From Dwarfcraft:
A smaller, streamlined enclosure and control interface for a slick modern exterior, with germanium diodes and NOS Fairchild 2n5133 transistors for a vintage Muff vibe.
The pedal includes the modifications most often requested by touring musicians: a smaller enclosure, top mounted jacks, and no feedback circuit. As always, the Timewarp toggle controls a clipping diode and the Toneblast switch bypasses the Tone control for more volume and a fuller frequency response. The use of NOS transistors also decreased the gain, making this version of the circuit warmer, a little more “wooly,” and somewhat more versatile than the balls-out OG Thunder.