I love a good rat, so had to offer up my version of it. Tweaked to have smoother gain with less peaky treble and a bit more bottom end chunk. Still tears it up like a good rat with tons of gain. Vintage metal can LM308 chip for mojo. All crammed into a tiny 1590A enclosure. True bypass with polarity protection, like all my mini pedals runs off 9v adapter only (center negative 2.1mm). Current draw ~3mA.