>I would recommend using a different >noise circuit, as the MM5837 noise has (for me...) a very apparent >repetitive nature, due to an internal shift register which is not long enough. Only 17 bits. If you're going to build one from discrete logic you might as well go for 32. This was in Electronotes. Terry Bowman, KA4HJH "The Mac Doctor" ICQ: 45652354