May Boost PCB - Build your own Fryer Treble Boost pedal!

May Boost is based on the Fryer Treble Boost, a hallmark of Brian May’s Queen tone. Run it hard into a Vox AC30 amp’s normal channel, and you’re on your way to ‘Bohemian Rhapsody ‘ territory. The circuit itself is adapted from the Rangemaster, and offers about 30dB of volume boost.

Since this boost is largely meant to run at full (or near full) volume, the board is designed with a trimpot control, allowing you to ’set-and-forget’ the amount of boost after tweaking it to sound just right with your own amp. Alternatively, you can wire it with an external volume pot if you wish.

Download build guide here:
ontheroadeffects.com/buildguides/MayBoost_v2.0_BuildGuide.pdf

ALL OTRFX BUILD GUIDES AVAILABLE ON OUR WEBSITE HERE:
ontheroadeffects.com/pcbs

OTRFX PCB's are designed with the intermediate DIY pedal builder in mind. If you have never built a pedal before, you may want to start with a full kit designed with new pedal builders in mind. Listing is for PCB & build guide PDF only.

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ConditionBrand New (New)
Brand New items are sold by an authorized dealer or original builder and include all original packaging.Learn more
Brand
Model
  • May Boost
Finish
  • Blue
Categories
Year
  • 2026
Made In
  • United States

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On The Road Effects

Seekonk, MA, United States
Joined Reverb:2017

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