Akashic Guitar effects PCB lookup
VOLMID

1590BB · 2 knobs

PCB Guitar Mania

Wolfgang 5051

Based on the Peavey EVH 5150

Category
Distortion· High Gain Preamp
Controls
Vol · Mid
Difficulty
Intermediate/Advanced
Price
€11.90out of stock
Tags
diy-originals

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

Six gain stages preamp with a lot of attenuation and select filtering between each stage to get the desired frequency and phase response characteristics of the original Peavey EVH 5150 head preamp section. Features a 3 band tone stack with an additional gain recovery stage.

Even if this PCB is pedal-friendly, this beast shines the best as a Preamp on the FX loop due to the immense amount of output.

Introduction

Wolfgang is based on the signature Amp one of the most influencing guitar players of all time and most likely the reason for many of you to start playing guitar! I mean, you read the name and have the riffs in your head, aren’t you? But some of you may still not be 100% sure who we are talking about? Okay, I stop to rave about this guitar genius with the black and white strips running all over his red axes and come back to the topic.

For this pedal, we went back to the roots and stick with the Tube preamp’s original Schematic preamp, modeling it to make a useful Distortion for the old fans, the modern players, and most importantly, for the DIY builders.

The board allows using either T0-92 or SMD Footprint. We also added a 3-Band EQ in the newest vertions to tame this angry beast for your needs and pressed all this insane amount of Gain and Volume this build offers in a 1590BB enclosure. This is not a beginner project but a rewarding one.

This beast has an insanely loud output, so remember, you can achieve great results with this pedal in your board but is on the FX loops where this beast shines.

Controls

• High

• Vol

• Low

• Mid

• Gain

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

Wolfgang 5051 1v1 – Building Docs (28th February 2023)

Wolfgang 5051 1v0 – Building Docs (25th October 2021)

Wolfgang 5051 – 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 85 rows

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RefValueNormalizedTypeNotes
Resistors 44
R3747k47k
R3847k47k
R11m1M
R391m1M
R21m1M
R404k74.7k
R310k10k
R411k1k
R41m1M
R421M1M
R568k68k
R4310k10k
R68k28.2kor 7k5*
R4410k10k
R71k1k
R81k81.8k
R947k47k
R10100k100k
R1147k47k
R12100k100k
R132k72.7kor 30k*
R141k51.5k
R152k22.2k
R1647k47k
R17100k100k
R182k72.7kor 4k5*
R192k72.7k
R2033k33k
R2122k22k
R222k72.7kor 6k2*
R231k81.8k
R241k1k
R252k22.2k
R26100k100kor 91k**
R2710k10k
R2818k18kor 13k*
R291k51.5k
R302k22.2k
R31100k100k
R32100k100k
R332k72.7kor 1k8*
R342k72.7k
R351m1M
R3610k10k
Capacitors 29
C2522n22n
C2622n22n
C271u1u
C281u1u
C29220uf220u
C11u1u
C21u1u
C3150pf150p
C4680n680n
C5220n220n
C622n22n
C710n10n
C8220pf220p
C918n18n
C10680n680n
C11220n220n
C1247pf47p
C13220n220n
C1410n10n
C155n65.6n
C165n65.6n
C17680n680n
C18220n220n
C191n1n
C20180pf180p
C21220n220n
C221u1u
C231u1u
C24560pf560p
Diodes 3
D13mm3MM
D25mm5MM
D31N58171N5817
Transistors 2
Q1J201J201
Q2J201J201
ICs 4
IC1TL062TL062
IC2TL062TL062
IC3TL062TL062
IC4TL062TL062
Potentiometers 2
VOL100KAA100kPotentiometer
MID50KBB50kPotentiometer
Jacks & sockets 1
J201Q1Q1