Akashic Guitar effects PCB lookup
GAINVOLTONE

125B · 3 knobs

PCB Guitar Mania

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

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RefValueNormalizedTypeNotes
Resistors 5
R12K72.7k
R3820r820
R41m1M
R5200k200k
R7100k100k
Capacitors 15
C147n47n
C247n47n
C347n47n
C447n47n
C547n47n
C647n47n
C71n1n
C847n47n
C1047n47n
C11100n100n
C12100n100n
C13100n100n
C1647n47n
C9220uf220u
C181uf1u
Diodes 9
D11N41481N4148
D21N41481N4148
D31N41481N4148
D41N41481N4148
D51N41481N4148
D61N41481N4148
D71N41481N4148
D91n40011N4001
D101n40011N4001
ICs 2
IC140106N40106N
IC2uA7806UA7806
Potentiometers 3
GAIN50KBB50kPotentiometer
VOL100KAA100kPotentiometer
TONE100KBB100kPotentiometer
LEDs 1
R8LEDLED