125B · 5 knobs
Twin Tweed 57
Based on the Fender Twin Tweed amp
- Category
- Overdrive· Pre amp Emulator
- Controls
- Bass · Gain · Presence · Treble · Volume
- Difficulty
- Average
- 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
The Twin Tweed 57 emulates part of a series of preamps in a box, emulating the tone of some of the most iconic amplifiers.
For this occasion, we have not only the preamp section, but we have also included the tone stack and the power section of this all-time classic.
Introduction
Not just a good preamp. It’s probably THE Fender Tweed 57 you hearing in your head when you are thinking about sparkling clean sounds, and what can I say… Here is a Bajaman creation that gives you the most accurate emulation of this legendary tone in a small footprint. After all his designs, I have high expectations in his schematics, and what can I say… He nailed that one!
Because the EQ is a massive part of the overall tone, it’s included in the pcb.
Side note 2.5nf are pretty hard to source. You can use a 2.7nf and still have more than just decent-sounding emulation of the amp, and it works best in the return of an FX loop. But I still had great results to shape a clean channel when used in front of my amps.
Controls
• Gain
• Presence
• Bass
• Treble
• Volume
• Bright switch
For any technical questions regarding this build don’t forget to check out our Facebook Group and our forum at Free Stomp Boxes.
Tweed Twin 57 – Building Docs
Twin Tweed 57 – Drilling Templates
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 25 | ||||
| R1 | 1M5 | 1.5M | ||
| R2 | 1M | 1M | ||
| R3 | 100K | 100k | ||
| R4 | 1M | 1M | ||
| R5 | 1K5 | 1.5k | ||
| R6 | 2K7 | 2.7k | ||
| R7 | 1K5 | 1.5k | ||
| R8 | 3K3 | 3.3k | ||
| R9 | 2K2 | 2.2k | ||
| R10 | 390r | 390 | ||
| R11 | 2K7 | 2.7k | ||
| R12 | 2K2 | 2.2k | ||
| R13 | 22k | 22k | ||
| R14 | 22k | 22k | ||
| R15 | 22k | 22k | ||
| R16 | 47K | 47k | ||
| R17 | 2K2 | 2.2k | ||
| R18 | 22K | 22k | ||
| R19 | 2K2 | 2.2k | ||
| R20 | 100k | 100k | ||
| R21 | 6K8 | 6.8k | ||
| R22 | 1M | 1M | ||
| R23 | 1K | 1k | ||
| R24 | 10K | 10k | ||
| R25 | 10K | 10k | ||
| Capacitors 17 | ||||
| C1 | 1u | 1u | ||
| C2 | 100n | 100n | ||
| C3 | 390p | 390p | ||
| C5 | 220n | 220n | ||
| C6 | 1n | 1n | ||
| C7 | 1n8 | 1.8n | ||
| C8 | 2n5 | 2.5n | ||
| C9 | 470p | 470p | ||
| C10 | 47n | 47n | ||
| C11 | 1u | 1u | ||
| C12 | 100n | 100n | ||
| C13 | 12n | 12n | ||
| C14 | 1u | 1u | ||
| C15 | 1u | 1u | ||
| C16 | 1u | 1u | ||
| C4 | 10u | 10u | ||
| C17 | 1u | 1u | ||
| Diodes 4 | ||||
| D0 | 1N5817 | 1N5817 | ||
| D1 | 1N4148 | 1N4148 | ||
| D2 | 1N4148 | 1N4148 | ||
| D3 | 1N4148 | 1N4148 | ||
| Transistors 1 | ||||
| Q1 | J201 | J201 | ||
| ICs 2 | ||||
| IC2 | TL062 | TL062 | ||
| IC3 | TL062 | TL062 | ||
| Potentiometers 5 | ||||
| BASS | B50K | B50k | Potentiometer | |
| GAIN | B100K | B100k | Potentiometer | |
| PRESENCE | B10K | B10k | Potentiometer | |
| TREBLE | B10K | B10k | Potentiometer | |
| VOLUME | B100K | B100k | Potentiometer | |
| Jacks & sockets 1 | ||||
| J201 | Q1 | Q1 | ||