A reader writes, “Here’s a circuit bent delay, built from a karaoke machine. There are four feedback modes: soft, hard, static wave, and dump repeat. The speed can vary from a fraction of a second to over ten seconds, with awesome grain added as the delay increases. A hold and pulse button are also provided. Runs off batteries and has built-in speakers. Makes noise without anything running through it as well.”

[youtube]http://www.youtube.com/watch?v=QY2V_0A0wh4[/youtube]

More information on the Seaweed Factory Blog including some circuit bending directions for Univox SR-55, Casio PT-87, and Yamaha PSS-14.