I Was Born On Planet Fuzz, Planet Fuzz

I like to record guitars and stuff with as little distortion as possible. It reduces the possibility to play around with the sound later on. To get the distortionchains to blend in with the music, I always record them through a speaker. Often with distant mics. Here is a pic of one of my smaller distortionunits. I've heard that it is rare, but I don't know much about it. It gives a light distortionsound, and I used it in a buschain or two. Does anybody know anything about it?