via this auction"Here is a description from the Squarewave Parade website:
'yet another silly name. this is a stereo ( dual mono ) analog passive ring ( or "balanced" ) modulator that is also capable of producing an octave up if only one input is used (achieved via internal switching - there are no other controls). unlike most ring modulators you will find this one does not come with a built in oscillator. this is done on purpose to give you the chance to use your own modulator and as a result it gives you a much wider range of possibilities. everything from AM radio static to tempo matched drum loops can be used to modulate your source. use of line level instruments like synths, mixers, and sound cards would be ideal. being a passive design ( meaning it does not require any power source to operate ) you will need to increase the level of quieter signals, such as guitar, to get the ring to work. you can do this by adding a pre-amp, booster, distortion pedal, channel of a mixer, etc... before that input. you may also want to boost the output depending on your intentions. its made with hand matched germanium diodes for minimal signal bleed which i also matched between each of the two units inside. the transformers on the input and output will also yield a nice thick organic distortion when over-driven.'"
