Akashic Guitar effects PCB lookup
LEVELGAINTREBLEMIDBASS

125B · 5 knobs

PedalPCB· PCB140

Ginsly’s Acoustic Preamp

Based on the K&K Sound Pure Preamp

Category
Preamp / Amp-in-a-box· Preamps
Controls
Level · Gain · Treble · Mid · Bass
Price
$8.00in stock
Tags
125B, Acoustic, Piezo
Buy the PCB at PedalPCB Build document12/14/25

From the vendor

Controls

• Level

• Gain

• Treble

• Mid

• Bass

Specifications

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

Documentation

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 33 rows

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RefValueNormalizedTypeNotes
Resistors 16
R11M1MResistor, 1/4W
R210K10kResistor, 1/4W
R31M1MResistor, 1/4W
R41M1MResistor, 1/4W
R510K10kResistor, 1/4W
R610K10kResistor, 1/4W
R715K15kResistor, 1/4W
R818K18kResistor, 1/4W
R91K1kResistor, 1/4W
R1010K10kResistor, 1/4W
R111K1kResistor, 1/4W
R1210K10kResistor, 1/4W
R1310R10Resistor, 1/4W
R101100K100kResistor, 1/4W
R102100K100kResistor, 1/4W
CLR4K74.7kResistor, 1/4W* LED current limiting resistor
Capacitors 10
C147n47nFilm capacitor, 7.2 x 2.5mm
C21u1uElectrolytic capacitor, 5mm
C3470n470nFilm capacitor, 7.2 x 5.0mm
C43n33.3nFilm capacitor, 7.2 x 2.5mm
C510n10nFilm capacitor, 7.2 x 2.5mm
C622n22nFilm capacitor, 7.2 x 2.5mm
C722n22nFilm capacitor, 7.2 x 2.5mm
C81u1uElectrolytic capacitor, 5mm
C100100u100uElectrolytic capacitor, 5mm
C101100u100uElectrolytic capacitor, 5mm
Diodes 1
D1001N58171N5817Schottky diode, DO-41
ICs 1
IC1TL082TL082Dual op-amp, DIP8
Potentiometers 5
LEVELA100KA100k16mm right-angle PCB mount pot
GAINB100KB100k16mm right-angle PCB mount pot
TREBLEB100KB100k16mm right-angle PCB mount pot
MIDB100KB100k16mm right-angle PCB mount pot
BASSB100KB100k16mm right-angle PCB mount pot