Akashic Guitar effects circuit lookup
GAINTREBLEVOLUMEBASSCUT

125B · 4 knobs

RWL Pedals

Bonaparte's Gull Preamp

Based on the Benson Preamp· 7 other boards clone it

Category
Preamp / Amp-in-a-box
Controls
Gain · Treble · Volume · Basscut
Price
see vendor
Tags
Dylan159
Get the gerbers at RWL Pedals SchematicGerbersInteractive BOMBonson's Praemp thread at freestompboxes

From the vendor

A layout of Bent Fishbowl's Bonson's Praemp (based on Benson's Preamp). The Bonaparte's Gull Preamp is a PCB based on Dylan159's Bonson Praemp (not a typo), which is based on the Benson Preamp.

Schematic

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

Parts list 33 rows

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RefValueNormalizedTypeNotes
Resistors 12
R21K1kinteractive BOM
R61K1kinteractive BOM
R91K1kinteractive BOM
R510K10kinteractive BOM
R810K10kinteractive BOM
R1010K10kinteractive BOM
R4100K100kinteractive BOM
R7100K100kinteractive BOM
R11M1Minteractive BOM
R312K12kinteractive BOM
R1004K74.7kinteractive BOM
R10147R47interactive BOM
Capacitors 10
C1100N100ninteractive BOM
C2100N100ninteractive BOM
C510U10uinteractive BOM
C810U10uinteractive BOM
C622N22ninteractive BOM
C722N22ninteractive BOM
C33N33.3ninteractive BOM
C42N22.2ninteractive BOM
C94N74.7ninteractive BOM
C101100U100uinteractive BOM
Diodes 1
D1011N58171N5817interactive BOM
Transistors 3
Q1J201J201interactive BOM
Q2J201J201interactive BOM
Q3J201J201interactive BOM
Potentiometers 4
GainA100KA100kinteractive BOM
TrebleA100KA100kinteractive BOM
VolumeA100KA100kinteractive BOM
BasscutA250KA250kinteractive BOM
Trimmers 2
TRIM150K50kinteractive BOM
TRIM250K50kinteractive BOM
LEDs 1
D100LEDLEDinteractive BOM

Other boards based on the Benson Preamp