125B · 2 knobs
Soldado Preamp
Based on the Soldano SLO 100
- Category
- Distortion· High gain Overdrive
- Controls
- Gain · Level
- 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
Based on the frequency response of the Soldano Slo 100. Part of the series ‘Develop your own Preamp’ where you can combine preamp sections of iconic amplifiers with different types of EQs in order to create your own custom boutique pedal. More information about the EQ sections here.
Introduction
Finally! My all-time favorite amp the Super Lead Overdrive got captured in a box without sacrificing the sound. So many really disappointing versions out there… None of them nailed it, till now!
You may wonder what it took to make this possible? Well… there is this legend from Freestompboxes called Bajaman and he worked on the circuit till his design matched the exact frequency response of the actually amp. Meaning this is not just a Jfet version of Preamp that gets you somehow… eventually close to it. IT IS the tone you are looking for! So how do I know that, did I compare it to one of these super rare amps? Yes, because I actually own a Soldano SLO 100 that never leaves my house and it only took me one strum to hear that the search is over. From classic Rock to pushing mid pronounced metal tones that cut through. If you are looking for that SLO sound. I promise you will not be disappointed.
Controls
• Volume
• Gain
Demo
[media]https://www.instagram.com/p/CO0ybcjAHTD/?utm_source=ig_web_copy_link[/media]
For further analysis on this circuit take a look at this thread on DIY Stomp Boxes Forum and Free Stomp Boxes Forum.
For any technical questions regarding this build don’t forget to check out our Facebook Group and our forum at Free Stomp Boxes.
Soldado Preamp 1v1 – Building Docs
Soldado Preamp 1v0 – Building Docs
Soldado Preamp – 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 54 rows
Report a wrong parse| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 26 | ||||
| R1 | 1M5 | 1.5M | ||
| R2 | 1M | 1M | ||
| R3 | 10K | 10k | ||
| R4 | 100K | 100k | ||
| R5 | 6K8 | 6.8k | ||
| R6 | 1K5 | 1.5k | ||
| R7 | 1K | 1k | ||
| R8 | 8K2 | 8.2k | ||
| R9 | 100K | 100k | ||
| R10 | 100K | 100k | ||
| R11 | 1K | 1k | ||
| R12 | 1K | 1k | ||
| R13 | 2K7 | 2.7k | ||
| R14 | 47K | 47k | ||
| R15 | 100K | 100k | ||
| R16 | 2K7 | 2.7k | ||
| R17 | 1K | 1k | ||
| R18 | 22K | 22k | ||
| R19 | 2K7 | 2.7k | ||
| R20 | 1K | 1k | ||
| R21 | 2k2 | 2.2k | ||
| R22 | 1M | 1M | ||
| R23 | 10K | 10k | ||
| R24 | 1K | 1k | ||
| R25 | 10K | 10k | ||
| R26 | 10K | 10k | ||
| Capacitors 18 | ||||
| C1 | 1u | 1u | ||
| C2 | 1u | 1u | ||
| C3 | 120p | 120p | ||
| C4 | 1u | 1u | ||
| C7 | 10n | 10n | ||
| C8 | 2n2 | 2.2n | ||
| C9 | 560p | 560p | ||
| C10 | 1u | 1u | ||
| C11 | 1u | 1u | ||
| C12 | 560p | 560p | ||
| C13 | 33n | 33n | ||
| C14 | 220n | 220n | ||
| C15 | 330p | 330p | ||
| C16 | 10n | 10n | ||
| C17 | 1u | 1u | ||
| C18 | 1u | 1u | ||
| C19 | 1u | 1u | ||
| C20 | 220u | 220u | ||
| Diodes 3 | ||||
| D1 | 1N5817 | 1N5817 | ||
| D2 | 3mm | 3MM | ||
| D3 | 1N4148 | 1N4148 | ||
| Transistors 3 | ||||
| Q1 | J201 | J201 | ||
| Q2 | J201 | J201 | ||
| Q3 | BC547B | BC547B | ||
| ICs 1 | ||||
| IC1 | TL064 | TL064 | ||
| Potentiometers 2 | ||||
| GAIN | 100KB | B100k | Potentiometer | |
| LEVEL | 100KB | B100k | Potentiometer | |
| Jacks & sockets 1 | ||||
| J201 | Q1 | Q1 | ||