“The Thermionic Effects TE.01
tube overdrive distortion pedal. It is custom made in
Washington State. Features include: Dual gain stages, rugged die-cast
polished aluminum enclosure, true bypass switching, hand wired — point-to-point
circuitry, grounded power cable, in-line fuse and power switch. It uses one 12ax7 pre-amp tube running at high voltage for real — tube amp like distortion.”
More information on this effect can be found here.