Hi Harry, Maybe Mike Irwin's phaser. http://www5b.biglobe.ne.jp/~houshu/synth/mike_irwin/cmos-vcr.gif Sam HOSHUYAMA Saitama JAPAN Harry Bissell wrote: > Does anyone remember which unit used this. I think it might have been > part of a Korg or Roland synth or effect ... > > tia > > H^) harry