Blythe Engineering

Blythe Engineering

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Boutique Tube Amplifiers! Tube Amplifier Repair and Mods!! Please follow Blythe Engineering

Photos from Blythe Engineering's post 05/01/2026

MANDATUM – Precision Tone. Pure Authority.

The Mandatum is a premium clean boost designed to elevate your tone without compromise. From pristine transparency to rich, smooth overdrive, it delivers a wide range of musical textures while preserving the natural character of your guitar and amp.

Internally powered at 18 volts via a charge pump (with a standard 9V input), the Mandatum offers exceptional headroom, clarity, and dynamic response. Whether you’re pushing your amp into natural breakup or tightening your signal for articulate lead work, it responds with precision and control.

Simple, intuitive controls keep you focused on playing:

* Gain shapes everything from subtle enhancement to warm overdrive
* Level delivers powerful output control to drive your signal exactly where you need it

The Mandatum’s dual toggle system expands its versatility:

* Boost Switch (3-way)
Center: Off
Down: Single-stage boost for clarity and punch
Up: Dual-stage boost for increased saturation and sustain
* Cleanse Switch (3-way)
Center: Off
Down: Smooth EQ shaping for balanced tone
Up: Enhanced smoothing for a more refined, polished response

The result is a pedal that feels as natural as it sounds—responsive, musical, and inspiring at every setting.

Clean. Driven. Refined. Command your tone with Mandatum.

04/24/2026

The Martyr was a one off that included a type one Saturation circuit. Depending on the model, amps that include the Saturation circuit are one of 3 types.

Type 1: A single pot controlled Saturation

Type 2: A single pot with an additional high and low switch that caters to either an upper frequency saturation or a bottom heavy saturation

Type 3: A combination of both Type 1 and 2 with an additional dual/single switch that doubles the circuitry and affects two separate gain stages

03/26/2026

Bless this mess.

03/18/2026

Dumble? Yes! I’ve never had much interest in Dumble circuits. After years of passing up requests for a Dumble style build, I thought I’d study some Dumble topology and adopt some elements into a new design. Here is the beginning phase of that engineering.

Photos from Blythe Engineering's post 03/11/2026

Here's that for ya!
Psalm
Everything from the chassis to the brackets, all hand made.

-20 Watt 6v6 all tube amplifier.
-Custom Reverb with Dwell, Tone and Level (foot switchable)
-Tube Tremolo with Speed and Intensity (foot switchable)
-Bass, Mid, Treble Tone Stack
-Eminence GA-SC64 Alesandro Signature 12-inch Speaker

Innovative Structure:
-Blythe Engineering Original Circuit; Saturation Variable Control with switchable Dual/Single and switchable Hi/Lo frequency
-Blythe Engineering Original Circuit; LMV (Linear Master Volume)
-3 way voice toggle (center off); Gain Boost, Bright Gain Boost

-Tube Driven FX Loop
-Dual Bias Adjustment

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Antioch Road
West Chester, OH
47040