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ATTACKSENSITIVITYDECAYTREBLEDISTORTIONBASS

125B · 6 knobs

PedalPCB· PCB477

Lowballer Twin Envelope Filter

Based on the Electro-Harmonix Bassballs· 1 other board clones it

Category
EQ / Filter
Controls
Attack · Sensitivity · Decay · Treble · Distortion · Bass
Price
$12.00in stock
Tags
125B
Buy the PCB at PedalPCB Build document5/12/22

From the vendor

Controls

• Attack

• Sensitivity

• Decay

• Treble

• Distortion (Toggle switch)

• Bass

Specifications

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

Documentation

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 58 rows

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RefValueNormalizedTypeNotes
Resistors 28
R12M22.2MResistor, 1/4W
R22K72.7kResistor, 1/4W
R3220K220kResistor, 1/4W
R44K74.7kResistor, 1/4W
R5220K220kResistor, 1/4W
R62M22.2MResistor, 1/4W
R7100R100Resistor, 1/4W
R847K47kResistor, 1/4W
R93K33.3kResistor, 1/4W
R104K74.7kResistor, 1/4W
R11100K100kResistor, 1/4W
R12470K470kResistor, 1/4W
R13470K470kResistor, 1/4W
R142K72.7kResistor, 1/4W
R15220K220kResistor, 1/4W
R1647K47kResistor, 1/4W
R1722K22kResistor, 1/4W
R18470K470kResistor, 1/4W
R19470K470kResistor, 1/4W
R2047K47kResistor, 1/4W
R214K74.7kResistor, 1/4W
R2222K22kResistor, 1/4W
R232K72.7kResistor, 1/4W
R2427K27kResistor, 1/4W
R1004K74.7kResistor, 1/4W
R10147R47Resistor, 1/4W
R10247K47kResistor, 1/4W
R10347K47kResistor, 1/4W
Capacitors 15
C147n47nFilm capacitor, 7.2 x 2.5mm
C210u10uElectrolytic capacitor, 5mm
C3470n470nTantalum capacitor
C44u74.7uElectrolytic capacitor, 5mm
C5220n220nFilm capacitor, 7.2 x 5.0mm
C647n47nFilm capacitor, 7.2 x 2.5mm
C7560p560pCeramic capacitor
C8220n220nFilm capacitor, 7.2 x 5.0mm
C922n22nFilm capacitor, 7.2 x 2.5mm
C1022n22nFilm capacitor, 7.2 x 2.5mm
C114n74.7nFilm capacitor, 7.2 x 2.5mm
C124n74.7nFilm capacitor, 7.2 x 2.5mm
C13560p560pCeramic capacitor
C100100u100uElectrolytic capacitor, 5mm
C10110u10uElectrolytic capacitor, 5mm
Diodes 4
D11N9141N914Signal diode, DO-35
D21N40011N4001Rectifier diode, DO-41
D31N40011N4001Rectifier diode, DO-41
D1001N58171N5817Schottky diode, DO-41
Transistors 3
Q12N50882N5088BJT transistor, NPN TO-92
Q22N50882N5088BJT transistor, NPN TO-92
Q32N50882N5088BJT transistor, NPN TO-92
ICs 2
IC1LM1458LM1458Dual op-amp, DIP8
IC2JRC4558JRC4558Dual op-amp, DIP8
Potentiometers 5
ATTACKB1KB1k16mm right-angle PCB mount pot
SENSB10KB10k16mm right-angle PCB mount pot
DECAYB1MB1M16mm right-angle PCB mount pot
TREBLEB5KB5k16mm right-angle PCB mount pot
BASSB5KB5k16mm right-angle PCB mount pot
Switches 1
DISTSPDTSPDTToggle switch, SPDT2-position (ON/ON)

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