Akashic Guitar effects PCB lookup
BLENDVOLUME

1590B · 2 knobs

From the vendor

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THEREMIN FUZZ

The Theremin Fuzz is a guitar effect that produces a sound similar to a real theremin instrument, but controlled with the input from your guitar. Just like the ITU Guitar Synth this one uses a PLL VCO (Voltage Controlled Oscillator) for the main sound, but in a much smaller and easier to control format.

This was developed basically per request, as many people has been asking for the theremin sound of the Into the Unknown, but in a smaller version with not too many knobs. However, this one sets itself apart from the Into the Unknown alittle because it can do unity octave (the ITU only goes one or two octaves higher). It creates a cool layered sound when blended with the straight square wave fuzz.

This is the perfect pedal for freaky retro space and horror effects!

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DIY kits available from Das Musikding Smallbear Electronics

• PCB available in the shop • Fully assembled pedal available in the shop

• Build document PDF • Stripboard layout PDF

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 31 rows

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RefValueNormalizedTypeNotes
Resistors 14
R11M1M
R21M1M
R32.2M2.2M
R41M1M
R510K10k
R610K10k
R71K1k
R8470K470k
R910K10k
R1010K10k
R11100K100k
R12100K100k
R1347K47k
R1547K47k
Capacitors 10
C1100nF100n
C24.7nF4.7n
C3100nF100n
C433nF33n
C52.2nF2.2n
C61nF1n
C7100nF100n
C82.2uF2.2u
C9100uF100u
C102.2uF2.2u
Diodes 1
D11N40011N4001
ICs 3
U1CD4069UBECD4069UBE
U2CD4013BECD4013BE
U3CD4046BECD4046BE
Potentiometers 2
BLENDB50KB50kPotentiometer
VOLUMEA100KA100kPotentiometer
Trimmers 1
TRIMPOT200K200kTrimmer