Geargas Effect Pedals and Custom BYOC Pedal Builds
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Geargas Custom Shop Thermionic Distortion Pedal

Geargasstore Custom Shop

Geargas Custom Shop Thermionic Distortion Pedal


The Thermionic Distortion provides searing British-flavored high gain tones through any amp.
Pedalboard friendly design, 125B footprint with top-mounted jacks.

Bass – Controls the bass frequencies
Treble – Controls the treble frequencies
Presence – Controls the upper mid-range frequencies
Volume – Controls the output volume
Gain – Controls the amount of gain
Tight – Controls the pre-gain low end frequencies

This version is assembled and tested by hand in our shop from a pedalpcb thermionic distortion board.


  • True bypass
  • 9v adapter power only (not included)
  • Controls for Bass, Treble, Presence, Volume, Gain and Tight.

We warranty our pedals for 5 years.

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