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GAINTONE

125B · 2 knobs

PCB Guitar Mania

Corpulent Bee

Based on the Beetronics Fat BEE· 1 other board clones it

Category
Overdrive· Fat overdrive
Controls
Gain · Tone
Difficulty
Intermediate
Price
€9.90out of stock

Heads up Builders widely report inconsistent quality from PCB Guitar Mania boards, and whether a given board works is a gamble. Read recent forum reports before ordering.

From the vendor

Project overview

Inspired by Beetronics FatBEE, a fat overdrive circuit created in collaboration with the mythical pedal designer Howard Davis. Become the beekeeper of the fattest and sweetest buzzing overdrive sounds!

Introduction

Corpulent Bee mix the typical JFET overdrive natural and amp-like sounding with the fat and gurgling sounds of Beetronics pedals. The result is those unique sweet, smooth waves that you are going to love.

The basic tone is nearly transparent, except for a tender softening of the top end and a throaty thickening of the lower mids. Towards maximum gain, the drive doesn’t get that fuzzy but instead grows in warm, sweet, and stickiness, with very little ‘air’ but plenty of midrange bark to let choppy power chords cut through.

The tone knob acts essentially like an amp’s presence control, varying from extra spiky at the top of its range to smooth near the bottom.

Harvest the best tones with this buzzing board and get its unique, tasty sounds!

Controls

• Gain

• Tone

• Volume

For any technical questions regarding this build don’t forget to check out our Facebook Group and our forum at Free Stomp Boxes.

Corpulent Bee – Building Docs

Corpulent Bee – Drilling template

Schematic

The schematic is in the vendor's build document, page 5. Open the build document. No KiCad fragment has been drawn for this circuit yet.

Parts list 50 rows

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RefValueNormalizedTypeNotes
Resistors 24
R110M10M
R2390K390k
R34K74.7k
R410M10M
R512K12k
R62K62.6k
R751K51k
R827K27k
R956K56k
R1010M10M
R1112K12k
R1227K27k
R131K81.8k
R14560R560
R151M1M
R1610K10k
R173K33.3k
R1810K10k
R1947k47k
R202K22.2k
R2110M10M
R224K74.7k
R2310K10k
R2410K10k
Capacitors 16
C422u22u
C622u22u
C15470u470u
C1610u10u
C122n22n
C256p56p
C31u1u
C51u1u
C71n51.5n
C81u1u
C933n33n
C102n22.2n
C11220p220p
C1215n15n
C13100n100n
C14100n100n
Diodes 1
D21N58171N5817
Transistors 3
Q1J113J113
Q2J113J113
Q32N50882N5088
ICs 2
IC1TL072TL072
IC2TL072TL072
Potentiometers 2
GAINA1MA1MPotentiometer
TONEB100KB100kPotentiometer
LEDs 1
D1LEDSTATUS-LEDSTATUS-
Jacks & sockets 1
J113Q1Q1

Other boards based on the Beetronics Fat BEE