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125B · 1 knobs

PCB Guitar Mania

Mesa DR.

Based on the Mesa Boogie Dual Rectifier

Category
Distortion· High Gain pre-amp
Controls
Gain
Difficulty
Average
Price
€9.90out 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

This circuit has been designed by Bajaman from Free stompboxes, recreating the tonal response of the classic Mesa Dual rectifier. High gain, Metal Tones, and chugga chugga! We have included ‘Return’ and ‘Send’ pads so you can hook up any EQ section you want from our EQ development series.

Introduction

The doctor is here to cure you with the chugga chugga you are looking for. This Bajaman circuit is created to give you the most accurate pedal emulation of the Mesa Boogie Dual Rectifier ever captured in a Pedal, and dam it does it more than well!

But you might not like the EQ on your amp and think, I want more than just Gain and Volume no matter how well it emulates the Amp. No worries, we added EQ send and return wire pads (that need to be jumper if you do not use them) in the perfect spot and also offer plenty EQ boards so you can get the best results for your ears. I personally love that circuit in combination with the Falcon EQ.

You can check more info about other EQS here

Controls

• Gain

• Volume

• EQ SND

• EQ return

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

Mesa Dr. – Building Docs

Mesa Dr. – Drilling template

Schematic

The schematic is in the vendor's build document, page 6. Open the build document. No KiCad fragment has been drawn for this circuit yet.

Parts list 55 rows

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RefValueNormalizedTypeNotes
Resistors 26
R11M51.5M
R21M1M
R310K10k
R41M1M
R58K28.2k
R61K21.2k
R71K1k
R868K68k
R947K47k
R102K72.7k
R111K21.2k
R121K1k
R1322K22k
R1410K10k
R152K72.7k
R161K1k
R1733K33k
R1822K22k
R192K72.7k
R203K33.3k
R213K93.9k
R222K22.2k
R231M1M
R2410K10k
R2510K10k
R2610K10k
Capacitors 20
C11u1u
C21u1u
C31u1u
C41u1u
C522n22n
C610n10n
C822n22n
C91u1u
C101u1u
C113n93.9n
C1233n33n
C131u1u
C1510n10n
C161u1u
C171u1u
C181u1u
C191u1u
C20180p180p
C21390p390p
C22220u220u
Diodes 3
D11n41481N4148
D21N58171N5817
D33mm3MM
Transistors 3
Q1J201J201
Q2J201J201
Q3BC547BBC547B
ICs 1
IC1TL074TL074
Potentiometers 1
GAINB100KB100kPotentiometer
Jacks & sockets 1
J201Q1Q1