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GAINTONEVOLVOICE

125B · 4 knobs

GuitarPCB

NostalgiTone Dumbletone Single: Powerful Guitar Tone

Category
Utility
Controls
Gain · Tone · Vol · Voice
Price
see vendorin stock

From the vendor

Introductory Offer: Matching Plate + PCB — $11.95In stock and ready to ship — no wait.

Plate fits 125B enclosure

Description

Now available with a matching PCB control plate (fits 125B size enclosure) for a clean, professional build. These pre-drilled plates are precision-aligned to the PCB layout, serve as excellent drill guides, and align with build documentation templates and Tayda pre-drilled enclosures for accurate, hassle-free assembly.

These are fabricated from durable 1.0mm PCB material, providing a rigid, substantial feel ideal for clean, professional builds.

These PCB plates are available for international orders, unlike our aluminum panel options. Plate color matches the product image.

Dumbletone: To achieve authentic Dumble style tones, you need a preamp that is clear, transparent, and punchy, and nothing does this better than the Dumbletone Single. Based on the Hermida Zendrive it includes four knobs to control Volume, Gain, Tone, and Voicing, and offers light overdrive at lower settings reminiscent of tube amps at the “sweet spot.” Higher settings boost gain and sustain for rich overdrive.

Achieve tones inspired by legends like Robben Ford, Larry Carlton, Eric Johnson, Gary Clark Jr., Brad Paisley, and more.

• Easy Wiring: No more daunting wiring hassles! Say hello to beauty under the hood. Enjoy all-analog tones with modern features that will slip into your gig bag, ensuring you are always ready to unleash your musical magic.

• Available Components: We recognize the hurdles of component availability. Rest assured, we’ve carefully selected components for the NostalgiTone series currently available from today’s popular vendors.

Mainboard Dimensions – 2.10” x 2.12” – Perfectly sized for a 1590B or 125B enclosures.

Included with each PCB purchase. – (1) Mainboard, (1) wiring board, and (1) ribbon cable.

NostalgiTone Dumbletone Build Document

Order a drilled enclosure from Tayda (registration required)

Complimentary Art 1590B size but can be used for 125B as well.

• 1590B size – Drilled Enclosure Link

• 125B size (slightly larger) – Drilled Enclosure Link0

Courtesy Artwork PDF suitable for Tayda UV.

Courtesy Artwork PNG suitable for Decals.

Courtesy Artwork SVG suitable for Editing.

Dumbletone accessories available in the SHOP: (1) TL072, (2) 1N4148, (1) 1N5817

Schematic

The schematic is in the vendor's build document, page 2. Open the build document. No KiCad fragment has been drawn for this circuit yet.

Parts list 25 rows

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RefValueNormalizedTypeNotes
Resistors 8
R12M22.2MOCR
R2470k470kOCR
R31k1kOCR
R41k1kOCR
R510k10kOCR
R61k1kOCR
R710k10kOCR
R810k10kOCR
Capacitors 7
C1470n470nOCR
C2100pF100pOCR
C3100n100nOCR
C43n33.3nOCR
C5470n470nOCR
C6100uF100uOCR
C7100n100nOCR
Diodes 3
D11N41481N4148OCR
D21N41481N4148OCR
D41N58171N5817OCR
Transistors 2
Q12N70002N7000OCR
Q22N70002N7000OCR
ICs 1
IC1TL072TL072OCR
Potentiometers 4
GAINB500KB500kPotentiometerOCR
TONEB50KB50kPotentiometerOCR
VOLA100KA100kPotentiometerOCR
VOICEB10KB10kPotentiometerOCR