Here's our RIPD Honker Overdrive. Another light overdrive with our Honker design. This one is based around the OPA2134 and JFTET-BAT41 clipping from the Vertex UltraPhonix design.
It's known to "simulate" the classic Dumble sound. Simple controls with Volume, Gain and Filter. Mounted in a 125B enclosure.
Demo of the prototype :