125B · 1 knobs
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
Report a wrong parse| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 26 | ||||
| R1 | 1M5 | 1.5M | ||
| R2 | 1M | 1M | ||
| R3 | 10K | 10k | ||
| R4 | 1M | 1M | ||
| R5 | 8K2 | 8.2k | ||
| R6 | 1K2 | 1.2k | ||
| R7 | 1K | 1k | ||
| R8 | 68K | 68k | ||
| R9 | 47K | 47k | ||
| R10 | 2K7 | 2.7k | ||
| R11 | 1K2 | 1.2k | ||
| R12 | 1K | 1k | ||
| R13 | 22K | 22k | ||
| R14 | 10K | 10k | ||
| R15 | 2K7 | 2.7k | ||
| R16 | 1K | 1k | ||
| R17 | 33K | 33k | ||
| R18 | 22K | 22k | ||
| R19 | 2K7 | 2.7k | ||
| R20 | 3K3 | 3.3k | ||
| R21 | 3K9 | 3.9k | ||
| R22 | 2K2 | 2.2k | ||
| R23 | 1M | 1M | ||
| R24 | 10K | 10k | ||
| R25 | 10K | 10k | ||
| R26 | 10K | 10k | ||
| Capacitors 20 | ||||
| C1 | 1u | 1u | ||
| C2 | 1u | 1u | ||
| C3 | 1u | 1u | ||
| C4 | 1u | 1u | ||
| C5 | 22n | 22n | ||
| C6 | 10n | 10n | ||
| C8 | 22n | 22n | ||
| C9 | 1u | 1u | ||
| C10 | 1u | 1u | ||
| C11 | 3n9 | 3.9n | ||
| C12 | 33n | 33n | ||
| C13 | 1u | 1u | ||
| C15 | 10n | 10n | ||
| C16 | 1u | 1u | ||
| C17 | 1u | 1u | ||
| C18 | 1u | 1u | ||
| C19 | 1u | 1u | ||
| C20 | 180p | 180p | ||
| C21 | 390p | 390p | ||
| C22 | 220u | 220u | ||
| Diodes 3 | ||||
| D1 | 1n4148 | 1N4148 | ||
| D2 | 1N5817 | 1N5817 | ||
| D3 | 3mm | 3MM | ||
| Transistors 3 | ||||
| Q1 | J201 | J201 | ||
| Q2 | J201 | J201 | ||
| Q3 | BC547B | BC547B | ||
| ICs 1 | ||||
| IC1 | TL074 | TL074 | ||
| Potentiometers 1 | ||||
| GAIN | B100K | B100k | Potentiometer | |
| Jacks & sockets 1 | ||||
| J201 | Q1 | Q1 | ||