The New Electrochop from Magnetic Effects is designed to give your guitar sound a really retro echo-esque tremolo. The sound gets imitated with oscillators and can either create a driving rhythmic pulse to the song, or phase through it like a Steve Reich Piece. It is a super choppy tremolo that features the classic, unique LFO section from the Vox Repeat Percussion. A new audio circuit has been designed around the LFO, resulting in a tremolo that sounds like the Repeat Percussion but with a fuller, louder sound and more controls.
Check out this demo.