330K330k
R2239K39k
R2310K10k
R244.7K4.7k
Capacitors 19
C1100nF100n
C22.2nF2.2n
C310nF10n
C4100uF100u
C54.7nF4.7n
C633nF33n
C7100nF100n
C810nF10n
C922nF22n
C10100nF100n
C11220nF220n
C1210uF10u
C13470pF470p
C14100nF100n
C1510nF10n
C161nF1n
C17100nF100n
C18100uF100u
C19100nF100n
Diodes 1
D11N58171N5817
ICs 3
U1TL072TL072
U2TL074TL074
U3CD4046BECD4046BE
Potentiometers 1
LEVELC100KC100kPotentiometer
Trimmers 1
TRIM1M1MTrimmer