125B · 3 knobs
Valve One
Based on the BoobTube circuit including an
- Category
- Overdrive· Tube Overdrive
- Controls
- Gain · Vol · Tone
- Difficulty
- Intermediate
- Price
- €9.90out of stock
- Tags
- tube
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 Valvedriver is especially for those who want to experiment for the first time with tubes without exposing themselves to voltages up to 400v.
Based on the BoobTube circuit with an internal voltage multiplier.
Introduction
Tube Overdrive
Especially to give the tube flavor to your set.
• Ready to be wired as True Bypass.
• Pedalboard-friendly runs on 9v.
• Internal Voltage Multiplier
• Tight design to fit in a 125B Enclosure.
Difficulty level: Intermediate.
Amount of parts: Moderate
Availability of components: Average. All the components are pretty easy to get.
Featuring:
• Designed to use onboard potentiometers. Keep it tidy without using cables!
• Compact format fits perfectly in a 125B enclosure
• Versatile Project, allows you to build a clean tube version, as well as the overdrive one.
• Internal voltage multiplier
• Pedalboard-friendly runs on 9v.
Controls
• Tone: high-cut filter.
• Volume: controls the output volume.
• Gain: set the Gain at your preference.
For any technical questions regarding this build don’t forget to check out our Facebook Group and our forum at Free Stomp Boxes.
Valve One – Building Docs
Valve One – Drilling template
Schematic
The schematic is in the vendor's build document, page 8. Open the build document. No KiCad fragment has been drawn for this circuit yet.
Parts list 35 rows
Report a wrong parse| Ref | Value | Normalized | Type | Notes |
|---|---|---|---|---|
| Resistors 5 | ||||
| R1 | 2K7 | 2.7k | ||
| R3 | 820r | 820 | ||
| R4 | 1m | 1M | ||
| R5 | 200k | 200k | ||
| R7 | 100k | 100k | ||
| Capacitors 15 | ||||
| C1 | 47n | 47n | ||
| C2 | 47n | 47n | ||
| C3 | 47n | 47n | ||
| C4 | 47n | 47n | ||
| C5 | 47n | 47n | ||
| C6 | 47n | 47n | ||
| C7 | 1n | 1n | ||
| C8 | 47n | 47n | ||
| C10 | 47n | 47n | ||
| C11 | 100n | 100n | ||
| C12 | 100n | 100n | ||
| C13 | 100n | 100n | ||
| C16 | 47n | 47n | ||
| C9 | 220uf | 220u | ||
| C18 | 1uf | 1u | ||
| Diodes 9 | ||||
| D1 | 1N4148 | 1N4148 | ||
| D2 | 1N4148 | 1N4148 | ||
| D3 | 1N4148 | 1N4148 | ||
| D4 | 1N4148 | 1N4148 | ||
| D5 | 1N4148 | 1N4148 | ||
| D6 | 1N4148 | 1N4148 | ||
| D7 | 1N4148 | 1N4148 | ||
| D9 | 1n4001 | 1N4001 | ||
| D10 | 1n4001 | 1N4001 | ||
| ICs 2 | ||||
| IC1 | 40106N | 40106N | ||
| IC2 | uA7806 | UA7806 | ||
| Potentiometers 3 | ||||
| GAIN | 50KB | B50k | Potentiometer | |
| VOL | 100KA | A100k | Potentiometer | |
| TONE | 100KB | B100k | Potentiometer | |
| LEDs 1 | ||||
| R8 | LED | LED | ||