Akashic Guitar effects circuit lookup
VOLUMEDRIVEEQAIRBOOSTHEADROOM (TOGGLE SWITCH)

125B · 6 knobs

PedalPCB· PCB163

Angry Andy Plus

Based on the JHS AT+

Category
Distortion
Controls
Volume · Drive · EQ · Air · Boost · Headroom (Toggle switch)
Price
$12.00in stock
Tags
125B
Buy the PCB at PedalPCB Build document1/7/24

From the vendor

Controls

• Volume – Controls the master output volume

• Drive– Controls the amount of signal gain

• EQ – Lowpass filter that removes higher frequencies

• Air – Similar to amplifier presence control

• Boost – Controls the level of boost (when active)

• Headroom (Toggle switch) – Toggles between three different “wattage” settings (25W, 50W, 100W)

• Drive (Footswitch) – Toggles Drive stage on/off

• Boost (Footswitch) – Toggles the Boost stage on/off

Details

• Designed for a 125B enclosure with top-mounted jacks

The company, product and service names used in this web site are for identification purposes only. All trademarks and registered trademarks are the property of their respective owners. This product is not manufactured or distributed by JHS Pedals, maker of the AT+.

PedalPCB is not affiliated with JHS Pedals.

Schematic

The schematic is in the vendor's build document, page 3. Open the build document. No KiCad fragment has been drawn for this circuit yet.

Parts list 61 rows

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RefValueNormalizedTypeNotes
Resistors 25
R11K1kResistor, 1/4W
R2510K510kResistor, 1/4W
R310K10kResistor, 1/4W
R44K74.7kResistor, 1/4W
R510K10kResistor, 1/4W
R651K51kResistor, 1/4W
R722K22kResistor, 1/4W
R81K1kResistor, 1/4W
R96K86.8kResistor, 1/4W
R10220R220Resistor, 1/4W
R113K63.6kResistor, 1/4W
R1210K10kResistor, 1/4W
R131K1kResistor, 1/4W
R141M1MResistor, 1/4W
R151K1kResistor, 1/4W
R161M1MResistor, 1/4W
R171K1kResistor, 1/4W
R1810K10kResistor, 1/4W
R191M1MResistor, 1/4W
R20470R470Resistor, 1/4W
R10010R10Resistor, 1/4W
R10122K22kResistor, 1/4W
R10222K22kResistor, 1/4W
CLR14K74.7kResistor, 1/4W* LED current limiting resistor (Boost)
CLR24K74.7kResistor, 1/4W* LED current limiting resistor (Drive)
Capacitors 20
C122n22nFilm capacitor, 7.2 x 2.5mm
C21u1uFilm capacitor, 7.2 x 5.0mm
C347n47nFilm capacitor, 7.2 x 2.5mm
C450p50pCeramic capacitor
C5220n220nFilm capacitor, 7.2 x 5.0mm
C6220n220nFilm capacitor, 7.2 x 5.0mm
C71u1uFilm capacitor, 7.2 x 5.0mm
C822n22nFilm capacitor, 7.2 x 2.5mm
C91n1nFilm capacitor, 7.2 x 2.5mm
C10220n220nFilm capacitor, 7.2 x 5.0mm
C11100p100pCeramic capacitor
C12100n100nFilm capacitor, 7.2 x 2.5mm
C13100p100pCeramic capacitor
C142u22.2uElectrolytic capacitor, 5mm
C1522n22nFilm capacitor, 7.2 x 2.5mm
C1622n22nFilm capacitor, 7.2 x 2.5mm
C100100n100nFilm capacitor, 7.2 x 2.5mm
C101100u100uElectrolytic capacitor, 5mm
C102100n100nFilm capacitor, 7.2 x 2.5mm
C103100u100uElectrolytic capacitor, 5mm
Diodes 7
D11N41481N4148Signal diode, DO-35
D21N41481N4148Signal diode, DO-35
D31N40041N4004Standard recovery diode, DO-41
D41N40041N4004Standard recovery diode, DO-41
D5REDRED3mm Red LED, Diffused
D6REDRED3mm Red LED, Diffused
D1001N58171N5817Schottky diode, DO-41
Transistors 1
Q1BC549CBC549CBJT transistor, NPN TO-92
ICs 2
IC1RC4558RC4558Dual op-amp, DIP8
IC2LM833LM833Dual op-amp, DIP8
Potentiometers 5
VOLUMEA100KA100k16mm right-angle PCB mount pot
DRIVEB100KB100k16mm right-angle PCB mount pot
BOOSTB100KB100k16mm right-angle PCB mount pot
AIRB25KB25k16mm right-angle PCB mount pot
EQB10KB10k16mm right-angle PCB mount pot
Switches 1
HEADROOMON/OFF/ONON/OFF/ONToggle switch, SPDT3-position (ON/OFF/ON)