Akashic Guitar effects circuit lookup
VOLUME

1590BB2 · 1 knob

From the vendor

I.Steddi Go is a clean tube preamp/D.I. for guitar and bass. It was designed to be as simple as possible, with only a volume control. It has an additional switch on the face to allow the 1/4″ output to act as a dry-pass through or as an additional preamp output.

Each PCB also includes a “12AX7-LEFT” PCB for mounting the tube socket and a D.I./XLR PCB for mounting the XLR jack, ground lift switch, and D.I. transformer. The optional transformer is the Unagi E4305, the same transformer used in the Sushi Box FX Finally v3, Venus Z, Neptunium, and Grand Slampegg.

Schematic

The schematic is in the vendor's build document, page 4. Open the build document. No KiCad fragment has been drawn for this circuit yet.

Parts list 25 rows

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RefValueNormalizedTypeNotes
Resistors 12
R1100k100k1/4W Resistor
R5100k100k1/4W Resistor
R268k68k1/4W Resistor
R31M1M1/4W Resistor
R41k51.5k1/4W Resistor
R61k1k1/4W Resistor
R91k1k1/4W Resistor
R72k22.2k1/4W Resistor
R8220k220k1/4W Resistor
R1010k10k1/4W Resistor
R114k74.7k1/4W Resistor
R12560R5601/4W Resistor
Capacitors 4
C1680n680nFilm capacitor
C247u47uElectrolytic capacitor
C310u10uHV Electrolytic capacitor250V
C61n51.5nFilm capacitor
Diodes 3
D11N58171N5817Schottky diode
D2UF4007UF4007Ultra-fast rectifier
D31N40071N4007Generic rectifier
Transistors 2
M1IRF740IRF740N-Channel MOSFET
Q12N39042N3904NPN Transistor
ICs 1
U1NE555NE555Timer
Inductors 1
L1100uH100uH100uH 2A Inductor
Potentiometers 1
VolumeA1MA1M9mm Potentiometer
Other 1
V112AT712AT7Dual Triodeor 12AX7