Akashic Guitar effects PCB lookup
LEVELTONEPITCHBLEND

1590BB · 4 knobs

Parasit Studio

Subspace Transmission

Category
Fuzz
Controls
Level · Tone · Pitch · Blend
Price
see vendor

From the vendor

...Back to PEDALS

SUBSPACE TRANSMISSION

Subspace Transmission is a square wave fuzz with a recording and playback feature based on the ISD1820 voice recording chip. It can record up to 20 seconds and the playback can be repeated and pitched up or down. It's perfect for playing along to your riffs and coming up with new ideas, or why not make a short repeating loop and pitch it down for some sick drone sounds!

Please note that it can't be used to do overdubs because of the limitations of the chip and the repeat is not fluid. There's always a short delay between the repeats. But it's still pretty awesome what a 14 pin dip chip can do. :)

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• PCB available in the shop

• Build document PDF

DIY kit available from Das Musikding

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 48 rows

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RefValueNormalizedTypeNotes
Resistors 22
R182K82k
R22390K390k
R210K10k
R23100K100k
R347K47k
R2412K12k
R447K47k
R252.7K2.7k
R51M1M
R6100K100k
R710K10k
R81M1M
R91M1M
R1010K10k
R111M1M
R121M1M
R1333K33k
R1422K22k
R1510K10k
R1610K10k
R17100K100k
R1810K10k
Capacitors 16
C14.7uF4.7u
C21nF1n
C3100nF100n
C42.2uF2.2u
C5100nF100n
C6100nF100n
C7100nF100n
C810nF10n
C9220pF220p
C10100nF100n
C115.6nF5.6n
C12100uF100u
C13100uF100u
C14100nF100n
C15100nF100n
C16100nF100n
Diodes 3
D11N40011N4001
D21N41481N4148
D31N41481N4148
ICs 3
IC1TL074TL074
U1ISD1820ISD1820
U2CD4069UBECD4069UBE
Potentiometers 4
LEVELB100KB100kPotentiometer
TONEB100KB100kPotentiometer
PITCHB100KB100kPotentiometer
BLENDB50KB50kPotentiometer